experiment 1: spectroscopy-infrared (ir) spectroscopy and nuclear magnetic resonance (nmr) spectroscopy

Answers

Answer 1

EPR (ESR) Spectroscopy is compatible with leading brands but with fair and reasonable price.

EPR (ESR) Spectrometers for free radical, polymer materials, catalytic mechanism research.

What is Spectrometers ?

An equipment used to measure a physical quantity's spectrum is called a spectrometer. The term "spectrometer" is commonly used to refer to an optical spectrometer that measures the electromagnetic spectrum of light. Mass spectrometry and Auger electron spectroscopy, for instance, both use different types of spectrometers.

Measurements of light's characteristics in a particular area of the electromagnetic spectrum are made using an optical spectrometer. Light intensity is typically the variable quantity that is measured, though it might sometimes be anything else, such polarization.

The wavelength of light, which is frequently stated in a fraction of a meter but can also be expressed in a unit directly proportional to the energy of a photon, like the wave number, is the independent variable.

To learn more about Spectrometers  from the given link:

https://brainly.com/question/14854785

#SPJ4

Answer 2

EPR (ESR) Spectroscopy is compatible with leading brands but with fair & reasonable price. EPR (ESR) Spectrometers free radical, polymer materials, catalytic mechanism research.

What is Spectrometers ?

An equipment used to measure a physical quantity's spectrum is called a spectrometer. The term "spectrometer" is usually used to refer to an optical spectrometer that measures the electromagnetic spectrum of light.

Mass spectrometry and Auger electron spectroscopy, as an example , both use differing types of spectrometers.Measurements of light's characteristics during a particular area of the electromagnetic spectrum are made using an optical spectrometer. candlepower is typically the variable quantity that is measured, though it'd sometimes be anything else, such polarization.

The wavelength of sunshine , which is usually stated in a fraction of a meter but can also be expressed in a unit directly proportional to the energy of a photon, just like the wave number, is that the independent variable.

Learn more about spectrometer:

brainly.com/question/14854785

#SPJ4


Related Questions

Which element is a halogen?
A. chlorine (Cl)
B. oxygen (O)
C. carbon (C)
D. radon (Rn)

Answers

Answer:

Chlorine (Cl)

Chlorine is a halogen. Halogens are group 7A elements, which include fluorine, chlorine, bromine, iodine, and astatine.

So, the answer would be A.

Consider the balanced equation below.

What is the mole ratio of PCl3 to PCl5?
1:1
2:1
3:5
5:3

Answers

From the balanced equation below the mole ratio of PCl3 to PCl5 is 1:1

How can the mole ration be gotten?

\(PCl_{5} + PCl_{5}\) -------------------> \(PCl_{5}\)

Number of moles of \(PCl_{3}\) can be expressed as  1 mole

Number of moles of  \(Cl_{2}\) can be expressed as 1 mole

Number of moles of  \(PCl_{5}\) can be expressed as 1 mole

Mole ratio of \(PCl_{5}\) can be expressed as 1:1

The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A comparison of the ratios of the molecules required to accomplish the reaction is given by the balancing chemical equation.

Learn more about mole ratio at;

https://brainly.com/question/30632038

#SPJ1

Halons contain halogens, which are highly reactive with oxygen. ?.

Answers

The given statement "Halons contain halogens, and they are highly reactive with oxygen" is true. Because, this property makes them highly effective as fire extinguishing agents.

When a halon is released into a fire, the halogen atoms react with the fire's fuel, oxygen, and heat, disrupting the chemical reactions that sustain the fire. The halogens in halons are highly reactive and can remove the oxygen from the fire triangle, which is essential for combustion to occur. This process is known as chemical flame inhibition, and it interrupts the chemical reaction chain that allows the fire to continue burning.

In addition to their effectiveness in fighting fires, halogens are also highly stable and non-flammable, which makes them a suitable choice for use in environments where traditional water or foam extinguishing agents would be ineffective or potentially damaging.

