Quarterly 3 Exam Review

What type of reaction begins with two or more reactants at the beginning of the reaction and ends with one product?

• Synthesis

• Decomposition

• Single Replacement

• Combustion

What type of reaction begins one reactant breaking up in two products?

• Synthesis

• Decomposition

• Single Replacement

• Combustion

What reaction is depicted: HCl +NaOH-> NaCl + H2O

• Combustion

• Single Replacement

• Double Replacement

• Synthesis

• moles

• atoms

• molecules

• grams

What states that mass and matter are conserved in every chemical reaction?

• Principle of Avogadro

• Law of Multiple Proportions

• Law of Definite Proportions

• Law of Conservation of Mass

What is the goal of a net ionic equation?

• to show the spectator ions

• to show only the particles involved in creating the solid product

• to see an unbalanced equation

• to show every single cation and anion in a reaction

In an ionic equation, what gets crossed out because they are NOT involved in forming the solid product?

• cations

• anions

• spectator ions

• precipitates

What is the definition of empirical formula?

• the lowest whole number ratio of the elements in a compound.

• the highest whole number ratio of the elements in a compound.

• a compound with all the positive ions.

• a compound with all the negative ions.

During a chemical reaction, atoms ________.

• can appear

• can disappear

• get rearranged

• stop moving and vibrating

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation