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Fittoniya [83]
4 years ago
10

In any chemical reaction, the quantities that are preserved are O A. the number of moles and the volumes B. the number of molecu

les and the volumes 0 C. mass and number of atoms D. mass and moles​
Chemistry
1 answer:
Strike441 [17]4 years ago
4 0

Explanation:

Law of conversation of mass applies in any chemical reaction.

The number of moles can be different for each compound being used, as it is based on the different molar masses of each compound.

Hence, the answer is C. mass and number of atoms.

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_AlBr3+_K2SO4&gt;_KBR+_Al2(SO4)3
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Answer:

Balancing chemical equation means making a number of atoms or molecules equal on both sides. In other words, this means that the number of atoms and molecules of each reacting element needs to be the same as the number of atoms and molecules of those elements in the product.

Our reaction is:

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and we need to balance it.

Since there are 3 molecules of SO4 in the product we need to put 3 before the reactant K2SO4. There are also 2 atoms of Al in the product, so we need to put 2 in front AlBr3. Now we have 6 atoms of K and Br on the left side, so we need to put 6 in front of KBr in the product.

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4 years ago
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expeople1 [14]

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D

Explanation:

3 0
3 years ago
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How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O)? For example if th
oee [108]

Given :

Mass of oxygen containing carbon monoxide (CO) is 2.666 gram .

To Find :

How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O) .

Solution :

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So , volume of solution does not matter .

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Now , molecule of CO contains 1 mole of C .

So , moles of C is also 0.167 mole .

Mass of carbon , m=12\times 0.167=2\ g .

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