What I Know
Directions: Read each item carefully. Use a separate sheet for your answers.
1. Which of the following is the simplest form of substance
a chemical formula
b. compound
c. element
d. mixture
2. Which of the following is NOT an example of compound?
a. ammonia
b. helium gas
c. hydrogen peroxide
d. table sugar
3. Which of the following statements is TRUE about elements and compounds?
a. They are homogenous in nature.
b. They simplest form of matter.
c. They are commonly naturally occurring materials.
d. They can be broken down into simpler substances.