03. Read each item carefully. Write only the letter of the correct answer for each cuestion.
2. What are the two classes of matter?
a. atom and molecules
b. elements and compound
2. To separate salt from water in a seawater madure, what process is used?
plant and animal cell
a. condensation
b. distillation
3. Which is NOT a technique to separate components of mixture?
a. condensation
b. distillation
4. Which of the following is a heterogeneous mixture?
cevaporation
a. air
b. oil in water
c. stainless steel
5. What substance is made by mixing two elements without chemically combined?
a. minture
b. compound
c. solution
d. elements
6. What is the best way to use in separating iron parts from micture?
b. spoon
c. magnet
Filter pepes
7. Which of the following uses evaporation as a means of separating the components of the given mature?
a. salt and water
b. iron fillings and baby powder c. sand and Eravel
8. Which of the following ingredients is an element?
a. calcium
b, carbohydrates
9. Which of the following ingredients is a compound?
b. calcium chloride
a. calcium
c. magnesium
d. manganese
10. Boron, Carbon, Nitrogen, and Oxygen are examples of
b. elements
c. nutrition facts
d. ingredients
a. Compounds

I hope you answer​