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- 1. Multiple ChoiceWhat does the Law of Conservation of Mass state?Matter cannot be gained or lost in a chemical reaction.Matter can only be lost in a chemical reaction.Matter can only be gained in a chemical reaction.Matter can be gained and lost in a chemical reaction.
- 2. Multiple ChoiceWhat is the left part of a chemical equation called?
2H2 + O2 --> 2H2OReactantsProductsYieldsChemical Equation - 3. Multiple ChoiceWhat is the right part of a chemical equation called...
2H2 + O2 --> 2H2OReactantsProductsYieldsChemical Equation - 4. Multiple ChoiceHow many atoms of carbon (C) are in C6H12O6?361224
- 5. Multiple ChoiceHow many elements are in C6H12O6?1234
- 6. Multiple ChoiceHow many Sodium (Na) are in 6NaCl?1126
- 7. Multiple ChoiceHow many Aluminum are in Al2O3?325
- 8. Multiple ChoiceHow many Hydrogen are in 4H2O?6824
- 9. Multiple ChoiceIs the following equation balanced?...
Al + O2 --> 2Al2O3Yes!No! - 10. Multiple ChoiceWhich of the following reactions is balanced?2CH4 + O2 -> CO2 + H2OCH4 + 2O2 -> CO2 + H2OCH4 + 2O2 -> CO2 + 2H2ONone of the chemical equations are balanced.
- 11. Multiple ChoiceBalance this equation...
HgO --> Hg + O2It is balanced2HgO --> Hg + O22HgO --> 2Hg + O2I don't know...Oh well! - 12. Multiple ChoiceHow many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H21234 - 13. Multiple ChoiceBalance this equation.
_CF4 + _Br2 -- _CBr4 + _F22,1,2,11,2,2,11,2,1,22,2,2,2 - Answer choicesTagsAnswer choicesTags