Using the periodic table above and your knowledge of patterns and trends on the table, which of the following elements has the highest electronegativity? (1 pt)
*
1 point
Titanium (Ti, #22)
Silicon (Si, #14)
Oxygen (O, #8)
Argon (Ar, #18)

Answer:

C

Explanation:

4.They are different states of the same pure substance

Answer:

magnesium

Explanation:

Magnesium has lesser valens electron than Ca, therefore the force for Mg between the nucleus and outer orbit of electron is lesser. Also, the radius will increase

Answer:

Gallium

has a larger ionic radius than (ca).

Answer:

NO

Explanation:

NO NO NO

i am way to much of an idiot for this (hope i made you laugh (and mad cuz i did not answer) :3)

Answer:

A im pretty sure

Explanation:

Answer:

D.) The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.

Answer

The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.

The natural process of the body's muscles hardening after death is known as rigour mortis. Adenosine triphosphate (ATP), which is necessary for muscular relaxation, is depleted, which causes it to

The postmortem condition known as rigour mortis affects the body's muscles, causing them to stiffen and make movement impossible. The lack of ATP, the energy molecule necessary for muscular relaxation, is the cause of it. When ATP generation stops after death, the muscles constrict and stiffen. After 2-4 hours of death, rigour mortis normally starts and can persist up to 48 hours until the muscles start to relax as a result of decomposition. Age, temperature, and physical state at the moment of death are a few variables that might affect the severity and length of rigour mortis.

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When selecting a photometric technique that is more sensitive to a low concentration of analyte, a laboratory director compares absorbance measuring devices against those that measure fluorescence intensity. Fluorescence spectroscopy is considered more sensitive in its measurements.

Spectro-fluorometer works on the above mentioned principle...

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this was great and fun to do

The main answer to the question is that the partial pressure of O2 in the sample can be calculated using Dalton's law of partial pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of the individual gases in the mixture.

To find the partial pressure of O2, we need to subtract the vapor pressure of water from the total pressure of the sample. This will give us the pressure exerted by the O2 gas alone. Partial pressure of O2 = Total pressure - Vapor pressure of water,Partial pressure of O2 = 674.2 mmHg ÷ 760 mmHg/atm

the vapor pressure of water is subtracted from the total pressure of the sample to obtain the partial pressure of O2. The resulting pressure is then converted to units of atmospheres by dividing by the standard atmospheric pressure. Dalton's law of partial pressures is used to determine the contribution of each gas mixture to the total pressure.
The main answer you're looking for is the partial pressure of O2 in the sample in units of atmospheres.
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Answer:

Shaggy off the today science ka sara kam yyyyyy the today science and technology y rocks and minerals and vitamins a

The mass of I2 reacted is  142.2 g

The mass of PCl3 reacted is 153.4 g

Stoichiometry is a fundamental concept in chemistry and is used in many different areas of science and industry.

We know that;

Number of moles of the F2 produced = 21.1 g/38 g/mol

= 0.56 moles

If 1 mole of I2 produced 1 mole of F2

Then 0.56 moles of I2 reacted

Mass of the I2 reacted = 0.56 mol * 254 g/mol

= 142.2 g

Number of moles of PCl5 = 234.1 g/208 g/mol

= 1.12 moles

If the reaction is 1:1:1

Mass of the PCl3 reacted = 1.12 moles * 137 g/mol

= 153.4 g

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Half of the parent nuclei of an element must change into the offspring isotope in a quarter of the time. The atom loses two electrons and two protons in total as a result of alpha decay. The radiometric dating half-life is 5,730 years.

The half-life of each radioactivity is an additional characteristic. A radionuclide's half-life would be the duration it requires for half of its radioisotopes to decay. A sensible generalization is that you will have less radiation than 1% of the initial amount after seven half-lives.

There is a decay rate for each radioactive substance. A half-life is the time it requires to half of a radioactive atom to decay. For instance, the six-hour half-life of the aforementioned technetium-99m indicates that, starting at 100%, after six hours, 0%

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Chymotrypsin is an enzyme that catalyzes the hydrolysis of peptide bonds, breaking them down into smaller peptides and amino acids. Chymotrypsin is specific in its substrate specificity, meaning that it only cleaves peptide bonds in certain types of peptides.

The reason why chymotrypsin cleaves a peptide bond only after amino acids with aromatic or large hydrophobic side chains is due to the unique structure and chemical properties of these amino acids. Therefore, chymotrypsin cleaves a peptide bond only after amino acids with aromatic or large hydrophobic side chains because these amino acids interact with the active site of the enzyme in a way that allows the peptide bond to be cleaved.  

Aromatic amino acids, such as tryptophan, tyrosine, and phenylalanine, have a planar, unsaturated ring structure. This ring structure creates a unique interaction with the active site of chymotrypsin, which is composed of a metal ion and several amino acid residues. The aromatic amino acids are able to bind to the active site of chymotrypsin, stabilizing the enzyme-substrate complex and allowing the peptide bond to be cleaved.

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The net ionic equation for the behavior of ethylamine (C₂H₅NH₂) as a Bronsted-Lowry base in water is:

C₂H₅NH₂ + H₂O → C₂H₅NH₃⁺ + OH⁻

The net ionic equation for the behavior of benzoic acid (C₆H₅COOH) as a Bronsted-Lowry acid in water is:

C₆H₅COOH + H₂O → C₆H₅COO⁻ + H₃O⁺

In water, ethylamine (C₂H₅NH₂) can act as a Bronsted-Lowry base by accepting a proton (H⁺) from water. The reaction can be represented by the net ionic equation: C₂H₅NH₂ + H₂O → C₂H₅NH₃⁺ + OH⁻. In this equation, ethylamine (C₂H₅NH₂) accepts a proton from water (H₂O) to form the ethylammonium ion (C₂H₅NH₃⁺) and hydroxide ion (OH⁻). This shows the base behavior of ethylamine as it accepts a proton.

On the other hand, benzoic acid (C₆H₅COOH) can act as a Bronsted-Lowry acid in water by donating a proton (H⁺) to water. The reaction can be represented by the net ionic equation: C₆H₅COOH + H₂O → C₆H₅COO⁻ + H₃O⁺.

In this equation, benzoic acid (C₆H₅COOH) donates a proton to water (H₂O) to form the benzoate ion (C₆H₅COO⁻) and hydronium ion (H₃O⁺). This demonstrates the acid behavior of benzoic acid as it donates a proton.

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Answer:

bromine

Explanation:

they are found on the crust

Answer:

crust

Explanation:

Answer:98

Explanation:X/423 = 75.0/323 X = 98

Considering the Charles' Law, the original volume is 98.22 mL.

Charles' Law consists of the relationship that exists between the volume and the temperature of a certain amount of ideal gas, which is maintained at a constant pressure.

This law states that for a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of movement that they have. the gas molecules. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law states that the ratio between volume and temperature will always have the same value:

\(\frac{V}{T}=k\)

Considering an initial state 1 and a final state 2, the following is true:

\(\frac{V1}{T1}=\frac{V2}{T2}\)

In this case, you know:

Replacing in Charles's law:

\(\frac{V1}{423 K}=\frac{75 mL}{323 K}\)

Solving:

\(V1=\frac{75 mL}{323 K}423 K\)

V1= 98.22 mL

In summary, the original volume is 98.22 mL.

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The correct options for 8, 9 and 10 are C, A and A respectively.

8. Nuclear reactions, including nuclear fusion and nuclear fission, both involve the conversion of mass into energy and the release of large amounts of energy.

9. The correct reaction is Be+,He-12C+1on.

The process of producing a nuclear reaction by colliding atomic nuclei with particles is called artificial transmutation. In this example, an alpha particle (He-12C) is used to bombard a beryllium nucleus (Be) to create a separate nucleus.

10. The picture shows a neutron colliding with a heavy nucleus, causing the nucleus to break into smaller pieces. This process is named nuclear fission.

11. Nuclear fission is a type of nuclear reaction that equation 1 shows. In this reaction a neutron is absorbed by a uranium-235 nucleus, resulting in the release of krypton-92, barium-142, another neutron, and energy. Nuclear fission, which is characterized by the breaking of a heavy nucleus into smaller pieces, occurs during this reaction.

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The chlorophyll processes the ingredients to make

(plant food) and

Answer:

oxygen

Explanation:

When a gas-filled container is cooled, the pressure in the container decreases because the particles in the gas have less kinetic energy.

The pressure of a gas is related to the average kinetic energy of its particles. When the gas is cooled, the particles lose kinetic energy and their average speed decreases. As a result, they collide with the walls of the container less frequently and with less force, leading to a decrease in pressure. This relationship is described by the Ideal Gas Law, which states that pressure is directly proportional to the temperature and the number of particles, and inversely proportional to the volume of the container.

Therefore, option (b) is the correct answer: the particles in the gas have less kinetic energy when the container is cooled, leading to a decrease in pressure.

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Beans are processed through 'nibbing'. During the nibbing process, the roasted cocoa beans are crushed and ground into a paste called cocoa mass or cocoa liquor.

