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NNADVOKAT [17]
3 years ago
5

The period on the periodic table(1-7) tells you the number of ________ in an atom.

Chemistry
2 answers:
BabaBlast [244]3 years ago
8 0

Answer:

Electrons on the last energy level.

Ber [7]3 years ago
3 0

Answer:

B

Explanation:

as it depends on electronic configuration

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Cl2 + 2OH− → Cl− + ClO− + H2O
Nataly_w [17]
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2e- + Cl2(g) -------> 2Cl-(aq) [reduction] 

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What is △n for the following equation in relating Kc to Kp?
Nimfa-mama [501]

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-1  

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<u>Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)  = (2+1)-(2+2) = -1  </u>

<u></u>

7 0
3 years ago
How many moles are in 9.8 grams of calcium?
kondor19780726 [428]
<span>when the number of moles Ca = mass of Ca / molar mass of Ca.

and we can get the molar mass of Ca, it is = 40 g/mol

and we have already the mass of Ca (given) = 9.8 g

so, by substitution: the moles Ca = 9.8 g / 40 g/mol

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