Balancing Equations and Types of Reactions Practice

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What does the law of conservation of mass state?

Back

The law of conservation of mass states that in a chemical reaction, the total mass of the reactants is equal to the total mass of the products.

Front

What type of reaction is represented by the equation: 3KOH + H3PO4 → K3PO4 + 3H2O?

Back

This is a Double displacement reaction.

Front

Write the balanced chemical equation for the reaction of solid Zn with silver (I) chloride.

Back

Zn + AgCl → ZnCl2 + Ag

Front

What type of reaction is represented by the equation: 3Ca + 2AlCl3 → 3CaCl2 + 2Al?

Back

This is a Single displacement reaction.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single displacement reaction?

Back

A single displacement reaction is a type of reaction where one element replaces another element in a compound.

Front

What is a double displacement reaction?

Back

A double displacement reaction is a type of reaction where the anions and cations of two different compounds exchange places, forming two new compounds.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is followed, meaning the number of atoms for each element is the same on both sides of the equation.