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Rudik [331]
4 years ago
13

Atoms are made of subatomic particles called protons, electrons and neutrons. What is true about the number of protons and elect

rons in a
stable atom?


A. the number of protons and electrons are equal

B. there are less protons than electrons

C. there are more protons than electrons
Chemistry
1 answer:
netineya [11]4 years ago
4 0
A. The number of protons are always the same as electrons.
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How many atoms of gold are in a pure gold coin weighing 12.0g?
grigory [225]
12.0g x 1 mol / 63.546g = 0.188839581mol 

<span>So, for every 1 mole, we have 6.022 x 10^23 of whatever we're measuring. This gives us a conversion factor of (1 mole / 6.022 x 10^23 atoms) or (6.022 x 10^23 atoms / 1 mole).
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0.188839581 mol x (6.022 x 10^23 atoms) / 1 mol = 1.137191955 x 10^23 

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<span>That should be your answer!

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3 0
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ser-zykov [4K]

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5 0
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NeX [460]

Answer:

the answer for what?

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3 0
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How many 1-cm cubes would it take to construct a cube that is 4 cm on edge? Express your answer using two significant figures.
Firlakuza [10]

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A 4-cm edge cube has a volume of V₄ = (4 cm)³= 64 cm³

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beks73 [17]

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kasama na jan ang explanation sana tama ang sagut thank you

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