To know more about Halons here

https://brainly.com/question/1621805

#SPJ4

--The given question is incomplete, the complete question is

"Halons contain halogens, which are highly reactive with oxygen? True or false."--

pure potassium hydrogen phthalate (khp) is used for the standardization of the naoh solution. suppose the khp is only 90% pure. will the reported molarity of the naoh be too high, too low, unaffected? explain why.

Answers

the reported molar concentration of the sodium hydroxide solution will be too high when is used for the standardization of the naoh solution.

The term "standardization" in scientific or analytical chemistry means the process of determining standards or concentrations of a particular substance.

One of the benefits of standardization, and the most important one, is that you get results with minimal error.

.A standard solution has an accurately known concentration and for this experiment sodium hydroxide was standardized with a primary standard acid, potassium hydrogen phthalate. A primary standard could be any pure chemical that can be used as the initiation of a quantitative analysis.

If the khp is only 90% pure, the real mass of the acid will be less than weighed doing less the real moles of potassium hydrogen phthalate. Thus, in titration, volume of NaOH will be less than real volume and reported molar concentration will be too high.

learn more about standardization https://brainly.com/question/26659980

#SPJ4

The hydrides of group 5a are nh3 , ph3 , ash3 , and sbh3. Arrange them from highest to lowest boiling point.

Answers

The hydrides of group 5a are NH₃ , PH₃ , AsH₃ , and SbH₃, the arrangement of these from highest to lowest boiling point is SbH₃ > NH₃ > AsH₃ > PH₃

The boiling point is the temperature at which the vapor pressure of any liquid equals the pressure of the gas above it. The boiling point depends on the molecules' intermolecular forces and molecular weight. To arrange the given molecules according to the boiling point, we look at the molecular weight and the intermolecular forces. Due to the high molecular weight SbH₃ shows the highest boiling point. N shows 2nd highest boiling point due to high H-bonding, the least boiling is shown by PH₃.

You can also learn about intermolecular forces from the following question:

https://brainly.com/question/9007693

#SPJ4

that liquid pressure increases with the depth on the basis of the following points materials required​

Answers

more you push the block the more will be the pressure.

what is the opposite of a heterotroph

Answers

The opposite of heterotroph is autotroph.

What is heterotroph?

An organism is referred to as a heterotroph if it consumes other plants or animals for food and energy. Its origins are in the Greek words hetero, which means "other," and trophe, which means "nutrition."

Examples - Human, birds, dogs, etc.

What is autotroph?

A primary producer, also known as an autotroph, is an organism that uses energy from light or inorganic chemical reactions to create complex organic chemicals from simple ones, such as carbon dioxide.

Example - plants, algae etc.

The opposite of heterotroph is autotroph.

To know more about autotroph, check out:

https://brainly.com/question/10253663

#SPJ1

J. Predict the type of nuclear process for each of the following radioisotopess alpha decay (A), beta decay (B), or positron emission/ electron capture (ECP).

Answers

The Positron emission/electron capture (ECP) occurs when a proton in the nucleus is converted into a neutron, and either a positron is emitted from the nucleus or an electron from the electron cloud is captured by the nucleus.

However,  the general information about the types of nuclear processes.

Alpha decay (A) occurs when an alpha particle, which is a helium nucleus, is ejected from the nucleus.

Beta decay (B) occurs when a neutron in the nucleus is converted into a proton and an electron is emitted from the nucleus.

Positron emission/electron capture (ECP) occurs when a proton in the nucleus is converted into a neutron, and either a positron is emitted from the nucleus or an electron from the electron cloud is captured by the nucleus.

Learn more about electron with the given link,

https://brainly.com/question/860094

#SPJ11

Give one example of
a) Homogeneous mixture of two elements

Answers

Answer:

honey

Coffee

blood

Explanation:

These components are uniformly distrubuted and these cannot be seperated unlike heterogeneous

Water (Hydrogen and oxygen)
Ammonia (nitrogen and hydrogen)
Methane(carbon and hydrogen)
Table salt ( sodium and chlorine)

An oxygen atom has a mass of 2.66 × 10 -23 g and a glass of water has a mass of 0.050 kg.
Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.
What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits.
go
How many moles of oxygen atoms have a mass equal to the mass of a glass of water?
0
Round your answer to 2 significant digits.

