Quiz 1 Bio 232

True or false:

Chemical reactions occur when chemical bonds are formed, broken, or rearranged

• True

• False

What type of chemical bond reaction is being shown below:

A+B --> AB

• Forming bonds

• Breaking bonds

• Rearranging bonds

Answer explanation

When two reactants come together and become one product it is a bond being formed

What type of chemical bond reaction is being shown below:

AB --> A + B

• Forming chemical bonds

• Breaking bonds

• Rearranging bonds

Answer explanation

When a combined product turns into two separate reactants, chemical bonds are being broken in a chemical reaction

What type of chemical bond reaction is being shown below:

AB + C --> AC + B

• Forming bonds

• Breaking bonds

• Rearranging bonds

Answer explanation

When one combined reactant and another reactant switch around after the reaction occurs defines bonds being rearranged

What do chemical equations contain?

• Reactants

• Products

• Molecular formulas

• All of the options

Answer explanation

Reactants are the elements alone

Products = reactants combined chemically

Reactants and products are written as molecular formulas

Identify what part of the equation is bolded:

Na + Cl --> NaCl

• Reactants

• Products

• Hydrolysis

• Decomposition

Identify what part of the equation is bolded:

Na + Cl --> NaCl

• Reactants

• Products

• Hydrolysis

• Decomposition

What chemical reaction involves bond formation forming larger molecules?

• Synthesis

• Decomposition

• Exchange

• Oxidation-reduction

Answer explanation

Also called dehydration synthesis.

Ex: A + B --> AB

What chemical reaction involves bonds being broken forming smaller molecules?

• Synthesis

• Decomposition

• Exchange

• Oxidation-reduction

Answer explanation

Also called hydrolysis

Ex: AB --> A + B

What chemical reaction occurs when bonds are both made and broken?

• Synthesis

• Decomposition

• Exchange

Answer explanation

AKA: oxidation-reduction reactions

Ex: AB + C --> AC + B