explain why the density of the metal has a high inheirt percetenage of error than the value for the liquid
Answers
The density of the metal has the high inherit percentage of error than the value for the liquid because the possibility error in measuring the volume of the solid is more than the liquid.
The density is expressed as follows :
Density = mass / volume
The volume of the solid cannot be measure directly. The volume of the solid can be measured by immersing the solid in to the liquid and then we measure the volume of the liquid displaced. The possibility error in measuring the volume of the solid, especially when the shape of the solid is irregular, is more than the liquid.
To learn more about density here
https://brainly.com/question/29775886
#SPJ4
Related Questions
Predict the relative reducing power of the group 2A elements. Rank from strongest to weakest reducing agent. To rank items as equivalent, overlap them.
Mg Be Ca Ba Sr
weakest reducing agent , strongest reducing agent
The correct ranking cannot be determined.
Answers
The relative reducing power of group 2A elements is Ba > Sr > Ca > Mg > Be.
How does the reducing ability of an element vary along a group?Reducing power refers to the ability of a substance or system to act as a reducing agent, which is capable of donating electrons or reducing another substance by transferring electrons to it. In other words, reducing power is the capacity of a substance to facilitate reduction reactions by providing electrons to reduce other molecules or ions.
In Group 2A elements, the reactivity increases as you move down the group. This is due to the increasing atomic size and the decreasing ionization energy, making it easier for the elements to lose electrons and act as reducing agents.
Based on this trend, we can rank the elements as follows:
Strongest reducing agent: Ba > Sr > Ca > Mg > Be (weakest reducing agent)
To know more about Reducing agents:
https://brainly.com/question/17206144
#SPJ11
a- Write the name of the process when the electron falls to a lower energy level and a photon is emitted
Answers
Answer:
emission
Explanation:
when atoms return to lower energy levels they emit photons, in a process called emission
) Based on your observations, what conclusion can you draw about the factors affecting the ability of an enzyme?
Answers
Answer:
Explanation:
Enzyme activity is affected by the increase in temperature.
enzyme activity is also affected by the change in ph.
enzyme activity is also affected when substrate concentration is not increased in a chemical reaction.
Based on your observations, enzyme activity is affected by the increase in temperature.Enzyme activity is also affected by the change in pH.
What are observations?
Observations are defined as a set of statements or facts which are recorded while conducting an experiment.Observations are made through sensing changes in the variables of the experiment.
It is specifically defined as an act of knowing or recording the changes in the variables of the experiment.Recording observations holds importance as recording observations avoid the experiment to be repeated over and over again.
It is important to note down observations so that the testing of hypothesis is made easier.There are four types of observations .Observations need to be descriptive and must be written in complete sentences and should include all the numerical data of the experiment.
Learn more about observations,here:
https://brainly.com/question/30522443
#SPJ3
Mass of Material
in Beaker
350.0 g
Initial Temperature
419°C
Final Temperature
30.9°C
Using the specic heat and the mass of the water, Camille
calculated that the water absorbed 16.4 kJ of heat. What is
the specific heat of the liquid in the beaker?
Select one
O4260
o 1800 kg
O 3850 kg
O 7570
Answers
Which of the following is an example of the endocrine system maintaining homeostasis?
Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
Using sense organs to get information about the outside world and direct an appropriate body response release
Answers
The endocrine system is a complex system of glands and hormones that regulate many bodily functions and maintain homeostasis. Homeostasis refers to the body's ability to maintain a stable internal environment despite changes in the external environment. One example of the endocrine system maintaining homeostasis is the regulation of blood sugar levels by the pancreas.
For such more question on homeostasis
https://brainly.com/question/1046675
#SPJ8
difference between acids and bases in terms of ions
Answers
Answer:
The answer will be listed below.
Explanation:
An acid is a substance that produces (H+) as the only positive ion when mixed with water. A base is a substance that produces (OH–) as the only negative ion when mixed with water.
