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kobusy [5.1K]
3 years ago
7

What does Ca stand for in chem?

Chemistry
2 answers:
abruzzese [7]3 years ago
7 0

Answer:

Calcium

Explanation:

Periodic table

shusha [124]3 years ago
5 0
Ca stands for the element Calcium in group 2A on the periodic table.
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How many moles of carbon monoxide are there in 36.55 g of carbon monoxide?
Kitty [74]

You can find moles of a substance by dividing mass by the molecules molar mass.

Explanation:

Carbon Monoxides Molar mass is 12.0111 (Carbon) + 16.0000 (Oxygen) = 28.0111g/mol. Divide grams by molar mass:

<span><span><span>36.55g</span>28.0111</span>=1.305mol<span>s</span></span>

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3 years ago
Recall that your hypothesis is that these values are the fraction of atoms that are still radioactive after n half-life cycles.
Savatey [412]

0.5^{n} means 0.5 raise to the power of n. "To the power of" means an action of multiplication of 0.5 to n times.

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For B:

n = 2 (given)

0.5^{n} = 0.5^{2} = 0.5\times 0.5 = 0.25

For C:

n = 3 (given)

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For D:

n = 6 (given)

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For E:

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4 0
3 years ago
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Which statement best describes what happens in a fission reaction
alexandr402 [8]

The answer is; Heavy nuclei split into lighter nuclei


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