3 years ago

Which of the following pairs of elements is most likely to form an ionic compound?

Chemistry

1 answer:

Scrat [10]3 years ago

5 0

Explanation:

magnesium and sodium because they are minerals and part of iron

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How many grams of octane (C8H18) must be burned to produce 300.0g of CO2?

nika2105 [10]

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$m_{C_8H_{18}}=85.67gC_8H_{18}$

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Hello there!

In this case, according to the given combustion reaction of octane, it is possible for us to perform the stoichiometric method in order to calculate the mass of octane that is required to consume 300.0 g of oxygen by considering the 2:25 mole ratio, and the molar masses of 114.22 g/mol and 32.00 g/mol respectively:

$m_{C_8H_{18}}=300.0gO_2*\frac{1molO_2}{32.00gO_2}*\frac{2molC_8H_{18}}{25molO_2}*\frac{114.22gC_8H_{18}}{1molC_8H_{18}} \\\\m_{C_8H_{18}}=85.67gC_8H_{18}$

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