Answer:
An acid increases the concentration, A base is a substance that releases hydroxide
Explanation: A base donates electrons and accepts protons, and acid is a substance that donates protons.
State what would most likely happen to the rate of the enzyme action if the temperature
were reduced by 10 degrees?
Answers
Answer:
The reaction will slow down because it is below the optimal temperature.
Explanation:
Enzymes catalyses a reaction and thus increases its rate. The rate of enzyme action is dependant on temperature by Arrhenius equation. If the temperature reduces 10 degree celsius, then the rate enzyme action rate will also decreases accordingly.
What are enzymes?An enzyme is a biological catalyst. They increases the rate of chemical reactions by attaining equilibrium fastly. This is achieved by decreasing the activation energies of the reactants.
There are various kinds of enzymes which are specific in their function and specific to some substrates. The temperature at which an enzyme shows its maximum activity is called optimum temperature.
The Arrhenius equation showing the relation between rate of reaction and temperature is:
\(K = Ae^{- \frac{E_{a}}{RT} }\)
Hence, as the temperature increases rate also increase. The enzyme activity also. Therefore if the temperature reduces the enzyme activity reduces.
To find more on enzymes, refer here:
https://brainly.com/question/14953274
#SPJ2
Explain, in your own words, why the pH of the distilled water is more sensitive to the addition of the acid than is the buffer solution: Buffers based on di- or triprotic acids may have multiple pH regions over which they are stable. That is, they exhibit some stability as the pH of solution is equivalent to each of their pKas (pKay рКаг, рКаз). If you have a di-or triprotic buffer, state below whether you see evidence of this in the form of your pH curve. If you do not see evidence of this, explain why this should be the case.
Answers
If the buffer is not prepared correctly or is not at the optimal pH, it may not exhibit these regions of stability, resulting in a flat pH curve.
Distilled water has a neutral pH of 7.0, which means that it is neither acidic nor basic. When an acid is added to distilled water, it can quickly change the pH of the solution. This is because distilled water does not have any buffering capacity, meaning it does not contain any molecules that can react with the acid to neutralize its effect on the pH.
On the other hand, a buffer solution contains a weak acid and its conjugate base, which can resist changes in pH when an acid or base is added. The buffer molecules can react with the acid, thereby maintaining the pH of the solution within a certain range. This is why the pH of a buffer solution is less sensitive to the addition of an acid than distilled water.
Buffers based on di- or triprotic acids can have multiple pH regions over which they are stable. This is because these buffers have more than one pKa value, which corresponds to the dissociation of each proton from the acid. If a di- or triprotic buffer is used, the pH curve may exhibit multiple plateaus or regions of stability, corresponding to each pKa value. However, if the buffer is not prepared correctly or is not at the optimal pH, it may not exhibit these regions of stability, resulting in a flat pH curve.
To learn more about pH visit;
brainly.com/question/15289741
#SPJ11
If the buffer is not prepared correctly or is not at the optimal pH, it may not exhibit these regions of stability, resulting in a flat pH curve.
Distilled water has a neutral pH of 7.0, which means that it is neither acidic nor basic. When an acid is added to distilled water, it can quickly change the pH of the solution. This is because distilled water does not have any buffering capacity, meaning it does not contain any molecules that can react with the acid to neutralize its effect on the pH.
On the other hand, a buffer solution contains a weak acid and its conjugate base, which can resist changes in pH when an acid or base is added. The buffer molecules can react with the acid, thereby maintaining the pH of the solution within a certain range. This is why the pH of a buffer solution is less sensitive to the addition of an acid than distilled water.
Buffers based on di- or triprotic acids can have multiple pH regions over which they are stable. This is because these buffers have more than one pKa value, which corresponds to the dissociation of each proton from the acid. If a di- or triprotic buffer is used, the pH curve may exhibit multiple plateaus or regions of stability, corresponding to each pKa value. However, if the buffer is not prepared correctly or is not at the optimal pH, it may not exhibit these regions of stability, resulting in a flat pH curve.
