Metamorphic means “________________.”
A}to turn into rock
B]to make into minerals
C]to change form
D]to press down

Answers

Answer 1
C) To change form

In Greek metamorphic means 'to change form ' . Hence the answer to this question will be ;

C) To change form


Related Questions

How many moles in 28 grams of CO₂?

Answers

Answer:

I think the answer Is 0.636 mol of CO2!

A student wants to make a fair comparison of the reactivity of the metals with hydrochloric acid.
Name two variables that must be kept constant.

Answers

Answer:

the concentration of the reactants

the temperature in heating

The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

What is hydrochloric acid?

Hydrochloric acid (HCl) is called as the muriatic acid represent the colorless corrosive, also the mineral acid should be strong that contains various industrial used also it should be reacted with an organic base it created the hydrochloride salt.

Therefore, we can conclude that The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

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can someone help me solve the questions below using the data table below please

DATA TABLE:

Mass of flask and vinegar solution- 25.17g
Mass of flask- 15.12g
Volume of vinegar solution (in mL)- 10.00ml
Initial volume of NaOH (in mL)-0.00ml
Final volume of NaOH (in mL)-39.00ml

CALCULATIONS:
Mass of vinegar solution- 10.0503g
Volume of NaOH used in titration (in mL)-39.00ml

can someone help me solve the questions below using the data table below pleaseDATA TABLE: Mass of flask

Answers

The percent by mass of acetic acid in the vinegar is 2.33%.

Below are the steps to solve the given problem using the data table given below:

Step 1: Calculate the mass of the vinegar. Given,Mass of flask and vinegar solution- 25.17gMass of flask- 15.12gMass of vinegar solution = Mass of flask and vinegar solution - Mass of flask= 25.17 g - 15.12 g= 10.05 g

Step 2: Calculate the moles of NaOH used in the titration.Molarity of NaOH solution is 0.1 M.Moles of NaOH = Molarity × Volume of NaOH usedMoles of NaOH = 0.1 M × 39.00 mL (since the initial volume of NaOH is 0.00 mL)Moles of NaOH = 0.0039 moles

Step 3: Determine the moles of acetic acid used in the reaction.The balanced chemical equation for the reaction between NaOH and acetic acid (the main component of vinegar) is given below:CH3COOH + NaOH → CH3COONa + H2OMoles of NaOH = Moles of CH3COOH (since they react in a 1:1 ratio)Moles of CH3COOH = 0.0039 moles

Step 4: Calculate the mass of acetic acid used in the reaction.Molar mass of acetic acid is 60.05 g/mol.Mass of CH3COOH = Moles of CH3COOH × Molar mass of CH3COOH= 0.0039 moles × 60.05 g/mol= 0.234 gStep 5: Calculate the percent by mass of acetic acid in the vinegar.Percent by mass of acetic acid = (Mass of CH3COOH / Mass of vinegar solution) × 100%= (0.234 g / 10.05 g) × 100%= 2.33%.

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Determine the volume of 15.64 grams of iron if its density is 2.27 g/cm3

Answers

Answer:

The answer is

6.89 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\ \)

From the question

mass of iron = 15.64 g

density = 2.27 g/cm³

The volume is

\(volume = \frac{15.64}{2.27} \\ = 6.889867841...\)

We have the final answer as

6.89 cm³

Hope this helps you

Calculate the mass, in grams, of 892 atoms of cesium, cs (1 mol of cs has a mass of 132.91 g).

Answers

The mass of 892 atoms of cesium is approximately 1.197 grams.

To calculate the mass of 892 atoms of cesium, we need to find the molar mass of cesium and multiply it by the number of atoms. The molar mass of cesium (Cs) is 132.91 g/mol.  

First, we find the number of moles of cesium atoms in 892 atoms:
1 mole of Cs = \(6.022 x 10^2^3\) atoms of Cs
So, 892 atoms of Cs = \((892 / 6.022 x 10^2^3)\) moles

Next, we multiply the number of moles by the molar mass to find the mass:
Mass = moles × molar mass
Mass = \((892 / 6.022 x 10^2^3) x 132.91\)g/mol

Calculating this, we find that the mass of 892 atoms of cesium is approximately 1.197 g.

In conclusion, the mass of 892 atoms of cesium is approximately 1.197 grams.

