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Alborosie
3 years ago
13

All the nonmetals have some similar physical properties. True False

Chemistry
2 answers:
Dafna11 [192]3 years ago
8 0
<span>All the nonmetals have some similar physical properties is false because
</span><span>all non metals within the same group have similar properties.</span>
OLEGan [10]3 years ago
5 0
TRUE.

Nonmetals have some similar physical properties.

En general:

- They are either gases or brittle solids.
-  They are opaque
- They are poor conductors of heat and electricity.
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3 years ago
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ruslelena [56]

Answer:

<h2>117.94 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{7.1 \times  {10}^{25} }{6.02 \times  {10}^{23} }  \\  = 117.940199...

We have the final answer as

<h3>117.94 moles</h3>

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8 0
2 years ago
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7 0
3 years ago
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