Who discovered Chemical Energy?

Answers

Answer 1

Answer: J Willard Gibbs discovered Chemical Energy

Answer 2

Answer: Chemical Energy was founded by J.Willard Gibbs.Hope this helps.

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A 5.00 L sample of air at 0 C is warmed to 100.0 C. What is the new volume of the air? First, identify V1.

Answers

Answer : The new volume of the air is, 6.83 L

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$(V_1)/(T_1)=(V_2)/(T_2)$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=5.00L\nT_1=0^oC=(0+273)K=273K\nV_2=?\nT_2=100^oC=(100+273)K=373K$

Putting values in above equation, we get:

$(5.00L)/(273K)=(V_2)/(373K)\n\nV_2=6.83L$

Therefore, the new volume of the air is, 6.83 L

Water is composed of two hydrogen atoms and one oxygen atom therefore, water is a

Answers

two hydrogen
compound !!

What kinds of processes can cause rocks to change?

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1.Heat:Heat can cause rock to melt,forcing real changes in its chemical and physical makeup;forcing some elemental components to chemically react with each other,both internal and external,chemical components to form entirely new material.
another way is erosion

lets see here 1.Heat:Heat can cause rock to melt,forcing real changes in its chemical and physical makeup;forcing some elemental components to chemically react with each other,both internal and external,chemical components to form entirely new material.
another way is erosion

Summarize the effects of shearing, compression, and tension on Earth's crust.

Answers

Shearing is when plates slide up against each other, compression is when two plates collide together, and tension is when plates split up

Compare and contrast substances and mixtures with two examples

Answers

substances are raw elements
mixtures are two or more elements combined
they both have elements

Calculate the mole fraction of each gas in a mixture of 43.6 g Xe and 36.8 g Kr. show work

Answers

Answer:

Xe = 0.431 mole

Kr = 0.569 mole

Explanation:

We are asked to calculate the mole fraction of each gas

Let's start from, what is mole fraction?

Mole fraction is the ratio of the number of moles of a substance to the total number of moles of all substance present in the mixture

In this question, we are provided with

Xe - 43.6g

Let's find the number of mole

n = m/Mm

n - number of mole

m - number of mass in grams

Mm - number of molar mass

The molar mass of Xe according to the periodic table is 131.293u

m - is given to be 43.6g

n = 43.6g / 131.293g/mol

n = 0.332mole

Secondly,

Kr - 36.8g

The molar mass of Kr is 83.798

m = 36.8

Using the same formula we used above to find mole

n = 36.8g / 83.798g/mol

n = 0.439mole

Let's calculate the total number of mole in the mixture

Total number of mole = 0.332 + 0.439

= 0.771 mole

To find each mole of each gas in the mixture, using this formula

Mole fraction of a gas = mole of gas A / total mole of the mixture

In Xe = 0.332 / 0.771

= 0.431 mole of Xe in the mixture of the gas

For Kr = 0.439 / 0.771

= 0.569 mole of Kr in the total mixture

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