To learn more about pH visit;
brainly.com/question/15289741
#SPJ11
What foods of the aztec found their way into mayan cooking?.
Answers
Avocados and tomatoes were mainly eaten by the Aztecs and Maya.
How did Mayans cook their food?"Mayans cooking method includes digging a shallow pit, lining it with stones or clay balls.
Avocados and tomatoes were mainly eaten by the Aztecs and Maya, with different types of fruit. Corn was made into a kind of porridge, called atole in Mesoamerica and capita in Inca territory.
Avocados and tomatoes were mainly eaten by the Aztecs and Maya.
Learn more about Mayan cooking here:
https://brainly.com/question/1979880
#SPJ1
Chemical sedimentary rocks form from materials ______________________.a. Carried in solutionb. Too fine to see without a microscopec. That form weak bonds with oxygen.d. All of the above.
Answers
Chemical sedimentary rocks form from materials carried in solution. These rocks result from the precipitation of minerals from water, which can occur due to evaporation or changes in temperature and pressure. The microscope mention aren't relevant to this specific answer, and weak bonds with oxygen do not necessarily define the formation of chemical sedimentary rocks.
Chemical sedimentary rocks form from materials that are carried in solution, such as minerals dissolved in water. These minerals are typically transported by water, wind, or ice, and are then deposited in layers, where they form sedimentary rocks. These rocks are typically composed of minerals that form weak bonds with oxygen, such as calcite or gypsum. Under a microscope, these minerals can often be seen as small crystals or grains. So, the answer to your question is "a. Carried in solution", as chemical sedimentary rocks are formed from dissolved materials that are deposited and then solidify into rock formations. This answer can be supported by the fact that the other options do not fully describe the formation of chemical sedimentary rocks.
To know more about sedimentary rocks visit:
https://brainly.com/question/29771190
#SPJ11
Chemical sedimentary rocks form from materials that are carried in solution, too fine to see without a microscope, and form weak bonds with oxygen. The correct option is B.
These rocks are formed when minerals precipitate from a solution, usually due to changes in temperature or pressure. Examples of chemical sedimentary rocks include limestone, halite, and gypsum. Limestone is formed from the accumulation of calcium carbonate shells and skeletons of marine organisms. Halite and gypsum are formed from the evaporation of salty water. These rocks are important because they contain valuable minerals that are used in various industries such as construction, agriculture, and manufacturing. In addition, studying these rocks can provide insight into past environments and climate change. Therefore, chemical sedimentary rocks play an important role in both our economy and our understanding of the Earth's history.
To know more about sedimentary rocks visit:
https://brainly.com/question/29771190
#SPJ11
A weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has
what volume at -40.0 °C assuming pressure is held constant?
Answers
Answer:
17.1 Liters
Explanation:
It's a gas law question (more specifically a Charles's Law question). Formula is V1/T1 = V2/T2. You're given V1 and T1 and T2. However, in order to use the equation, temperature needs to be in Kelvins (by subtracting the degrees C from 273) for the numbers to work (among other reasons, the 0 degrees C will always give you an answer of zero or undefined). Placing all temps in kelvins makes the answers come out right. So 20L/273K = xL/233K gives you the answer when you cross-multiply.
Considering the Charles's law, a weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has 17.07 L at -40.0 °C, assuming pressure is held constant.
The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.
Charles's law is one of the gas laws. It relates the volume and the temperature of a certain quantity of ideal gas, kept at a constant pressure.
This law states that, at constant pressure, the volume of a gas is directly proportional to its temperature. In other words, for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.
