What is the equation for photosynthesis?

Answers

Answer 1

Answer: the process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

Explanation:


Related Questions

How many kilpgrams are in 2.71x10^22 molecules of CO2

Answers

Answer:

mass of 1 molecule of CO2=44 g

mass of 2.71*10^22 of CO2=2.71*10^22*44=1.2*10^24g

now to convert grams into kilogram we know that

1000 g=1kg

1.2*10^24=1.2*10^24/1000=1.2*10^21

According to Avogadro's number concept,there are 1.979×10\(^-3\) kilograms in 2.71 ×10²² molecules of CO₂.

What is Avogadro's number?

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .

According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number. Mass is calculated as, number of molecules/Avogadro's number×molar mass

Substitution in above formula gives, mass=2.71×10²²/6.023×10²³×44=1.979 g or 1.979×10\(^-3\) kg.

Thus, there are  1.979×10\(^-3\) kg in 2.71×10²² molecules of carbon dioxide.

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ClO(4)− Express your answer as a chemical formula.

Answers

ClO(4)− is regarded as perchlorate ion and are produced commercially in most situations as salts via industries and in the laboratory.

What is Perchlorate ion?

This ion is referred to as a monovalent inorganic anion and is obtained by deprotonation of perchloric acid. It is composed of chlorine and oxygen atoms in the ratio 1 to 4 respectively.

This has  32 valence electrons available in the Lewis structure and is used in the commercial production of solid rocket fuel.This ion has a molar mass of 99.451 g mol−1 and is used in different processes such as an oxidizer and to control static electricity during the process of food preservation in industries.

Therefore ClO₄− is also regarded as perchlorate ion and is the most appropriate choice.

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Write the formula for the ionic compound formed from each pair of elements aluminum and selenium.

Answers

The formula for the ionic compound formed from aluminum and selenium is Al₂Se₃.

The compound is formed by the transfer of electrons from aluminum to selenium, resulting in the formation of positively charged Al³⁺ ions and negatively charged Se²⁻ ions. The number of atoms in the resulting compound is determined by the need to balance the charges of the ions. Since aluminum has a +3 charge and selenium has a -2 charge, two aluminum atoms, and three selenium atoms combine to form Al₂Se₃.

I hope this helps! Let me know if you have any further questions.

How many moles of calcium chloride are there when you have 55.5 grams of calcium chloride(CaCl2)

Answers

Answer:

0.5mol

Explanation

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How many moles of calcium chloride are there when you have 55.5 grams of calcium chloride(CaCl2)

star_____ has the greatest absolute brightness ​

Answers

Answer:

Star A would have the greater absolute brightness. This is because absolute brightness finds out the actual brightness of a star at a standard distance from Earth. If Star A is twice as far from Earth as Star B but they still both appear to have the same amount of brightness.

Which of the following pairs exhibit an ion-dipole interaction? a. CH_3OH and Na^+ b. Cl^- and K^+ c. CH_3CH_2CH_2CH_2CH_3 and CH_3CH_2CH_2CH_2COOH d. CH_3CH_2OH and H_2O

Answers

Answer:

a. CH_3OH and Na^+

Explanation:

Ion-dipole interaction is the forces of attraction existing between a polar compound and an ion. This particular type of ion-dipole attraction occurs between an electrostatic attraction of an ion and a dipole molecule.

From the given example, CH3OH is a polar compound, and Na^+ is an ion. Therefore, that is the only pair that exhibit the characteristics of an ion-dipole interaction.

How many CL are in a L

Answers

Answer:

100

Explanation:

How is the light emitted by an atom related to its electron configuration?A. Light is produced when an electron moves from a higher to a lower energy level. The color of the light (as we see it) depends on the amount of energy emitted by the electron.B. Light is produced when an electron moves from a lower to a higher energy level. The color of the light (as we see it) depends on the amount of energy emitted by the electron.C. Light is produced when a proton moves from a higher to a lower energy level. The color of the light (as we see it) depends on the amount of energy emitted by the electron.D. Light is produced when a proton moves from a lower to a higher energy level. The color of the light (as we see it) depends on the amount of energy emitted by the electron.

