Neutralisation and Precipitation Reactions

Number of N in (NH₄)₂CrO₄

• 1
• 2
• 8
• 16

These are the compounds you have at the beginning of the reaction

• products

• reactants

Number of C's in 2Na₂CO₃

• 1
• 2
• 3
• 5

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.
• Matter can only be lost in a chemical reaction.
• Matter can only be gained in a chemical reaction.
• Matter can be gained and lost in a chemical reaction. 

When solutions of MgCO₃ and Fe₂(SO₄)₃ are combined, what precipitate(s) forms?

• MgSO₄

• neither form a precipitate

• MgSO₄ and Fe₂(CO₃)₃

• Fe₂(CO₃)₃

State whether the following compound is soluble or insoluble.  calcium carbonate CaCO₃ 

• soluble
• insoluble

State whether the following compound is soluble or insoluble. potassiun bromide KBr

• Soluble
• Insoluble

State whether the following compound is soluble or insoluble. Silver iodide AgI

• Soluble 
• Insoluble 

When solutions of two ionic compounds are combined and a solid forms, the process is called

• hydration

• solvation

• dissociation

• precipitation

acid + base -->

• salt + water

• salt + oxygen

• salt + carbon dioxide