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Arada [10]
4 years ago
8

An element has an atomic number of 10. The number of protons and electrons in a neutral atom of the element are ____.

Chemistry
1 answer:
Gekata [30.6K]4 years ago
6 0
10 protons and 10 electrons
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What's the balanced equation for magnesium and hydrochloric acid?
Roman55 [17]
Mg + 2 HCl ------> MgCl₂ +H₂O
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4 years ago
What happens to the particles in a gas when they touch a cold surface?
leva [86]

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they condensate

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3 years ago
How many moles of CO2 are there in 2.55 x 10<br><br> 18<br><br> molecules of CO2?
cluponka [151]

Answer: There are 4.23\times 10^{-6}moles  of CO_2

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadros number}}

\text{Number of moles}=\frac{2.55\times 10^{18}}{6.023\times 10^{23}}=0.423\times 10^{-5}moles

Thus there are 4.23\times 10^{-6}moles  of CO_2

6 0
3 years ago
The covalent catalytic mechanism of an enzyme depends on a single active site Cys whose pK is 8. A mutation in a nearby residue
Nimfa-mama [501]

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4 0
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. If 69.15% exists as 63Cu with an atomic mass of 62.92, then what is the atomic mass of the second isotope?
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Answer: 64.8

Explanation:Please see attachment for explanation

8 0
3 years ago
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