Answers

For the first question, we need to use the given mass of one oxygen atom to calculate the mass of 1 mole of oxygen atoms. We can use Avogadro's number, which tells us that there are 6.022 × 10^23 atoms in 1 mole.
Therefore, 3.1 moles of oxygen atoms have a mass equal to the mass of a glass of water (2 significant digits).

The mass of 1 mole of oxygen atoms can be calculated using Avogadro's number (6.022 × 10^23 atoms/mol). To find the mass of 1 mole, multiply the mass of a single oxygen atom by Avogadro's number:
(2.66 × 10^-23 g/atom) × (6.022 × 10^23 atoms/mol) = 16.0 g/mol
So, 1 mole of oxygen atoms has a mass of 16.0 g (3 significant digits).
To find how many moles of oxygen atoms have a mass equal to the mass of a glass of water, first convert the mass of the glass of water to grams:
0.050 kg × (1000 g/kg) = 50 g
Next, divide the mass of the glass of water by the mass of 1 mole of oxygen atoms:
50 g / (16.0 g/mol) = 3.1 mol
Therefore, 3.1 moles of oxygen atoms have a mass equal to the mass of a glass of water (2 significant digits).

To know more about Avogadro's number visit:

https://brainly.com/question/28812626

#SPJ11

Why the microscope is made an inclination joint?

Answers

Answer:

inclination joint This is the joint between the pillar and the arm of the microscope. It is used to tilt the body tube and stage. It is usually best to keep the stage horizontal.

Explanation:

when a can of coke is taken out of the fridge and warmed up to room temperature, group of answer choices there is not enough information. the entropy of the beverage will increase. the entropy of the beverage will stay the same. the entropy of the beverage will decrease.

Answers

When a can of coke is removed from the fridge and then warmed up to room temperature, the entropy of the beverage will increase.

We can define entropy as the disorderness of a system or the randomness of a particular system. The entropy of a system changes with a change in the temperature of the system.

As the temperature increases, the entropy of the system also increases and when the temperature is reduced, the entropy of the system also decreases. When a can of coke is kept in fridge, the entropy decreases as the temperature gets decreased.

As the can of the coke is taken out and warmed up to room temperature, the entropy increases with the increase in temperature as the randomness of the molecules increases.

To know more about entropy here

https://brainly.com/question/14131507

#SPJ4

how does dipping an iron bucket in Molten zinc protect it?​

Answers

Answer:

It forms a barrier that prevents corrosive substances from reaching the underlying steel or iron. The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc. The zinc protects its base metal by corroding before iron.

Explanation:

Answer:

It protects it from corrosion.

Explanation:

Zinc protects iron and steel from the relentless forces of corrosion. Galvanizing iron and steel by dipping them in molten zinc creates an alloy that can, in the right environmental conditions, protect the iron or steel beneath it for 100 years or more.

According to the IUPAC, what is the systematic name for the hydrocarbon shown? A. Z-3-methylpent-2-ene. B. E-3-methylpent-2-ene. C. Z-3-ethylbut-2-ene

Answers

The systematic name for the hydrocarbon shown is B. E-3-methylpent-2-ene according to the IUPAC nomenclature.

The systematic naming of hydrocarbons follows specific rules set by the International Union of Pure and Applied Chemistry (IUPAC). In this case, we have a hydrocarbon with a double bond (ene) and a methyl group attached to the third carbon atom. The "E" in the name indicates that the highest priority substituents on each side of the double bond are on the opposite sides (trans configuration).

Option A, Z-3-methylpent-2-ene, would be the correct name if the substituents on each side of the double bond were on the same side (cis configuration).

Option C, Z-3-ethylbut-2-ene, does not accurately describe the structure shown, as it implies an ethyl group rather than a methyl group.

