Which statement best describes the kinetic molecular

Chemistry

1 answer:

prohojiy [21]3 years ago

3 0

Answer:

A. The kinetic molecular theory relates the properties of a state of matter to the motion of its molecules.

Explanation:

The higher the kinetic energy of the molecules, the faster its movement will be. The state of a matter will depend on how fast the molecules move. When the molecules barely move, it will be packed tightly and its state will be solid. If the molecules kinetic energy rises, eventually they start moving around and the state will be liquid. If the kinetic energy rises further, the molecule will expand and changed into gas form.

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A saline solution with a mass of 400 g has 30 g of NaCl dissolved in it. What is the mass/mass percent concentration of the solu

maria [59]

(g solute/g solution)*100 = % mass/mass

30 g / 400 * 100

0,075 * 100

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3 years ago

A sample of propane, C3Hg, contains 14.4 moles of carbon atoms. How many total moles of atoms does

Leona [35]

Answer:

43.2 mol C

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158 mol of atoms

Explanation:

Step 1: Given data

Moles of C₃H₈: 14.4 mol

Step 2: Calculate the number of moles of C

The molar ratio of C₃H₈ to C is 1:3. The moles of C are 3/1 × 14.4 mol = 43.2 mol.

Step 3: Calculate the number of moles of H

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Step 4: Calculate the total number of moles of atoms

n = nC + nH = 43.2 mol + 115 mol = 158 mol

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3 years ago

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bixtya [17]

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<h3>Detail required for calculation cost</h3>

The given question has known cost of the fuel per gallon.

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