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Which statement is true about percent yield

Answers

The options ? We can’t answer your questions without any options or choices

Which of the following would be the best analogy for an electrochemical gradient across a cellular membrane?1. An electric generator.2. A light bulb.3. A battery.4. A waterfall.5. A water pump.

Answers

The best analogy for an electrochemical gradient across a cellular membrane would be option 3, a battery.

An electrochemical gradient is a difference in the distribution of ions or molecules across a cellular membrane. Like a battery, which has a separation of charge that can be used to generate an electric current, the electrochemical gradient can be used to drive processes such as the movement of ions or the synthesis of ATP (adenosine triphosphate) in cellular respiration.

Option 1, an electric generator, might be a suitable analogy for the process of converting mechanical energy into electrical energy, but it does not fully capture the idea of a separation of charge across a membrane.

Option 2, a light bulb, does not relate to the concept of an electrochemical gradient at all.

Option 4, a waterfall, might be a suitable analogy for the potential energy that can be harnessed from a concentration gradient, but it does not fully capture the role of charge separation in the electrochemical gradient.

Option 5, a water pump, might be a suitable analogy for the active transport of ions across a membrane, but it does not fully capture the role of charge separation in the electrochemical gradient.

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The Scotch broom is an invasive species in California, Oregon and Washington. These shrubs grow quickly after areas that have been cleared of
trees and inhibit reforestation by out-competing native seedling trees. These plants developed a mutation that causes their seed to burst from
their shell when touched by passing animals. As animals brush past these plants, the black dried pods of the Scotch broom explode with a sharp
pop, scattering seeds away from the parent plant.
Which statement below best explains why the Scotch broom is able to out-compete the native plants in that area?
A. Relying on animals to disperse the seeds always results in better reproductive success than other methods of seed dispersion.
B. Specialized seed pods allow seeds to be dispersed farther and into less crowded areas promoting reproductive success.
C. The crackling sound of seed pods exploding promotes reproductive success by attracting the animals that are responsible for scattering
seeds.
D. Genetic mutations have caused the plant to be more resistant to cold temperatures allowing them to survive and reproduce all year
long.

Answers

Based on the illustration, the statement that best explains why the Scotch broom is able to outcompete the native plants in the area would be the specialized seed pods that allow seeds to be dispersed farther and into the less crowded areas.

Reproductive success

Different organisms have different ways of behaving to ensure the survival of their propagules or offsprings.

In the case of the Scotch broom, the ability of the pods holding the seeds to burst open and catapult the seeds far away from the parent plant is a reproductive strategy to ensure that their seeds are well dispersed.

By doing so, the propagules of the plant will reach new areas where they do not exist before and as such, able to spread quite quicker than the native plants.

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Sodium (Na), lithium (Li), and potassium (K) are grouped together in one column on the periodic table. Which property do they share?

Answers

Answer:

They´re pretty reactive whit wather forming hidroxydes, they have the same metal brigthness as well the same electrons valence

Explanation:

This can be for the ubications of the protons to the nucleoid of athom

Fill in the blanks


The _____________ _____________ is the atomic mass rounded to a whole number.

Answers

The mass number is the atomic mass rounded to a whole number, i.e., which is a value that rounds the atomic weight to a near number.

What is mass number?

The expression mass number is used in chemistry to denote the total amount of subatomic particles i.e. atomic protons and neutrons, which are present in a given atom (for example hydrogen has only one proton and one neutron).

Therefore, with this data, we can see that mass number denotes the overall amount of protons and neutrons present in a given atom, which is equal to one in the hydrogen atom

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please help The sun uses nuclear fusion to generate its energy. In the very distant future, the sun will eventually run out of fuel.

A. All the hydrogen and smaller elements will eventually will fuse into larger elements until fusion is longer possible

B. the sun will stop burning once all the atoms have spilt

Answers

Answer:

A

Explanation:

the answer is a because the sun cannot stop burning but will rather burn hotter Then decay amongst the atoms in space

A balloon contains 3.20 L of helium. The pressure is reduced to 59.0 kPa, and the
balloon expands to occupy a volume of 5.50 L. What was the initial pressure exerted on
the balloon?

Answers

Answer:

101.4pKa

Explanation:

Given parameters:

Initial Volume of helium  = 3.20L

Final pressure of helium  = 59kPa

Final volume on helium gas = 5.5L

Unknown:

Initial pressure exerted on the balloon = ?

Solution;

To solve this pressure - volume problem, we simply apply the Boyle's law.

