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notka56 [123]
2 years ago
15

Which of the following is evidence of a physical change?haora

Chemistry
2 answers:
Tatiana [17]2 years ago
5 0

Answer:

a Change in size

Explanation:

Arisa [49]2 years ago
3 0
Chopping wood
ripping pants
breaking something in half
molding clay
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What type of plate boundary would form where there is a mountain range present, known earthquake activity, but no trenches prese
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continental-continental convergent boundary

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Read 2 more answers
A chemist has 3.55x1022 molecules of nitrogen monoxide. How
Alina [70]

Answer:

<h2>0.059 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} \\

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L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.55 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.05897...

We have the final answer as

<h3>0.059 moles</h3>

Hope this helps you

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What are accounts for physical properties?
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