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Tcecarenko [31]
3 years ago
11

Which of the following involves a chemical change?

Chemistry
2 answers:
Misha Larkins [42]3 years ago
8 0

Answer:

A

Explanation:

no explanation. just choose answer A

Liula [17]3 years ago
7 0

Answer:

A.

Explanation:

hehe plss give me a heart

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Is this right:) please tell me
viva [34]

Answer:

I think that:

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Attractive force:gravity

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Explanation:

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Calculate the mass in grams of 3. 29 x 104 mol of lithium<br><br> Help please?
Sedaia [141]

<em>Answer </em>

<em>no</em><em>. </em><em>of</em><em> </em><em>moles</em><em> </em><em>=</em>

<em>\frac{mass \: {g} \: }{ \: molecular \: wight}</em>

so, <em>mass</em><em> </em><em>(</em><em>g</em><em>)</em><em>=</em><em> </em><em>no</em><em>. </em><em>of</em><em> </em><em>mol</em><em>es</em><em> </em><em>×</em><em> </em><em>molecular </em><em>wight </em>

Explanation:

Li molecular wight equal to 6.941

mass (g)=3.29×104 <em>mol</em><em> </em><em>×</em><em>6</em><em>.</em><em>9</em><em>4</em><em>1</em><em> </em><em>=</em><em>2</em><em>3</em><em>7</em><em>4</em><em>.</em><em>9</em><em>3</em><em>g</em><em> </em><em>of</em><em> </em><em>lithium </em>

3 0
2 years ago
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