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svp [43]
3 years ago
8

How many protons will there be if the atom has 3 electrons and a mass of 7 amu

Chemistry
1 answer:
Alisiya [41]3 years ago
3 0
4 protons, 4 neutrons 3 electrons I think
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Calculate the density of an object whose mass is 352 grams and has a volume of 469 mL please show work
mixer [17]

Answer:

<h2>0.75 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{352}{469}  \\  = 0.750533..

We have the final answer as

<h3>0.75 g/mL</h3>

Hope this helps you

4 0
3 years ago
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Answer: 0.335 mols Ca(NO3)2

Explanation: To go from grams to mols you divide grams by the molar mass of the substance so, 55/164.088 = 0.335

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4 years ago
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the answer is option b


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