Answers

Answer:

Light is produced when an electron moves from a higher to a lower energy level. The color of the light (as we see it) depends on the amount of energy emitted by the electron.

Explanation:

According to the Bohr's model of the atom, energy is given out by an atom when an electron moves from a higher to a lower energy level. The energy of the emitted light is equal to the energy difference between the two energy levels.

Hence ;

∆E= E2 - E1

Where;

E2 = energy of the higher energy level

E1 = energy of the lower energy level.

By supplying light of various frequencies and observing the frequency/wavelength of light emitted by a particular atom, its electron configuration can be determined.

When using PCR to study DNA, primers attach to the exposed base pairs and begin to form double-stranded DNA. What stage of the process does this MOST accurately describe

Answers

The stage that this most accurately describes while using the PCR is the initiation of DNA synthesis, also known as the denaturation stage.

What occurs in the denaturation stage?

In the denaturation stage of Polymerase Chain Reaction (PCR), the double-stranded DNA template is heated to a high temperature to separate the two complementary strands and create single-stranded DNA. The denaturation stage is the first step in the PCR cycle.

In this stage, the heat-stable DNA polymerase denatures the DNA and the primers anneal to the complementary single-stranded template. This marks the beginning of the extension stage, where the DNA polymerase synthesizes new complementary strands along the template DNA.

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Please Final Exam Question What is the location of the highest energy electron in a neutral, ground-state sodlum atom?
energy level 1
energy level 2
energy level 3
energy level 4

Answers

Answer: third energy level

Explanation: In a sodium atom, the highest-energy principal energy level containing electrons is the third energy level, and that energy level contains one electron.

calculate the volume of hydrogen in the reaction of 73 grams of zinc and 73 grams of hydrochloric acid (under normal conditions) please help

Answers

The volume of hydrogen gas produced in the reaction of 73 grams of zinc and 73 grams of hydrochloric acid (under normal conditions) is approximately 22.4 liters.

To calculate the volume of hydrogen gas produced in the reaction of zinc and hydrochloric acid, we need to use the principles of stoichiometry and the ideal gas law.

First, let's write the balanced chemical equation for the reaction between zinc (Zn) and hydrochloric acid (HCl):

Zn + 2HCl →\(ZnCl_2\)+ H2

From the equation, we can see that one mole of zinc reacts with two moles of hydrochloric acid to produce one mole of hydrogen gas. To determine the number of moles of zinc and hydrochloric acid, we need to convert the given masses into moles.

The molar mass of zinc (Zn) is approximately 65.38 g/mol, so 73 grams of zinc is equal to:

73 g Zn * (1 mol Zn / 65.38 g Zn) ≈ 1.116 mol Zn

Similarly, the molar mass of hydrochloric acid (HCl) is approximately 36.46 g/mol, so 73 grams of HCl is equal to:

73 g HCl * (1 mol HCl / 36.46 g HCl) ≈ 2.002 mol HCl

According to the balanced equation, the reaction produces one mole of hydrogen gas for every two moles of hydrochloric acid. Therefore, since we have 2.002 moles of HCl, we expect to produce half that amount, or approximately 1.001 moles of hydrogen gas.

To calculate the volume of hydrogen gas, we can use the ideal gas law, which states:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. In this case, we assume the reaction is conducted under normal conditions, which means a pressure of 1 atmosphere and a temperature of 273.15 Kelvin.

Rearranging the equation to solve for V, we have:

V = nRT / P

Substituting the values, we get:

V = (1.001 mol) * (0.0821 L·atm/(mol·K)) * (273.15 K) / (1 atm) ≈ 22.4 L

Therefore, the volume of hydrogen gas produced in the reaction is approximately 22.4 liters.

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Which statement identifies a similarity between sociology and anthropology?

A. Both disciplines are part of the humanities.
B. Both disciplines involve fieldwork.
C. Both disciplines focus solely on present societies.