Therefore, according to the IUPAC nomenclature, the correct systematic name for the hydrocarbon shown is B. E-3-methylpent-2-ene.

To learn more about hydrocarbon click here : brainly.com/question/32019496

#SPJ11

3.
Which statement(s) is/are TRUE for all chemical reactions?

Answers

Answer:

the statement is or are true for all chemical reaction is false

Explanation:

if you think the answer is correct then mark me as brain list

Describe a time in the group discussion when you referred to the notes you took, the graphic organizer you filled out, and your position paper.

Answers

Answer:

To back up any statements I make.

To refute any errors presented.

Explanation:

During a group discussion, you look at your notes to point out an error or when you want to flesh out a point you made.

What is a group discussion?

The term group discussion has to do with learners talking about a topic in a manner ion which each learner takes a turn to explain a portion of the topic.

During a group discussion, you look at your notes to point out an error or when you want to flesh out a point you made.

Learn more about group discussion:https://brainly.com/question/11940982

#SPJ2

a balloon contains 512 ml of helium when filled at 1.00 atm. what would be the volume of the balloon if it were subjected to 2.50 atm of pressure?

Answers

According to Boyle's Law, the volume of a gas is inversely proportional to the pressure applied to it, as long as the temperature and amount of gas remain constant. So, we can use the equation: P1V1 = P2V2. Where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.

We know that:

- P1 = 1.00 atm
- V1 = 512 ml
- P2 = 2.50 atm (the new pressure)
- V2 = ?

Plugging in the values, we get:

1.00 atm * 512 ml = 2.50 atm * V2

Solving for V2:

V2 = (1.00 atm * 512 ml) / 2.50 atm

V2 = 204.8 ml

Therefore, the volume of the balloon would be 204.8 ml if it were subjected to 2.50 atm of pressure.

We can use the Boyle's Law formula which states that for a given amount of gas at constant temperature, the product of the initial pressure and volume is equal to the product of the final pressure and volume:

P1 * V1 = P2 * V2

Where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume. In this case:

P1 = 1.00 atm
V1 = 512 mL
P2 = 2.50 atm
V2 = ?

We want to find V2, so we can rearrange the equation to solve for it:

V2 = (P1 * V1) / P2

Now, plug in the values:

V2 = (1.00 atm * 512 mL) / 2.50 atm

V2 = 204.8 mL

So, if the balloon were subjected to 2.50 atm of pressure, its volume would decrease to 204.8 mL.

To know more about pressure visit:

https://brainly.com/question/9059284

#SPJ11

I need help for this really the image is attached

I need help for this really the image is attached

Answers

The net ionic equations of the reactions are;

3Mn^3+(aq) + 4PO4^3-(aq) ----> Mn3(PO4)4(s)

Pd^2+(aq)  +  S^2-(aq) ----> PdS(s)

What is the net ionic equation?

A net ionic equation is a chemical equation that shows only the species that participate in a reaction and contribute to the formation of a product or the consumption of a reactant.

It excludes any spectator ions that do not undergo a chemical change. In other words, it shows the actual chemical species that are involved in the reaction.

Learn more about net ionic equation:https://brainly.com/question/29299745

#SPJ1

Identify the definition that applies to the compound in red. NH3(aq) + H2O(l) → NH4 (aq) + OH-(aq)
a. Arrhenius acid b. Bronsted-Lowry acid c. Arrhenius base d. Bronsted-Lowry base

Answers

The most appropriate definition for NH3 in the given equation is Bronsted-Lowry base, as it accepts a proton from water to form NH4+ and OH-.

The definition that applies to the compound NH3 in the given chemical equation is Bronsted-Lowry base. The Bronsted-Lowry acid-base theory defines an acid as a substance that donates a proton (H+) and a base as a substance that accepts a proton.

In the equation NH3(aq) + H2O(l) → NH4(aq) + OH-(aq), NH3 (ammonia) acts as a base because it accepts a proton (H+) from water, which acts as an acid. The water molecule donates a proton to ammonia, resulting in the formation of the ammonium ion (NH4+) and the hydroxide ion (OH-).

