- Which of the following will NOT increase the rate of a reaction?
Your answer:
Increasing surface area
Increasing concentration of the reactants
Increasing temperature
Increasing the amount of inhibitor
- The reactant hydrogen peroxide breaks down into two smaller molecules, water and oxygen gas. This reaction is an example of a _____ reaction.
Your answer:
Single replacement
Double replacement
Decomposition
Synthesis
- What sign separates the reactants from the products in a chemical reaction?
Your answer:
plus sign
stop sign
yield sign
minus sign
- The little number to the bottom right of an element that shows the amount of that atom in a chemical formula is called a:
Your answer:
subscript
prefix
atomic number
coefficient
- How many of each type of element would there be in 2H2O (water)
Your answer:
4 Hydrogen, 4 Oxygen
2 Hydrogen, 4 Oxygen
2 Hydrogen, 2 Oxygen
4 Hydrogen, 2 Oxygen