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- 1. Multiple ChoiceBalance this equation:
MgCl2 --> Mg4+ Cl2It's already balanced.4MgCl2 --> Mg4+ 4Cl24MgCl2 --> Mg4+ 5Cl2 - 2. Multiple ChoiceBalance this equation:
2Li + Cl2 -> LiCl2Li + Cl2 -> 4LiCl22Li + Cl2 -> LiCl22Li + Cl2 -> 2LiCl - 3. Multiple ChoiceThe substances listed on the left side of a chemical equation are theProductsCoefficientsPrecipitatesReactants
- 4. Multiple ChoiceIn chemical reactions, what does the principle of conservation of mass mean?Matter is not created or destroyed.The total mass of the reactants is greater than the total mass of the products.The total mass of the reactants is less than the total mass of the products.Matter is not changed.
- 5. Multiple ChoiceHow many Hydrogen (H) atoms are in NH3O53451
- 6. Multiple ChoiceName the part in red:
H2 + O2 -> H2OCoefficientProductYieldSubscript - 7. Multiple ChoiceName the part in red:
_2_H2 + _1_O2 -> _2_H2OCoefficientProductYieldSubscript - 8. Multiple ChoiceName the part in red:
H2 + O2 -> H2OCoefficientProductReactantSubscript - 9. Multiple ChoiceName the part in red:
H2 + O2 -> H2OCoefficientProductReactantSubscript - 10. Multiple ChoiceHow many phosphorus atoms are in PO4?1234
- 11. Multiple ChoiceWhich number should go in the blank?
_ H2 + O2 -> 2 H2O1230 - 12. Multiple ChoiceIs the following equation balanced or unbalanced ?
Al + O2 --> Al2O3BalancedUnbalanced - 13. Multiple ChoiceIs the following equation balanced or unbalanced ?
N2 +3 H2 --> 2NH3BalancedUnbalanced - 14. Multiple ChoiceHow many hydrogens are in 4H2O?6824
- 15. Multiple ChoiceRead the following chemical formula: C6H12O6. How many hydrogen atoms are in the formula?1264
- 16. Multiple ChoiceHow many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O32614
- 17. Multiple ChoiceWhat are the coefficient used to balance the equation below?
__Ag2O →__ Ag +___O22,4,11,1,12,1,22,2,2 - 18. Multiple ChoiceHow many Oxygen atoms are in 4H2O?4108
- 19. Multiple ChoiceBalance this equation:
__ Al + __ HCl → __ H2 + __ AlCl32, 6, 3, 2it is already balanced4, 12, 3, 42, 1, 4, 5 - 20. Multiple ChoiceIs this balanced?
Al + O2 → 2Al2O3YesNo - Answer choicesTagsAnswer choicesTags