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Korolek [52]
3 years ago
12

In a chemical reaction, the mass of the products is equal to __. 11

Chemistry
1 answer:
Deffense [45]3 years ago
7 0
The answer for that is 16, math right?
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Which property of matter is conserved in chemical reactions and shown by balanced equations? mass volume density shape
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Answer:mass

Explanation:

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blondinia [14]

2, 4, 1

Explanation:

We have the following chemical reaction:

Ag₂O → Ag + O₂

To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.

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2 Ag₂O → 4 Ag + O₂

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This represents three steps of the rock cycle. The sediments are layered and compressed in sedimentary rock. The sedimentary roc
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ANSWER: C) Law of Conservation of Mass

EXPLANATION: In the given cycle, it is seen that th sediments are layered and gets compressed into sedimentary rocks which eventually gets heated and compressed to form metamorphic rocks. But, the total amount of minerals present in the sediments remains the same throughout any stage of the cycle.

This proves the law of conservation of mass which states that mass can not be created nor be destroyed, it can only be transferred from one form to another. So, in this case, only phase transition occurred but the component which is mineral inside the sediments remains constant.

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Consider the half reaction below.
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Answer: the second option: <span>Iron is being oxidized
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Explanation:

1) Oxidation is the increase of the oxidation state (number) due to the loss of electrons.

2) In the given reaction, you can see that in the left side the atom is Fe. 

When an element (atom) is not combined (or combined with it self) its oxidation state is 0. 

3) In the right side of the given equation you that iron is now in form of cation with charge 2+: Fe²⁺.

That means that the new oxidation state of the element is 2+.

4) This change in the oxidation state, of course, is accompanied by the loss of the two electrons: 2e⁻.

5) Conclusion: the iron has oxidized by losing two electrons and increasing its oxidation state from 0 to 2+.
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Ex of physical Properties
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Answer:

Explanation:

physical properties include:

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