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- 1. Multiple ChoiceWhat is a coefficient?The small number on the right of the chemical symbol.The large number in front of a chemical formula.The number in between the chemical symbols.The number behind a chemical formula.
- 2. Multiple ChoiceWhat is the part of the chemical equation in green called?
Fe + S --> FeSproductsreactantsyieldchemical formula - 3. Multiple ChoiceWhat is the little number after an element in a chemical equation called.
Example: H2CoefficientSubscriptAtomEquation - 4. Multiple ChoiceWhat coefficient should be used to make the following equation balanced?
N2+O2--> _NO1234 - 5. Multiple ChoiceWhich problem is balanced?
(Check ALL answers)PbO2 + 2H2SO2 + H20 --> H2SO42Na + 2H2O --> 2NaOH + H2 - 6. Multiple ChoiceHow many elements are in C6H12O6?1234
- 7. Multiple ChoiceElement or compound?
H2Oelementcompound - 8. Multiple ChoiceHow many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H21234 - 9. Multiple ChoiceIs this balanced?
Al + O2 → 2Al2O3YesNo - 10. Multiple Choice
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
- 11. Multiple ChoiceWhat is the right part of a chemical equation called...
2H2 + O2 --> 2H2OReactantsProductsYieldsChemical Equation - 12. Multiple ChoiceIs the following equation balanced?
4Fe + 3O2 --> 2Fe2O3yesno - 13. Multiple Choice
The coefficient in 3H2O is
6
5
2
3
- 14. Multiple ChoiceHow many atoms of carbon (C) are in C6H12O6?361224
- 15. Multiple Choice
What are the coefficients that would properly balance this equation?
__Al + __O2--> __Al2O3
4,1 --> 2
4,3 --> 4
3,4 --> 1
4,3 --> 2
- Answer choicesTagsAnswer choicesTags