Gases

Cards (6)

Some chemical reactions appear to have a change in mass
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If there is an open system, the gas is allowed to escape
The total mass of the reactant decreases
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Gases have mass
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In a closed system
No gases can escape so the total mass of reactants will be the same
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Volume of gases
moles x 24
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At a given temperature and pressure, all gases occupy 24 dm³
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