This reaction exemplifies the concept of proton transfer between species in a chemical reaction. According to the Bronsted-Lowry theory, the ammonia molecule (NH3) accepts a proton, making it a base. Meanwhile, water (H2O) donates a proton, making it an acid.

The Arrhenius acid-base theory defines an acid as a substance that releases hydrogen ions (H+) in an aqueous solution, and a base as a substance that releases hydroxide ions (OH-) in an aqueous solution. In the given equation, NH3 does not release H+ ions, so it does not fit the definition of an Arrhenius acid. Similarly, the hydroxide ion (OH-) in the product side does not fit the definition of an Arrhenius base.

Therefore, the most appropriate definition for NH3 in the given equation is Bronsted-Lowry base, as it accepts a proton from water to form NH4+ and OH-.

learn more about Bronsted-Lowry base here

https://brainly.com/question/29317749

#SPJ11

Answer:

D. Bronsted-Lowry base

Explanation:

what is the product of the combustion of hydrogen​

Answers

Answer:

Hydrogen burns in oxygen to form water. The flame is almost colourless. Mixtures of hydrogen and oxygen (or hydrogen and air) can be explosive when the two gases are present in a particular ratio, so hydrogen must be handled very carefully.

for the following reaction, 0.270 moles of iron are mixed with 0.579 moles of oxygen gas
For the following reaction, 0.270 moles of iron are mixed with 0.579 moles of oxygen gas. iron(s) oxygen(g) → iron(II) oxide(s) What is the formula for the limiting reagent? What is the maximum amount of iron(II) oxide that can be produced?

Answers

The formula for the limiting reagent is Fe, and the maximum amount of iron(II) oxide that can be produced is 0.135 moles.

To determine the limiting reagent and the maximum amount of iron(II) oxide that can be produced, we need to compare the moles of each reactant and their stoichiometric ratios in the balanced equation.

The balanced equation for the reaction is:

4Fe(s) + 3O₂(g) → 2Fe₂O₃(s)

From the balanced equation, we can see that the stoichiometric ratio between iron and oxygen is 4:3. This means that 4 moles of iron react with 3 moles of oxygen to produce 2 moles of iron(II) oxide.

Moles of iron(II) oxide = min (0.270 moles of Fe, (0.579 moles of O₂) × (2 moles of Fe₂O₃ / 3 moles of O₂))

To determine the limiting reagent, we compare the moles of iron and oxygen and choose the reactant that produces the lesser moles of iron(II) oxide. In this case, we have:

Moles of iron(II) oxide produced from 0.270 moles of Fe = 0.270 moles × (2 moles of Fe₂O₃ / 4 moles of Fe) = 0.135 moles

Moles of iron(II) oxide produced from 0.579 moles of O₂ = 0.579 moles × (2 moles of Fe₂O₃ / 3 moles of O₂) = 0.386 moles

Since 0.135 moles of iron(II) oxide is less than 0.386 moles, the limiting reagent is iron.

Therefore, the formula for the limiting reagent is Fe, and the maximum amount of iron(II) oxide that can be produced is 0.135 moles.

Learn more about limiting reagents here:

https://brainly.com/question/31171741

#SPJ11

¿Cuál es la principal diferencia entre la idea de átomo de Dalton y la de Rutherford?

Answers

como estas homie jit cuh fr

Espero que esta respuesta te sirva
Cul es la principal diferencia entre la idea de tomo de Dalton y la de Rutherford?

in a redox-reaction that uses starch as an indicator, the solution turns blue-black. what can we say about that reaction?

Answers

Answer:

The reaction is nutride-cullic and sees all math about our lives.

Explanation:

Name these compounds according to IUPAC.

Name these compounds according to IUPAC.

Answers

The name of the compound CH₃CHOOH is acetic acid.

What is IUPAC naming rules?

The International Union of Pure and Applied Chemistry (IUPAC) names organic compounds according to chemistry rules.

To locate the longest carbon chain, there are various requirements to follow, such as finding the functional group.