Answers

Answer:

option c maybe...... comment and tell your country

Guysss how to explain nuclear chemistry? And define nuclear chemistry ?

Answers

Answer:

How do amoeba respire.

Define Diffusion.

How many molecules are in
5.657g H2SO4?

Answers

There are approximately 3.47 x 10²² molecules in 5.657g H₂SO₄.

To calculate the number of molecules in 5.657g H₂SO₄, we need to use the Avogadro's number and the molar mass of H₂SO₄.

The molar mass of H₂SO₄ is 98.079 g/mol.

We need to calculate the number of moles of H₂SO₄:

Number of moles = mass/molar mass

                             = 5.657g / 98.079 g/mol

                            = 0.05767 mol.

Then, we can use Avogadro's number, which is 6.022 x 10²³ molecules/mol, to find the number of molecules:

Number of molecules = number of moles x Avogadro's number

                                   = 0.05767 mol x 6.022 x 10²³ molecules/mol

                                    = 3.47 x 10²² molecules

To calculate the number of molecules in a given sample of a substance, you need to use the Avogadro's number, which is 6.022 x 10²³ molecules/mol. This means that one mole of a substance contains 6.022 x 10²³ molecules.

We are given the mass of H₂SO₄, which is 5.657 g. To calculate the number of molecules, we first need to determine the number of moles of H₂SO₄ in the given sample. The molar mass of H₂SO₄ is 98.08 g/mol. So, the number of moles of H₂SO₄ can be calculated as follows:

moles = mass / molar mass

moles = 5.657 g / 98.08 g/mol

moles = 0.0576 mol

Now, we can use the Avogadro's number to determine the number of molecules of H₂SO₄ in 0.0576 moles:

number of molecules = moles x Avogadro's number

number of molecules = 0.0576 mol x 6.022 x 10²³ molecules/mol

number of molecules = 3.47 x 10²² molecules

As a result, in 5.657 g of the material, there are roughly 3.47 x 1022 molecules of H₂SO₄.

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Magnesium hydroxide reacts with chlorine to form magnesium chloride,
magnesium chlorate and water. How many grams of magnesium hydroxide is
needed to yield 8.00 moles of magnesium chlorate?
77.8 g Mg(OH)2
9178.1 g Mg(OH)2
2799.6 g Mg(OH)2
.823 g Mg(OH)2
How many grams of sodium sulfato pro

Answers

The grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g. None of the options provided match the calculated value of 466.64 g.

To determine the grams of magnesium hydroxide (Mg(OH)2) needed to yield 8.00 moles of magnesium chlorate (Mg(ClO3)2), we need to consider the balanced chemical equation for the reaction between magnesium hydroxide and chlorine.

The balanced equation is as follows:

2 Mg(OH)2 + 6 Cl2 → 2 Mg(ClO3)2 + 2 H2O

From the balanced equation, we can see that 2 moles of Mg(OH)2 react with 6 moles of Cl2 to produce 2 moles of Mg(ClO3)2.

Therefore, the stoichiometric ratio is 2 moles of Mg(OH)2 : 2 moles of Mg(ClO3)2.

To calculate the grams of Mg(OH)2 needed, we can use the stoichiometric ratio and the given moles of Mg(ClO3)2.

Given:

Moles of Mg(ClO3)2 = 8.00 moles

Using the stoichiometric ratio, we have:

8.00 moles Mg(ClO3)2 × (2 moles Mg(OH)2 / 2 moles Mg(ClO3)2) = 8.00 moles Mg(OH)2

To convert moles to grams, we need to multiply by the molar mass of Mg(OH)2.

The molar mass of Mg(OH)2 = (24.31 g/mol) + (2 * 16.00 g/mol) = 58.33 g/mol

Grams of Mg(OH)2 = 8.00 moles Mg(OH)2 × 58.33 g/mol = 466.64 g

Therefore, the grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g.

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The question is listed in the image attached.

The question is listed in the image attached.

Answers

The answer is 18.01528

How are new elements made and named?

Answers

Answer:

Science textbooks around the world have become suddenly out of date. Four new chemical elements have been added to the periodic table. A big decision now lies ahead - elements 113, 115, 117 and 118 need to be given their official names and symbols.

