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Ipatiy [6.2K]
2 years ago
11

Which statement best describes the law of conservation of mass? (1 point)

Chemistry
1 answer:
lisov135 [29]2 years ago
6 0

Matter cannot be created or destroyed in a chemical reaction best describe law of conservation of mass.

<h3>What is law of conservation of mass?</h3>

The law of conservation of mass states that for any system closed Mass can neither be created not destroy. the mass of the system must remain constant over time,.

Therefore, Matter cannot be created or destroyed in a chemical reaction best describe law of conservation of mass.

Learn more about law of conservation of mass here.

brainly.com/question/15289631

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C) It provides a lower activation energy for the reaction is the correct answer.

Explanation:

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A gold coin contains 3.47 × 10^23<br> gold atoms.<br> What is the mass of the coin in grams?
VashaNatasha [74]

Answer:

Mass = 114.26 g

Explanation:

Given data:

Number of gold atoms = 3.47×10²³ atoms

Mass in gram = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

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0.58 mol

Mass of gold:

Mass = number of moles × molar mass

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Mass = 114.26 g

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