Thus, the name of the compound CH₃CHOOH is acetic acid.

Learn more about IUPAC

https://brainly.com/question/16631447

#SPJ1

Perform the following operation
and express the answer in
scientific notation.
3.60x10-12 + 3.60x10-11

Perform the following operationand express the answer inscientific notation.3.60x10-12 + 3.60x10-11

Answers

Answer:

3.60X10^-12 is equal to 0.360X10^-11 (move decimal one place left)

 

Now you can add 3.60X10^-11 and 0.360X10^-11:

 

3.60X10^-11 + 0.360X10^-11 = 3.96X10^-11

 

You're really just adding 3.60 to 0.36 since the "X10^-11" is the same for both.

36-12+36-11
24+25
= 49

All of the following are true about scientific theories, except:
O A theory is an explanation of why
something happens.
O Theories must have been extensively
tested.
O A theory can be the result of one
scientific investigation.
O Theories are based on many
observations.

Answers

I think it’s the 3 one

What is produced at the anode in the electrolysis of molten CuF2? O A. F2 O B. H2 O C. cu D.02

Answers

The produced at the anode in the electrolysis of molten CuF2 is A. F₂.

During electrolysis, CuF₂ will separate into Cu₂⁺ cations and F⁻anions. Cu₂⁺ will be reduced to copper metal, which will deposit on the cathode, whereas F⁻ anions will be oxidized to fluorine gas on the anode in the electrolysis of molten CuF₂. Hence, the answer is option A. Fluorine gas (F₂) is generated at the anode in the electrolysis of molten CuF₂.

Therefore, during the electrolysis of molten CuF₂, Cu₂⁺ is reduced to copper metal, which deposits on the cathode, and F⁻ anions are oxidized to fluorine gas on the anode, which is produced at the anode. The chemical reactions taking place during electrolysis of CuF₂ are given below: At the cathode, Cu₂⁺ cations get reduced to copper metal. Cu₂⁺ + 2e⁻ ⟶ Cu. At the anode, F⁻ anions get oxidized to fluorine gas. 2F⁻ ⟶ F₂ + 2e⁻. Therefore, option A is correct.

Learn more about electrolysis at:

https://brainly.com/question/12994141

#SPJ11

3. Which of the following items is representative of a homogeneous
mixture?
2 points
A. spaghetti & meatballs
B. cheeseburger
C. white bread dough
D. smoothie
E. Both A and B
O F. Both C and D
4. Which of the following is a chemical property of matter?

Answers

Answer: F. both c and d

Explanation:

homogeneous mixture is of same kind/phase. so the most appropriate answer we can take is smoothie and white bread dough :)

The answer is F
Explanation: the answer is F because a homogenous mixture can’t be taken apart or separated which in that case once bread dough is formed you can no longer take out the flour and other ingredients and same with the smoothies you’ve blended the fruit together you can’t send it to its original state

Organic compounds are a source of _______.​

Answers

Answer:

Petroleum and coaltar are the main sources of organic compounds. (edit: Protein is most likely correct because I did some further research and I am mistaken I believe the other answer is right because it is also found to be a source of energy aka protein)

Explanation:

Organic compounds are a source of _______.

how many electrons are in 40 Ne?

Answers

40 Ne has 10 electrons which consist of 10 protons and 10 neutrons

Neon is a chemical element which is rare gas or noble gas as it has a stable octet electronic configuration, meaning it has 8 valence electrons in its outermost shell.

Neon belongs to group 0/VIII and period 1 of the periodic table.

What is an element?

An element is a substance which takes part in a chemical reaction. There are different classes of elements which includes the metals, nonmetals and the metalloids.

So therefore, 40 Ne has 10 electrons which consist of 10 protons and 10 neutrons.