Mathematically, Charles's law says that the quotient that exists between the volume and the temperature will always have the same value:
\(\frac{V}{T}=k\)
Being an initial state 1 and a final state 2, it is true:
\(\frac{V1}{T1}=\frac{V2}{T2}\)
In this case, you know:
V1= 20 LT1= 0 C=273 KV2= ?T2= -40 C= 233 KReplacing:
\(\frac{20 L}{273 K}=\frac{V2}{233 K}\)
Solving:
\(V2=233 K x\frac{20 L}{273 K}\)
V2=17.07 L
Finally, a weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has 17.07 L at -40.0 °C, assuming pressure is held constant.
Learn more:
https://brainly.com/question/4147359?referrer=searchResultsWhat types of radiation cause the parent isotope to change into a different element?
Answers
Answer:
Beta decay is most common in elements with a high neutron to proton ratio. Gamma decay follows the form: In gamma emission, neither the atomic number or the mass number is changed. A high energy gamma ray is given off when the parent isotope falls into a lower energy state.
Explanation:
pls mark me as brainliest
The sum of the atomic masses of all the atoms in a compound is called the
Answers
the motion of this wave vibrates up and down.
a primary wave
b. secondary wave
c. transverse wave
Answers
Answer:
the answer is c). transverse wave
Draw the structure(s) of the major organic product(s) of the following reaction. 1. LiAlH4 / dry Et O -H 2. aqueous HCI • You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu
Answers
Structure and the reaction is in the attached photo.
Amides, RCONR'2, can be reduced to the amine, RCH2NR'2 by conversion of the C=O to -CH2-. Amides can be reduced by LiAlH4 but not the with the less reactive NaBH4. Some of the reagents are LiAlH4 / ether solvent, followed by water.
This reduction reaction is different from the different to that of other C=O compounds which reduce to alcohols like in esters.
Lithium aluminium hydride (LiAlH4) and sodium borohydride are the two most frequent sources of the hydride nucleophile (NaBH4).
The presence of a polar metal-hydrogen bond in these reagents acts as a source of hydride rather than the hydride anion, which is absent during this reaction. Since the Al-H bond in LiAlH4 is more polar and aluminium is less electronegative than boron, LiAlH4 is a more potent reducer.
To know more about Lithium aluminium hydride here
https://brainly.com/question/17126469
#SPJ4
In the first distillation this week, which component of the original solvent mixture makes the larger contribution to the vapor pressure of the mixture?.
Answers
In the first distillation this week, Hexane from the original solvent makes a larger contribution to the vapor pressure of the mixture.
In between hexane and toluene, the hexane will have more vapor pressure contribution in the solution. The boiling point of hexane is much lower than toluene. Therefore, it will evaporate easily at low temperatures and start exerting pressure on the solution.
Hence between hexane and toluene, because of more vapor pressure of hexane and lower boiling point, it will easily evaporate and exerts pressure.
Therefore, from the original solvent, hexane makes a larger contribution to the vapor pressure of the mixture.
To learn more about vapor pressure and hexane, visit: https://brainly.com/question/28206662
#SPJ4
for number less than 0.1, such as 0.06, the zeros to the right of the decimal point but before the first nonzero digit
Answers
For the number less than 0.1 such as 0.006, the zeroes to the right of the decimal point but before the first non zero digit show the decimal place of the first significant digit.
The number that is given as digits is established using significant figures.Any two non-zero digits that are separated by a zero are significant figure.Every zero that is both to the right and left of a non-zero digit and the decimal point is not significant figure. The quantity of significant figures frequently reveals the degree of measurement accuracy. From the first non-zero digits in the figure, we may determine the number of significant figures.There is only one significant figure in the provided number 0.06. The decimal place of the first digit is indicated by the zeros that appear to the right of the decimal point but before the first non-zero digit.
Learn more about significant figure here:
https://brainly.com/question/11151926
#SPJ9
compared to bromination, the of an alkane is not particularly selective. alkyl radical formation is for chlorination, which causes the transition state to be less dependent on the stability of the free radical that results from hydrogen abstraction. multiple choice question.
Answers
The bromination of an alkane, compared to the radical formation for chlorination takes place at a slower rate.
