QUIZ IN SCIENCE

Which is not a type of chemical reaction?

• Decomposition

• Substitution

• Combination

• Evaporation

What scientific law is the basis for balancing chemical equations?

• Law of Chemical Reactions

• Law of Conservation of Energy

• Law of Conservation of Mass

• Law of Definite Proportions

Aluminum metal reacts with oxygen gas to produce solid aluminum oxide (Al₂O₃). What type of reaction is being described?

• Combination

• Decomposition

• Double Replacement

• Single Replacement

Which of the following is a shorthand notation that represents substances undergoing chemical reactions?

• Chemical Formula

• Chemical Equation

• Empirical Equation

• Empirical Formula

Chemical changes are always represented by chemical equation. What entities are usually located on the right side of the chemical equation?

• Coefficient

• Product

• Reactant

• Subscript

What type of chemical equation is this:

Li + F₂ ------> LiF

• Combination

• Decomposition

• Single Replacement

• Double Replacement

What type of chemical reaction is this:

AgNO₃ + Cu ------> CuNO₃ + Ag

• Combination

• Decomposition

• Single Replacement

• Double Replacement

What type of chemical equation is this:

CaSO₄ + Mg(OH)₂ -------> Ca(OH)₂ + MgSO₄

• Combination

• Decomposition

• Single Replacement

• Double Replacement

What type of chemical equation is this?

KClO₃ ----------> KCl + O₂

• Combination

• Decomposition

• Single Replacement

• Double Replacement

In a chemical equation, the symbol that takes place of the words "reacts with" is called ______.

• Arrow

• Coefficient

• Equal Sign

• Plus Sign