It states that "the volume of a fixed mass gas varies inversely as the pressure changes if the temperature is constant".

  Mathematically;

         P1 V1  = P2 V2

Now, insert parameters and solve;

         P1 x 3.2 = 59 x 5.5

          P1  = 101.4pKa

Uranium hexafluoride is a solid at room temperature, but it boils at 56C. Determine the density of uranium hexafluoride at 60.C and 745 torr.

Answers

Answer: The density of Uranium Hexafluoride at 60 °C and 745 torr is 0.0127 g/ml

Explanation:

Uranium Hexafluoride is only present as gas at 60 °C and 745 torr.

So, we know PV = nRT, from that

n/V = P/ RT = (745 torr)/(62.36 L-torr/mol*K)(337 K) = 0.0354 mol/L.

Density = (352.02 g/mol)(0.0354 mol/L)/(1000 cm³/L) = 0.0127 g/cm³

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Why does the plot show vertical jumps at the melting and boiling points? Solid Liquid Gas - Boiling - Melting Temperature (K)→ Entropy, S

Answers

The vertical jumps in the plot at the melting and boiling points represent the abrupt increase in entropy that occurs during phase transitions from solid to liquid and from liquid to gas.

The plot shows vertical jumps at the melting and boiling points because the transition from one phase to another involves a change in the entropy (S) of the substance. At the melting point, the substance undergoes a phase transition from solid to liquid, resulting in an abrupt increase in entropy. Similarly, at the boiling point, the substance transitions from liquid to gas, leading to another sudden increase in entropy.

The melting and boiling points represent phase transitions where the substance undergoes a change in its physical state. During these transitions, the arrangement and movement of particles change, leading to a significant alteration in entropy.

At the melting point, a solid substance absorbs energy to overcome intermolecular forces and transition into a liquid state. This transition involves an increase in entropy as the particles gain more freedom to move around, leading to a jump in the entropy value on the plot.

Similarly, at the boiling point, a liquid substance absorbs energy to overcome intermolecular forces and transition into a gaseous state. This transition also results in an increase in entropy as the particles gain even more freedom of movement and are dispersed in the gas phase, causing another vertical jump in the entropy value on the plot.

In summary, the vertical jumps in the plot at the melting and boiling points represent the abrupt increase in entropy that occurs during phase transitions from solid to liquid and from liquid to gas.


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is it possible to recover reactants like sugar from a drink mix using heat? Explain your answer.

Answers

Answer:

Yes it is.

Explanation:

If you melted down the sugar, you can clearly use it.

suppose the sample of magnesium used in this lab was contaminated with another metal that does not react with hydrochloric acid. how would this have changed your results?

Answers

If the sample of magnesium used in a lab was contaminated with another metal that doesn't react with hydrochloric acid, then the results obtained in the experiment would be affected.

This is because the data collected during the experiment would reflect the reaction between hydrochloric acid and the contaminated sample instead of pure magnesium. As a result, the following changes in results might have been observed:

1. The mass of the contaminated sample would be higher than the mass of pure magnesium.

2. The rate of reaction between the contaminated sample and hydrochloric acid would be slower than the reaction between pure magnesium and hydrochloric acid.

3. The volume of hydrogen gas collected from the reaction would be lower than the volume of hydrogen gas collected in the reaction between pure magnesium and hydrochloric acid.

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Which of the following is considered quantitative data?

A. Appearance

B. Smell

C. Temperature

Answers

Answer:

Temperature

Explanation:

This is because quantitative data include numerical values for example 10 degrees Celsius. However the others are qualitative data because the research can be described but not with numbers like your appearance is very nice.

Hope this helps :P

Answer:

Quantitative data is the type of data whose value is measured in the form of numbers or counts, with a unique numerical value associated with each data set. Also known as numerical data, quantitative data further describes numeric variables (e.g. How many? How often? How much?)

Explanation:

so its temp

HELP HELP HELP HELP HELP HELP​

HELP HELP HELP HELP HELP HELP

Answers

Answer:

People filter their faucet water to purify it further and to filter out any sediment in the water. It's also to improve taste and remove contaminants and thereby reducing risk of drinking unhealthy tap water

People sieve flour when baking to break apart any clumps of flour from entering the mix. Clumps of flour make it harder the combine and often result in clumps of dry flour in the finished bake which are unpleasant.

