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kow [346]
3 years ago
9

Which provides evidence to support the big bang theory?

Chemistry
1 answer:
Stolb23 [73]3 years ago
6 0
A<span>. </span>
<span>the change in carbon dioxide levels in the atmosphere 
</span>
hope that's right and hope i helped




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What is the mass (in mg) of 2.63 moles of nickel?
zaharov [31]
Data:
Molar Mass of Nickel = 58,7 g/mol

Solving:
58,7 g → 1 mol
y -------→ 2.63 mol

Solving: (They are proportional measures, the rule of three is made (directly proportional)

\frac{58.7}{y} = \frac{1}{2.63}
multiply cross
1*y = 58.7*2.63
y = 154.381\:g \stackrel{converting}{\longrightarrow}\:\boxed{y = 154381\:mg}


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Answer:

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