1. Chemical Formulas Quiz- 10/7/15

2. #1
The formula for glucose is C6H12O6. How many elements does glucose contain?

3. #2
Which of the following lists all the elements that are present in a molecule of potassium carbonate, K2CO3 ?
A. Arbon and oxygen
B. Potassium and oxygen
C. Potassium, carbon, and oxygen
D. Carbon, oxygen, and krypton

4. #3
Which of the following contains the fewest number of elements?
A. S8
B. CH4
C. AlCl3
D. HNO2

5. CH4 is an example of: A. a chemical equation B. a chemical symbol#4
CH4 is an example of:
A. a chemical equation
B. a chemical symbol
C. a chemical formula
D. a chemical reaction

6. #5: Which of these diagrams illustrates a compound?

7. How many copper (Cu) atoms are there in Cu(NO3)2?#6
How many copper (Cu) atoms are there in Cu(NO3)2?

8. How many atoms are in 3KOH?#7
How many atoms are in 3KOH?

9. The chemical formula for hydrogen peroxide is H2O2 — #8
The chemical formula for hydrogen peroxide is H2O2 —
What are two things that this formula tells you about hydrogen peroxide?

10. In 2AgNO3, what does the “2” mean?#9
In 2AgNO3, what does the “2” mean?

11. #10
If a compound contains 6 atoms of sodium (Na) and 3 atoms of chlorine (Cl), what would the chemical formula be?