This cocoa mass can then be further processed to separate the cocoa solids from the cocoa butter, which is the fat component of the cocoa bean. The separated cocoa solids and cocoa butter are used in the production of chocolate. Pure cocoa mass (cocoa paste) in solid or semi-solid form is known as chocolate liquor. It includes about equal amounts of cocoa butter and solid cocoa, much like the cocoa beans (nibs) from which it is made. It is made from fermented, dried, roasted, and separated from their skins cocoa beans. To make cocoa mass (cocoa paste), the beans are pulverised.

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Answer:

A glucose molecule is made up of 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms. This is a 1:2:1 ratio. Hopefully, this helps!

Explanation:

Gas rule in combination: P1V1/T1 = P2V2/T2. Calculate pressure, volume, and temperature using the gas laws.

The following equation describes how magnesium reacts with hydrochloric acid: Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2 (g) This experiment can be used to demonstrate the production a single replacement reaction, the normal metal-acid reaction, or the reaction of hydrogen gas.

P1 = 767.11 mm of Hg

V1 = 42.54 ml

T1 = T2 = constant

P2 = 13.27 mm hg

V2 = ?

P1V1T1 = P2V2T2

767.11 × 42.54 = V2 ×13.27

V2 = 767.11 × 42.54 / 13.27

V2 = 2454.75 ml

The liquid level difference to be 111.27

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Answer:

Iconic, neutral, and cation

Explanation:

When a metal and a nonmetal react, the result is a(n) Ionic compound. Ratio of cat ions and anion depends on the ionic charge of each. All ionic compounds come together in the simplest ratio to make a  neutral formula unit and the cation  is always written first in the formula.

The ionic compounds are solids in crystalline form and these are formed by opposite charged ion packing,  formed by the reaction of metals react with non-metals.

Elements can either gain or lose electrons in order to achieve noble gas configuration and these formation of ions helps them gain stability, the structure of ionic compound depend on the relative sizes of the cations and anions.

Ionic compounds are salts, oxides, hydroxides, sulphides, and the inorganic compounds. Ionic solids are held together by the electrostatic attraction between the positive and negative ions.

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Answer:

Explanation:

I willl go into a bit of detail on the haloform reaction. So the first few steps involve forming an enolate using the base, typically NaOH. THe enolate and go on to do alpha halogenation 3 times. After that, is leaves a trisubstituted alpha methyl carbon with a specific halogen. This is a good leaving group in itself and can carbonyl nucleophillic substitution and turn into a carboxylic acid with a CHZ3- byproduct where Z represents a halogen.

(a) To get the pH of the media to 5.8, you would add NaOH solution. NaOH is used as a basic solution, and when it is added to a solution, it will increase the pH of the solution.

(b) The molecular weight of BA is 225.3. To prepare a 1M solution, you would have to weigh out 225.3 grams of BA.(c) To convert a 1M solution of BA to mg/mL, you can use the following equation: 1 mole = molecular weight in grams; 1000 millimoles = 1 mole. So, 1 M = 1000 mg/mL. Therefore, a 1M solution of BA is equivalent to 1000 mg/mL .(d) To convert a concentration of 1000 mg/mL .

Therefore, to calculate the weight required for a 5 mM solution, use the following formula :Mass of BA = molarity × volume × molecular weight= 5 × 0.001 × 225.3= 1.1265 grams(f) To convert a concentration of 5 mM to mg/mL, we use the following formula: Concentration (mg/mL) = (Concentration (mM) × Molecular weight) / 1000= (5 × 225.3) / 1000= 1.1265 mg/mL(g)

To convert a concentration of 1.1265 mg/mL to mg/L, we multiply by 1000, so 1.1265 mg/mL = 1126.5 mg/L.(h) Given that the stock solution of BA is 5 mM and the working solution is 0.2 mg/mL.

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Molecular formula has the actual number of atoms in the molecule

A Molecular formula is a way to describe the chemical ratios of the atoms that make up a specific chemical compound or molecule in chemistry. Chemical element symbols, numbers, and occasionally other symbols, such as parentheses, dashes, brackets, commas, and plus (+) and minus () signs, are used to represent the chemical elements. These can only include one typographic line of symbols, which may also include subscripts and superscripts. A chemical formula has no words and is not the same as the chemical name. A chemical formula does not equal a complete chemical structural formula, despite the fact that it may suggest some basic chemical structures. Chemical formulae are often less powerful than chemical names and structural formulae, and they can only fully describe the structure of the simplest molecules and chemical compounds.

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Answer:

the right answer is b !!!

Answer: 13.1

Explanation: just round the .06 to 1 creating three sig figs.