Learn more about elements:

https://brainly.com/question/1379504

#SPJ1

Other Questions
pangkalahatan Meaning and examples (batas moral) Need for reporting , Thank you. if you spin the spinner 12 times what is the best prediction possible for the number of times it lands on pink or yellow What net external force is exerted on a 1350-kg artillery shell fired from a battleship if the shell is accelerated at 2.00 104 m/s2? (Enter the magnitude.) NWhat is the magnitude of the force exerted on the ship by the artillery shell? N how many servings of proteins should school school age child consume per day?A) fiveB) threeC) TwoD) Four What decimal is equivalent to 4/20 Show your work for the following problems. 3. A gas at a fixed temperature has a volume of 3. 41L. Its pressure is changed from 4. 22atm to 1. 202atm. What is the new volume at constant temperature? initially evacuated. A valve is opened and Air at 200kPa and 57C is allowed to enter the tank until the pressure is 100kPa etank is approximately ( in C) 175 c. 187.5 d. 30.3 e. None tain a house at 30C while the outside temperature is 0C. The house loses heat to the outside air at a rate of 10 kW. the power (in kW ) required to drive the heat pump is: 2.5 c. 4 d. 2 e. None PLZZZ HELP YOULL GET BRAINLIEST!Chelsea is writing an essay on famous musicians of the last 25 years. She needsto write about at least three. She makes a list that includes the Winans, MichaelJackson, Beyonce, U2, Stephen Curtis Chapman, and Carrie Underwood. Shenarrows her list down, thinks about categories on which she can write for eachsinger, and creates a cluster so she can begin writing. What would Chelsea'scluster look like? The concrete mix design will be carried out according to the British Building Research Establishment method. Calculate the proportions of cement, water and aggregates for 1m^3 of concrete (in kg). The following requirements are specified: a) Target mean compressive strength =25MPa at 7 days. b) Portland cement class is 42.5. c) Slump required is 3060 mm. d) Maximum aggregate size is 20 mm. e) Maximum cement content is 350 kg/m^3 . Additional information: The fine and coarse aggregates to be used are crushed; the bulk density is unknown, The fine aggregate has 40% passing a 600m sieve, Two types of coarse aggregates are used: 10 mm and 20 mm. Which of the following statements concerning building materials and stresses is FALSE? In karate demonstrations, it is only the speed with which bricks are struck that matters, not the type of stress those bricks experience. Rocks are stronger under compression than tension, so earthquakes pose more of a risk along convergent margins than divergent ones. In posts and lintels, the bottom of the horizontal lintel stone is under tension, and rock cannot withstand tension as easily as compression. Stone arches can be much wider than stone lintels because all the rocks making up the arch are tnder compression rather than tension. The designs and architecture of buildings built of natural or artificial rocks have to consider the types of stress those materials are under. In Part 7, page 5 of the novel, last sentence: Man and the claims of man no longer bound him. (Explain what the narrator means). constant at relaxing explored invisible welcome Regarding Brown vs the Board of Educationin 1959 the court declared that schools should begin the practical process of desegregation "with all deliberate speed." Some states complied but others did not.True or False? a diver is 19 meters below the surface of the water.use an interger to represent how far the diver will need to travel to reacg the surface' Explain the function of database administrator.don't spam.. Solve the problem. The function D(h) = 5e^-0.4h can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after 9 hours? a. 182.99 mg b. 0.14 mg c. 1.22 mg d. 3.35 mg During the night in The Time Machine, after the Time Traveller explores the well and meets the Morlocks, he gets distracted by something. What is he distracted by?A. A math problemB. SpaceC. He wants to marry Weena.D. A wound A landscaper charges a fee of $150 to replace plants in a flower bed plus $0.75 per plant,p. Which of the following equation represents the total cost,t,replacing p plants?A. t=(150+0.75)pB. t=150p+0.75C. t=150p+0.75pD. t=150+0.75p If Mrs. Allan's car uses 8 gallons of gas for a 224-mile trip, then, at that rate, how many gallons of gas would the car use for a 560-mile trip? Nonconstant Dividends Premier, Inc., has an odd dividend policy. The company has just paid a dividend of $3.75 per share and has announced that it will increase the dividend by $5 per share for each of the next four years, and then never pay another dividend. If you require a return of 11 percent on the company's stock, how much will you pay for a share today?