New elements can be named after a mythological concept, a mineral, a place or country, a property or a scientist. The names have to be unique and maintain "historical and chemical consistency" . This means a lot of "-iums".

"They're Latinising the name," explains chemist Andrea Sella of University College London. "The most recent tradition has been to name them after places or after people." The places chosen tend to be where the element was discovered or first manufactured. The Swedish village of Ytterby has managed to get four named after it (ytterbium, yttrium, erbium and terbium).

No-one has yet named an element after themselves but many elements are named in tribute to important scientists. Albert Einstein was given einsteinium. This can also be a way of righting the wrongs of the past. "Lise Meitner was really the chemist who spotted nuclear fission but she was never really recognised for it because she was Jewish and a woman," says Sella. "To be able to give an element a name that reminds us of her is I think greatly important."

The naming process isn't quick. The scientists who discovered them will start things off by proposing a name. But it will be down to the International Union of Pure and Applied Chemistry (IUPAC) to approve it. A special division of the US-based group has to accept the proposal. There is then a public review period of five months before the IUPAC council gets the final approval. Once it's ready, the name is announced in the scientific journal Pure and Applied Chemistry .

Scientists sometimes get creative. Mythical names have proved popular. Promethium was named after a character from a Greek legend who stole fire from the gods to give to humans and was punished by being chained to rock so an eagle could feed on his liver. The name was meant to reflect the fact that synthesising new elements often requires sacrifice.

There is hidden meaning in the table - as in the naming of praseodymium and neodymium. They replaced didymium - wrongly thought to be an element but in fact a mixture of the two. "The reason I like them is because they're called the green twin and the new twin," says Sella. "Didymium was named after [the Greek for] twin but in fact it also means testicles."

Naming an element is not just about functionality. "There's a tremendous romance to this," he adds. "Names are always important."

Humans have used systems of measurements for thousands and thousands of years,
True
False

Answers

Answer:

True "hope this helps"

Explanation:

3. How many grams of oxygen are required to completely react with 240g of C₂H6?

Answers

Approximately 766.08 grams of oxygen are required to completely react with 240g of C₂H₆.

To determine the amount of oxygen required to completely react with 240g of C₂H₆ (ethane), we need to set up a balanced chemical equation for the combustion of ethane.

The balanced equation for the combustion of ethane is as follows:

C₂H₆ + O₂ → CO₂ + H₂O

From the balanced equation, we can see that the stoichiometric ratio between C₂H₆ and O₂ is 1:3. This means that for every one mole of C₂H₆, three moles of O₂ are required for complete combustion.

To calculate the amount of oxygen required, we need to convert the given mass of C₂H₆ to moles using its molar mass, and then use the stoichiometric ratio to determine the moles of O₂ required. Finally, we can convert the moles of O₂ back to grams using the molar mass of oxygen.

The molar mass of C₂H₆ is calculated as follows:

(2 x atomic mass of carbon) + (6 x atomic mass of hydrogen)

(2 x 12.01 g/mol) + (6 x 1.01 g/mol) = 30.07 g/mol

Now, we can proceed with the calculation:

Calculate the moles of C₂H₆:

moles of C₂H₆ = mass of C₂H₆ / molar mass of C₂H₆

moles of C₂H₆ = 240 g / 30.07 g/mol ≈ 7.98 mol

Determine the moles of O₂ using the stoichiometric ratio:

moles of O₂ = moles of C₂H₆ x (3 moles of O₂ / 1 mole of C₂H₆)

moles of O₂ = 7.98 mol x 3 ≈ 23.94 mol

Convert moles of O₂ to grams:

mass of O₂ = moles of O₂ x molar mass of O₂

mass of O₂ = 23.94 mol x 32.00 g/mol = 766.08 g

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Part B
Next, you’ll test your hypothesis from part A by examining the reaction times of vinegar and baking soda in water at four different temperatures. You’ll carry out the reaction using water at room temperature (about 25°C), 40°C, 60°C, and 80°C. Make sure that you use the same amounts of vinegar and baking soda for all three three trials.