Alkanes are organic group of compounds that contains an aldehyde in their first carbon atom. Bromination and chlorination are the replacement of hydrogen group with a halogen group, such as bromine or chlorine.
As we know that halogenation involves the formation of a carbon-halogen bond. The halogenation will surely depend on the carbon-halogen strength. The more powerful the bond is the slower it will take place.
Bond formation energy of C−Cl is higher than that of C−Br bond. So, the ease of bromination is lower than the ease of chlorination. As chlorine is a more electro negative ion it gets dissociates easily.
Learn more about halogenation from,
https://brainly.com/question/14703081?referrer=searchResults
#SPJ4
If a technician finds that the amount concentration of NaAu(CN)2(aq) is 0.220 mol/L, then the concentration of the cyanide ion, CN-(aq) would be ______ mol/L
Answers
The concentration of the cyanide ion, CN-(aq) would be 0.440 mol/L (assuming the stoichiometry of the reaction).
What is the stoichiometry of the reaction between NaAu(CN)2(aq) and CN-(aq)?The stoichiometry of the reaction is 1:2, meaning that for every 1 mole of NaAu(CN)2(aq) consumed, 2 moles of CN-(aq) are produced.
If the technician finds that the amount concentration of NaAu(CN)2(aq) is 0.550 mol/L, what would be the concentration of gold ion, Au+(aq), assuming the stoichiometry of the reaction?Assuming the stoichiometry of the reaction, the concentration of Au+(aq) would be 0.550 mol/L.
Since NaAu(CN)2 dissociates to form one Au(CN)2- ion and two CN- ions, the concentration of CN- ions would be double the concentration of NaAu(CN)2. Therefore, the concentration of CN-(aq) would be 0.220 mol/L x 2 = 0.440 mol/L.
Learn more about cyanide ion here:
https://brainly.com/question/29643748
#SPJ1
pick up lines solid,liquid,gas and plasma.
Answers
Matter generally exists in three different physical states, namely solid, liquid and gaseous state. The plasma is defined as the fourth state of matter.
What are states of matter?The matter is composed of very minute particles which cannot be seen with our eyes. It can be classified into different categories on the basis of the state in which they exist. These are called states of matter.
In solids, particles are tightly packed and they have a fixed volume and shape. In liquids, particles are less tightly packed as compared to solids and they take the shape of the vessel in which they are kept.
In gases, particles can move freely and they do not have a fixed volume nor a shape. A plasma is an electrically charged gas and they also do not have a fixed volume nor a shape.
Thus, solid, liquid, gas and plasma are states of matter.
To know more about states of matter, visit;
https://brainly.com/question/1134312
#SPJ1
pretty please answer this
Answers
Answer:
c? im pretty sure.
Explanation:
The highest number is 1.6
How many grams of carbon are in 1.000mole of carbon?
Answers
Answer:
one mole of carbon would have a mass of 12.011 grams
Answer:
One mole of Carbon would have a mass of 12.011 grams.
Explanation:
I hope I helped! :)
Why are isotopes with short half-lives not useful for dating very old rocks?
-because not enough of the parent isotope remains to measure accurately
-because not enough of the daughter product has formed to be detectable
-because neither the parent isotope nor the daughter product will be detectable
-because very old rocks would never have contained these isotopes
Answers
Answer:
The radioactive isotopes within these brains typically record the ages of the grains-not the time when the sedimentary rock was formed, making it difficult to date using radiometric dating. The half-life of U-235 is 704 million years.
Explanation:
hope this helps but if i'm wrong then i'm sorry..
Answer:
D
Explanation:
Very old rocks would be been formed before said isotopes with short half-lives. We're thinking of a very long geological time. The original rock might be rock C, then years and years later rock Y would be measured. Y can't match C since there's too much unknowns in between.
what is mean by constituent assembly
Answers
Answer:
its a body or assembly of popular elected represenatives
Explanation:
which the purpose of this is to form a representative democracy
hope this helps
Estimate the percent ionic character of the co bond. (note that the electronegativity of c is 2.5 and that of o is 3.5.)
