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saw5 [17]
3 years ago
7

What are Chemical Calculations ?​

Chemistry
2 answers:
Rudik [331]3 years ago
5 0

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on ....

nirvana33 [79]3 years ago
3 0

Answer:

yyyyyyyyyyyyyh hh

Explanation:

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2 or more forces that are not equal and opposite of one another can cause change in motion
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What type of a reaction takes place when atoms or molecules rearrange to form new substances
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A chemical reaction happens when the atoms or molecules rearrange to form a new substance


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Which of the following represents six molecules of water? 6HO 2 6H 2O 1 6H 2O H 6O
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If iodine-131 has a half-life of 8 days, how much of a 64.0 g sample of iodine-131 will remain after 32 day?
Mariulka [41]

Answer:

4 g OF IODINE-131 WILL REMAIN AFTER 32 DAYS.

Explanation:

Half life (t1/2) = 8 days

Original mass (No) = 64 g

Elapsed time (t) = 32 days

Mass remaining (Nt) = ?

Using the half life equation we can obtain the mass remaining (Nt)

Nt = No (1/2) ^t/t1/2

Substituting the values, we have;

Nt = 64 * ( 1/2 ) ^32/8

Nt = 64 * (1/2) ^4

Nt = 64 * 0.0625

Nt = 4 g

So therefore, 4 g of the iodine-131 sample will remain after 32 days with its half life of 8 days.

8 0
3 years ago
4 Elliot has some stearic acid. It is in the solid state.
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Answer:

it is in solid state

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at 100% heat

6 0
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