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pashok25 [27]
3 years ago
7

Chemical changes involve the breaking and making of chemical bonds. The answer is always

Chemistry
1 answer:
larisa [96]3 years ago
6 0

Answer:

Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules). The number of atoms before and after the chemical change is the same but the number of molecules will change.

Explanation:

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A.marsh it’s the most common one
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Why are ions usually formed during the interaction of metal with nonmetal and not between two metals? ​
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Explanation:

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3 years ago
How many moles of carbon are in 7.00 x 1023 atoms of carbon?
Andru [333]

Answer:

<h2>1.16 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{7}{6.02}  \\  = 1.162790....

We have the final answer as

<h3>1.16 moles</h3>

Hope this helps you

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3 years ago
What is true for the energy involved in an explosion?
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