Gather all the materials, and perform these steps for each trial:

Heat at least
cup (60 milliliters) of water to the required temperature (refer to the data table). Water may be heated on a stove, on a hot plate, or in a microwave oven.
Measure and record the actual temperature of the water.
Measure 1 tablespoon (15 milliliters) of the water into the cup.
Add
teaspoon (1.5 grams) baking soda to the water, and stir until it is dissolved. The solution will be clear.
Measure 1 tablespoon (15 milliliters) of vinegar, but do not pour it into the cup yet.
Very quickly, do all of the following:
a. Pour the measured vinegar into the cup.
b. Start the stopwatch.
c. Stir or carefully swirl the substances in the cup.
The chemical reaction will produce bubbles. You’ll be able to see the bubbles and hear them pop. Watch and listen for when the reaction stops. When it looks and sounds like it has finished, stop the stopwatch.
Record the reaction time in the data table.
Discard the solution down the drain, and rinse the cup.
Repeat steps 1–9 of this procedure, doing three trials for each water temperature. Record the average temperature and reaction time for each set of the three trials. Read this math review to know how to calculate average of a data set.

Answers

The reaction time decreases as the temperature increases of the reaction mixture increases.

A sample record of results is:

Temperature (°C) Trial 1 Trial 2 Trial 3 Average25°C 11 seconds 11 seconds 11 seconds 11 seconds40°C 8 seconds 8 seconds 8 seconds 8 seconds60°C 5 seconds 5 seconds 5 seconds 5 seconds80°C 3 seconds 3 seconds 3 seconds 3 seconds

What is the effect of an increase in temperature on reaction time?

An increase in temperature leads to an increase in reaction rate or a decrease in reaction time.

The increase in temperature provides more thermal energy to the reactant molecules, which leads to an increase in the average kinetic energy of the molecules. As a result, more reactant molecules have sufficient energy to overcome the activation energy barrier and undergo successful collisions, leading to an increased reaction rate.

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Emperical formula of carbon dioxide

Answers

Empirical formula of Carbon dioxide :

\( \mathrm{CO_2}\)

What is the mole fraction of a acetyl bromide

What is the mole fraction of a acetyl bromide

Answers

Answer:

Mole fraction(CHCl3)  = 0.681

Mole fraction (CH3COBr) = 0.319

Explanation:

Molar mass(CHCl3) = 12+ 1 + 3*35.5 = 119.5 g/mol

Molar mass(CH3COBr) =  2*12 + 3*1 + 16 + 80 = 123 g/mol

112. g* 1mol/119.5g = 0.9372 mol CHCl3

54. g * 1 mol/123g = 0.4390 mol  CH3COBr

Mole fraction(CHCl3) = 0.9372/(0.9372+0.4390) = 0.681

Mole fraction (CH3COBr) = 0.4390/(0.9372+0.4390) = 0.319

0.681+0.319 =1.000 true

I need this done soon!
What is a saturated solution?

A. A solution with as much dissolved solute as it can hold at a given temperature.
B. A heated solution with more dissolved solute can hold at a lower temperature.
C. A solution that holds less dissolved solute than is possible at a given temperature.
D. A solution that holds as much solvent as possible at all temperatures.

Answers

Answer: A

Explanation:

A saturated solution is a chemical solution that contains the highest bound solvent level. In a saturated solution, the extra solution will not dissolve. Depending on a multitude of variables, the quantity of fluid that can we can add in a solvent to create a saturated solution.

What types of safety procedures need to be followed when handling and transporting nitric acid?

Answers

Answer:

wear safety glasses, a face shield, gloves.

Explanation:

Nitric Acid Safety, Handling & First Aid When handling nitric acid in the workplace, we strongly recommend you wear chemical safety glasses, a face shield for splash protection, gloves, and an approved vapor respirator if adequate ventilation is not available. I found this online. Hope it helps!

