Types of Chemical Reaction PRACTICE - Year 10

Which gas is released when a metal reacts with an acid?

• Hydrogen

• Oxygen

• Carbon dioxide

• Nitrogen

Sodium hydroxide and sulfuric acid solutions are mixed. The products of this reaction are:

• sodium hydroxide and sulfuric acid.

• sodium sulfate and water.

• sodium sulfate, water and hydrogen gas.

• sodium sulfate, water and sulfur dioxide.

Which of the following sets of reactants would produce carbon dioxide?

• magnesium and hydrochloric acid

• calcium chloride and sodium carbonate

• silver nitrate and sodium chloride

• sodium carbonate and nitric acid

All acids, when dissolved in water, react in similar ways with metals, metal oxides and metal carbonates. Why do acids have these similar properties?

• Acids are compounds with hydrogen in their chemical formula.

• Hydrogen atoms in an acid can be replaced by metal atoms to form a salt.

• Acids dissolve in water to produce a solution containing ions.

• Acids produce hydrogen ions when they dissolve in water.

What is made when an acid and metal carbonate react?

• Carbon dioxide, water and a salt

• A salt, hydrogen and water

• Salt and water

• Oxygen, salt and water

What is made when an acid and base react?

• Carbon dioxide and a salt.

• Salt and hydrogen.

• Salt and water.

• Oxygen and salt.

Barium metal is mixed with nitric acid. The products of the reaction are:

• hydrogen gas and nitric acid.

• hydrogen gas and barium nitrate.

• carbon dioxide and barium nitrate.

• barium nitrate and water.

____________ occurs when one element donates an electron (or electrons) to another so that both elements will have a full outer shell.

• Covalent bonding

• Ionic bonding

• Hydrogen bonding

• Carbon bonding

In _____________ electrons are shared between atoms rather than donated in order for the atoms of both elements to gain full outer shells. Electrons are always shared in pairs.

• ioninc bonding

• covalent bonding

• hydrogen bonding

• carbon bonding

Atoms with a relatively full outer shell will want to ________ electrons to fill up the outer shell.

• give up

• gain

• multiply

• destroy