Chemical Equations

Practice Questions

GRE Subject Test: Chemistry › Chemical Equations

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$Na_2SO_4+BaCl_2 \rightarrow 2NaCl +BaSO_4$

When 15.5 grams of $Na_{2}SO_{4}$ is used in the given reaction, how many moles of $BaSO_{4}$ is produced?

$C_3H_8+O_2\rightarrow CO_2+H_2O$

What is the smallest whole number coefficient that can be designated to the molecule that would balance the chemical equation given?

$NH_{3}(g)\ + HCl(l)\rightarrow\ NH_{4}Cl(s)$

If of $NH_{3}$ is used for the reaction given, how many grams of $NH_{4}Cl$ was formed?

What is the balanced chemical equation for the combustion of butane $(C_4H_{10})$ ?

$PCl_{3}(l)+3H_{2}O(l)\rightarrow\ H_{3}PO_{4}(l)+3HCl(l)$

If of is formed during the reaction given, how many grams of $PCl_{3}$ was used?

$Na_2SO_4+BaCl_2 \rightarrow 2NaCl +BaSO_4$

When 20.0 grams of $Na_{2}SO_{4}$ is used in the given reaction, how many moles of is produced?

What is the net ionic equation for the ion exchange reaction between ferrous sulfate and calcium iodide? Assume all compounds are soluble.

$H_3PO_4+Ca(OH)_2\rightarrow H_2O+CaHPO_4$

What is the smallest whole-number coefficient that can be designated to the water molecule that would balance the chemical equation given?

Determine whether or not solid aluminum reacts with aqueous zinc chloride. If it does, determine the balanced equation for the reaction.

Select the net ionic equation from this molecular reaction:

$Ba(NO_{3})_{2} (aq) + K_{2}SO_{4} (aq) \rightarrow 2KNO_{3} (aq) + BaSO_{4} (s)$

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