What To Do
Written Work 1
Directions: Circle the letter of the correct answer about elements and
compounds.
1. Which of the following elements is metallic?
c, chlorine
a. oxygen
b. carbon
@ silver
2. Which of the following is a correct example of symbol for an element?
a. BK
C Am
b. mg
d. HE
3. Which of the following is consists of three elements?
a. NH3
c. (NH4)2SO4
b AlCl3
d. CH3COOH
4. Which of the following is an example of an element?
c. NaBr
b. NO2
d. NaOH
a, H2
5. Which of the following statement is FALSE?
a. Majority of the elements are metallic,
b. Both elements and compounds are pure substances.
c. Elements and compounds can still be separated by physical means.
d. Majority of the materials or ingredients in food labels are compounds.

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