Explanation:

The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. The atomic mass and abundance of Cr-53 is 52.941 amu and 9.5%. The atomic mass and abundance of Cr-54 is 53.939 amu and 2.4%. Which is the average atomic mass of chromium?

A.51.94 amu
B.52.00 amu
C.52.19 amu
D.53.94 amu

Answers

Answer:

52.00 AMU

Explanation:

(49.946 * 0.043) + (51.941 * 0.838) + (52.941 * 0.095) + (53.939 * 0.024) = 51.998

Make sure to round, 52.00 AMU.

Why is it important to check multiple sources to understand the rise in global temperatures?

Answers

It is important because some places are bias, some think there is no global warming at all!

what is the solubility of nickel ii hydroxide the ksp of nickel hydroxide ni(oh)2 at 25

Answers

The solubility of nickel II hydroxide is 7.5 x  \(10^-^8\) mol/L at 25°C.

The solubility of nickel II hydroxide can be calculated using the \(K_s_p\) (solubility produc t constant) of nickel hydroxide Ni(OH)2 at 25°C. The \(K_s_p\) of nickel hydroxide is 5.6 x \(10^-^1^6\)at 25°C.

To calculate the solubility, we can use the following equation:


\(K_s_p\) =\([Ni^2^+][OH^-]^2\)

where [\(Ni^2^+\)] and [\(OH^-\)] are the concentrations of nickel ions and hydroxide ions in solution, respectively.

Assuming that all of the nickel hydroxide dissolves in water, the solubility (S) can be calculated by:

S = [\(Ni^2^+\)]= [\(OH^-\)] = sqrt(\(K_s_p\) )

S = sqrt(5.6 x \(10^1^6\) ) = 7.5 x  \(10^-^8\) mol/L

Therefore, the solubility of nickel II hydroxide is 7.5 x \(10^-^8\) mol/L at 25°C.

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Calculate the mass of 2×10^25 molecules of water

Answers

Answer:6.023*10²³ / 2*10²⁵

To find the mass of a one mole of a specific molecule, add the atomic masses of each of its component atoms.\

radioactive radium (226ra ) has a half-life of 1599 years. what percent of a given amount will remain after 100 years?

Answers

After 100 years, approximately 39.78% of the original amount of radioactive radium (226Ra) will remain.

What percentage of a given amount of radioactive radium (226Ra) will remain?

Radioactive decay is an exponential process, and the amount of radioactive material remaining after a certain time can be calculated using the half-life of the substance. For a substance with a half-life of 1599 years, we can use the formula:

\(N(t) = N0 * (1/2)^(t/T)\)

where N(t) is the amount of substance remaining after time t, N0 is the initial amount of substance, T is the half-life of the substance, and t is the time elapsed.

In this case, we want to find the percent of the original amount remaining after 100 years. We can plug in the values:

\(N(t) = N0 * (1/2)^(t/T)\)

\(N(t) = N0 * (1/2)^(100/1599)\)

\(N(t) = 0.3978 * N0\)

So, after 100 years, approximately 39.78% of the original amount of radioactive radium (226Ra) will remain.

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According to kinetic molecular theory, which statement describes one characteristic of an ideal gas system?
1
The distance between gas molecules is smaller than the diameter of one gas molecule.
2
The attractive force between two gas molecules is strong.
3
The energy of the system decreases as gas molecules collide.
4.
The straight-line motion of the gas molecules is constant and random,

Answers

Answer:4

Explanation: I got it right

According to ideal gas law and kinetic molecular theory,the statement which describes  the characteristic of an ideal gas system is that  straight-line motion of the gas molecules is constant and random.

What is ideal gas law?

The ideal gas law is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.

The ideal gas law was proposed by Benoit Paul Emile Clapeyron in the year 1834.He was a physicist and an engineer.It is often written in empirical form.It is called as an ideal gas  equation which is a good approximation of behavior of many gases.It has several limitations.

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Explain the general structure of a molecule that contains the following functional groups:

Ether:

Carboxylic Acid:

Answers

Ether is a functional group that has the following structure: R-O-R', where R and R' are any organic substituents.

This functional group consists of an oxygen atom that is bonded to two carbon atoms, each of which is bonded to an organic substituent.

The oxygen atom in the ether functional group is bonded to two carbon atoms via single bonds, and it has two lone pairs of electrons.

The structures of ether and carboxylic acid?

A molecule that contains an ether functional group would have the general structure: R-O-R', where R and R' represent any organic substituents.