Tomato juice containing 7% solids by mass is fed to an evaporator and water is removed at a rate of 500 kg/h. If the concentration is to contain 35% solids, then determine the necessary feed rate.

Answers

Answer:

Feed rate F = 625 kg/h

Explanation:

Given that:

percentage mass of the solids = 7% = 0.07

rate of removal of water W = 500 kg/h

Concetration  C = 35% = 0.35

To fine the feed rate = ???

Using the Overall balance equation,

Suppose: F = W + C

F = 500 + C  ---- (1)

Then, the Solids balance can be computed as:

(0.07)F = (0)500 + (0.35)C

0.07F = 0.35C

C = 0.07F/0.35

C = 0.2F

Now

F = 500 + 0.2F

Collect like terms

F – 0.2F = 500

0.8F = 500

F = 500/0.8

F = 625 kg/h

Therefore, the feed rate F = 625 kg/h

plse help dont understand ​

plse help dont understand

Answers

The origin for Ped is Greek and another example is pedicure.
The origin for the word Cent is French and another example is centimeter.
The origin for Bi is Latin and another example is bilingual.
The origin for the word Ism is greek and another example is racism.
The origin for the word graph is greek and another word is biography.
The origin for the word form is latin and another example is formula.
the origin for the word cycl is greek and another example is bicycle.

give the chemical composition of the followings : Name Chemical Composition Coal gas Water gas Producer gas Natural gas

Answers

Answer:

Below.

Explanation:

Coal gas is a mixture of a variety of gases: inflammable gases including, hydrogen, methane, ethylene, carbon monoxide and volatile hydrocarbons and small amounts of non flammable gases like nitrogen and carbon dioxide.

Water gas consists mainly of carbon monoxide and hydrogen.

Producer gas is similar to water gas and consists mainly of carbon monoxide and hydrogen together with nitrogen and carbon dioxide.

Natural gas occurs naturally and consists mainly of methane with small amounts of other hydrocarbon gases.

A 1.0 mole sample of fluorine gas at 25 °C has an average molecular velocity of 415 m/s. What is the total KE of the gas sample? Report your answer in kilojoules to the nearest tenth.

Answers

The total kinetic energy of the gas sample is 3.3 KJ

What is kinetic energy?

This is the energy possessed by an object in motion. Mathematically, it can be expressed as:

KE = ½mv²

Where

KE is the kinetic energy m is the mass v is the velocity

How to determine the mass of the fluorine gasMolar mass of fluorine gas = 38 g/molMole of fluorine gas = 1 moleMass of fluorine gas = ?

Mass = mole × molar mass

Mass of fluorine gas = 1 × 38

Mass of fluorine gas = 38 g

How to determine the KE of the gas sampleMass (m) = 38 g = 38 / 1000 = 0.038 KgVelocity (v) = 415 m/sKinetic energy (KE) =?

KE = ½mv²

KE = ½ × 0.038 × 415²

KE = 3272.275 J

Divide by 1000 to express in kilojoule

KE = 3272.275 / 1000

KE = 3.3 KJ

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Can someone help me

Can someone help me

Answers

Explanation:

hsbus r did iedj iadj sis aj sis dj akd bzaid ks akr ka he k sits wk do that s

Conduct an experiment to determine the specific heat, c, for unknown metal #1 (under solids tab). Use the formula: c = (q)/(m)(T) where q = heat the metal lost; m = mass of the metal; and T = the change in temperature of the metal (metal and water end at same temperature value). (Note: An assumption in this type of calorimetry problem is that in an ideal system the heat the metal lost = heat the water gained.) Use a set up like you did in the experiment in #2 above to determine how much heat, q, the WATER GAINED and use this value for “q” of the metal, that is, the heat the METAL LOST. Be sure to briefly describe your experiment, record all measurements made, and to show all calculations for determining the specific heat of the metal.

Answers

Answer:

The sand and water end up at the same temperature. The sand consists of material that all has the same specific heat. The relations between temperature change and heat lost by the water and gained by the sand can be written separately as: (1) where and are the specific heats of water and sand, respectively. By assumption, the heat gained

Explanation:

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