Answers
From the calcuation, the percent ionic character of the bond is 70%
What is percent ionic character?The term percent ionic character has to do with the degree of ionic bonding that is contained in a compound. It can be estimated from the electronegativity of each element.
We can use the formula; 100(1 - e^(-ΔEN² / 4))
EN = χB − χA * 100/1
EN = 3.5 - 1.5 = 1
100(1 - e^(-1)^2/4)
= 70%
Learn more about percent ionic character:https://brainly.com/question/7034446
#SPJ1
Answer: 25
Explanation:
The electronegativity of a C
atom is 2.5, and the electronegativity of an O
atom is 3.5. The absolute value of the electronegativity difference is
electronegativity difference= |2.5−3.5|
= 1.0 = 25%
Note the trend between the points in the bottom left region of the chart. According to this trend, the percent ionic character of a bond with a dipole moment 1.0 is approximately 25 %
1. Calculate the amount of moles in 57. 6 Liters of carbon dioxide.
2. Calculate the volume of hydrogen if you have 12. 1 moles of Hydrogen
Answers
1. 2.57 moles is present in 57. 6 Liters of carbon dioxide.
2. 271.04 liters volume of hydrogen if you have 12. 1 moles of Hydrogen
What is molar volume at STP?Assuming the condition given is STP the molar volume of a gas at STP (Standard Temperature and Pressure) is equal to 22.4 L for 1 mole of any ideal gas at a pressure equal to 1.00 atm and temperature equal to 273.15 K.
so using above statement
1)number of moles *22.4= total volume
n* 22.4=57.6
n=2.57 moles
2)number of moles *22.4= total volume
(12.1)*(22.4)=total volume
total volume =271.04 liters
To know more about Hydrogen click below:
https://brainly.com/question/29765115#
#SPJ4
What MASS of NaCl are required to make 2.69L of a 0.14M solution?Use the correct abbreviation for the UNITS
Answers
To solve this problem, let's use the definition for molarity:
Replacing the values of the problem:
Now, to find the mass, we multiply by the molecular weight of NaCl. (Which is about 58.44g/mol)
The answer is approximately 22.2g of NaCl
What happens when a liquid becomes a gas?
A. Nothing happens.
B. It changes volume but not shape.
C. It changes shape and volume.
D. It changes shape but not volume.
SUBND
Answers
Answer:
Answere-d.
Explanation:
it changes shape but not volume.
what does a proton and neutron have in common
Answers
Answer:Both protons and neutrons have a mass of 1
Explanation:
Answer:
Protons and neutrons are both subatomic particles, which means they are both components of atoms. Protons and neutrons are found in the nucleus of an atom. They both have mass of 1 amu.
Explanation:
HELP NEEDED URGENTLY PLEASE
Answers
part a.
The partial pressure of hydrogen gas in the final state is 366.67 torr.
part b.
the partial pressure of nitrogen gas in the final state is 116.67 torr.
part c.
the total pressure in the final state is 483.34 torr.
How do we calculate?a.
initial volume of hydrogen gas = 4.00 L
initial pressure = 550 torr.
P1V1 = P2V2
(550 torr)(4.00 L) = P2(6.00 L)
2200 torr = P2(6.00 L)
P2 = 2200 torr / 6.00 L
P2 = 366.67 torr
b.
initial volume of nitrogen gas = 2.00 L,
initial pressure = 350 torr.
P1V1 = P2V2
(350 torr)(2.00 L) = P2(6.00 L)
700 torr = P2(6.00 L)
P2 = 700 torr / 6.00 L
P2 = 116.67 torr
c.
Total pressure = Partial pressure of H2 + Partial pressure of N2
Total pressure = 366.67 torr + 116.67 torr
Total pressure = 483.34 torr
Learn more about pressure at:
https://brainly.com/question/28012687
#SPJ1