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4 years ago

What percentage of carbon dioxides mass is carbon? What percentage is oxygen?

Chemistry

1 answer:

Maslowich4 years ago

6 0

Answer:

Carbon = 27.3%

Oxygen = 72.7%

Explanation:

Use the Masses of the elements

Carbon dioxide = 44

Carbon = 12

Oxygen = 16

Where for Carbon;

12/44 × 100 = 27.3%

Where for oxygen;

100 - 27.3 = 72.7% or

32/44 × 100 = 72.7%

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garri49 [273]

Explanation:

Given

The enthalpy of formation of RbF (s) is –557.7kJ/mol

The standard enthalpy of formation of RbF (aq, 1 m) is –583.8 kJ/mol

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= -583.8 - (-557.7) kJ/mol

= -26.1 kJ/mol

The enthalpy is negative which means that the temperature will rise when RbF is dissolved.

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3 years ago

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EleoNora [17]

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3 years ago

Read 2 more answers

Resources that are not able to be reproduced as quickly as they are used are called _____.

Maurinko [17]

Answer:

C) non renewable resources

Explanation:

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3 years ago

This graph shows the solution to the inequality y > 3x + 14 and y < 3x + 2

erik [133]

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3 years ago

The mass of a block is 12 g and the volume is 6 ml. Calculate the density of the block.

HACTEHA [7]

Answer:

According to mass and volume, block density is 2 g/ml

Explanation:

Density is a measure, usually used in physics and chemistry, that relates the mass and volume of a solid or compound.

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The formula used to calculate the density is

ρ = $\frac{m}{V}$

Therefore, according to the mass and density of the block

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<em>The other options are not possible, because the values given do not correspond to the result of the equation.</em>

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3 years ago