For example, diethyl ether (CH3CH2-O-CH2CH3) is a molecule that contains an ether functional group.

A carboxylic acid is a functional group that has the following structure: R-COOH, where R is any organic substituent.

This functional group consists of a carbonyl group (C=O) that is double-bonded to an oxygen atom (O), and a hydroxyl group (-OH) that is bonded to the same carbon atom as the carbonyl group.

A molecule that contains a carboxylic acid functional group would have the general structure: R-COOH, where R represents any organic substituent.

For example, acetic acid (CH3COOH) is a molecule that contains a carboxylic acid functional group.

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you will be completing the extraction of caffeine with dichloromethane and water. in which solvent will the caffeine be found, and is this the top or bottom layer?

Answers

When the mixture of tea or coffee is added to dichloromethane and water and the mixture is agitated, the caffeine molecules will dissolve in the dichloromethane layer, which is the top layer. This is because caffeine is a non-polar compound that is more soluble in non-polar solvents, such as dichloromethane.

On the other hand, the polar components of the mixture, such as water-soluble organic acids and sugars, will dissolve in the water layer, which is the bottom layer. The two layers can then be separated by draining off the lower aqueous layer, leaving the top organic layer containing the caffeine.

Caffeine can be extracted from a mixture of tea or coffee using dichloromethane and water. Dichloromethane (also known as methylene chloride) is a non-polar solvent, meaning that it does not dissolve well in water, which is a polar solvent.

It's worth noting that extraction is a separation technique that relies on the differential solubility of the components in a mixture. By choosing a suitable solvent system, it is possible to selectively extract a specific compound, such as caffeine, from a complex mixture.

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When calcium reacts with chlorine to form an ionic compound, each metal atom loses electron(s) and each nonmetal atom gains electron(s). there must be calcium atom(s) for every chlorine atom(s) in the reaction.

Answers

When calcium reacts with chlorine, each calcium atom loses 2 electrons, and each chlorine atom gains 2 electrons. There must be one 1 calcium atom for every 2 chlorine atoms in the reaction.

When atoms react, they either lose or gain electron. Atoms do this in order to attain the stable noble gas configuration. Metals are more likely to lose electrons, and non-metals are more likely to gain electrons. Calcium has an atomic number of 20, and its electronic configuration is:

[Ca] = 1s²2s²2p⁶3s²3p⁶4s²

The easiest way for calcium to obtain a stable noble gas configuration is to lose 2 of its electrons, so that it has 18 electrons left. When this happens, calcium becomes a positively charged cation:

Ca ⇒ Ca²⁺ + 2e⁻

Chlorine has 17 electrons with the electronic configuration:

[Cl] = 1s²2s²2p⁶3s²3p⁵

This shows that chlorine only needs one electron to have the stable noble gas configuration. When this happens, chlorine becomes a negatively charged anion:

Cl + 1e⁻ ⇒ Cl⁻

Thus, for calcium to completely react with chlorine, there must be two atoms of chlorine for each carbon atom. This is because calcium loses two electrons, and each chlorine atom only accepts one. Hence:

   Ca²⁺ + 2CL⁻ ⇒ CaCl₂

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Calculate the pH of a solution prepared by mixing 15.0 mL of 0.50 M NaOH and 30.0 mL of 0.50 M benzoic acid solution. (Benzoic acid is monoprotic; its dissociation constant is 6.5 x 10-5.)

Answers

This seems to be very complicated hope you get the answer

Please help and answer this

Please help and answer this

Answers

According to the observations, work of scientist uses evidence while work of an engineer uses a practical approach.

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.

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Which of the following questions can be answered by science? What is the composition of air? Should the driving age be reduced? What is the purpose of our existence on Earth? Should students be allowed to bring toys to school?

Answers

Your answer is A. What is the composition of air?

The question that can be answered by science is What is the composition of air? The correct option is A.

What is science?

Science is a subject that deals with the components of the earth. It has a wide variety of components of earth. Like planets and meteorites. Plants, animals, and other creatures. Nature, trees, and other abiotic factors.

Science gives answers to the secrets of the earth, and they unravel the mysteries of nature and the earth. They solve the mysteries of air, water, and other natural processes.

So the composition of air can be told by science. The air is made up of a mixture of gases. Air is present in the atmosphere. It is needed for breathing, and it is an important component of life because it provides oxygen to the body.

The correct option is A. What is the composition of air?

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