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- 1. Multiple Choice
What is the name of PO4?
phosphate
phosphite
monophosphorous tetroxide
phosphorous tetroxide
- 2. Multiple Choice
What is the name of PO42-?
phosphate
phosphite
monophosphorous tetroxide
phosphorous tetroxide
- 3. Multiple Choice
Which of the follow has more molecules: 1 mole of carbon dioxide or 1 mole of dinitrogen pentoxide?
carbon dioxide has more molecules
dinitrogen pentoxide has more molecules
They have the same molecules
- 4. Multiple Choice
Which of the follow has more grams: 1 mole of carbon dioxide or 1 mole of dinitrogen pentoxide?
carbon dioxide has more grams
dinitrogen pentoxide has more grams
They have the same grams
- 5. Multiple Choice
Using significant figures, what is 12.70 minus 11.2?
2
1.5
1.50
1.500
- 6. Multiple Choice
Using significant figures, what is 12.70 divided by 11.2?
1.134
1.13
1.1
1
- 7. Multiple Choice
What would a proper recording of this measurement be?
20
24
24.0
24.00
- 8. Multiple Choice
What would a proper recording of this measurement be?
6
6.6
6.60
6.600
- 9. Multiple Choice
How many grams are in 1.6 x 1024 formula units of sodium hydrogen carbonate
280
282
220
223
- 10. Multiple Choice
convert 270 kilograms to milligrams
2.7 x 108 mg
.27 mg
2.7 x 10 -4 mg
2.7 x 1011 mg
- 11. Multiple Choice
How many atoms does 33g of iron have?
.59 atoms
3.6 x 1023 atoms
1.7 atoms
1.0 x 1024 atoms
- 12. Multiple Choice
How many moles does 33g of iron have?
.59 moles
3.6 x 1023 moles
1.7 moles
1.0 x 1024 moles
- 13. Multiple Choice
How many total electrons are there in 3 moles of aluminum
13 electrons
3 electrons
1.8x1024 electrons
2.3x1025 electrons
- 14. Multiple Choice
How many moles of electrons are there in 3 moles of aluminum
13 moles of electrons
3 moles of electrons
39 moles of electrons
1 mole of electrons
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