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- 1. Multiple Choice
Which is the correct chemical equation for the following: Solid Zn reacts with silver (I) chloride to produce Zinc (II) chloride and silver metal
Zn + AgCl → ZnCl2 + Ag
ZnCl2 + Ag → Zn + AgCl
ZnCl2 + Ag2 → Zn + AgCl
Zn2Cl + Ag → Zn + AgCl
- 2. Multiple Choice
Which is the correct chemical equation for the following: Barium Chloride combined with sodium sulfide yields barium sulfide and sodium chloride
BaCl + NaS → BaS+ NaCl
BaCl2 + Na2S → BaS+ NaCl
BaS+ NaCl → BaCl + NaS
BaCl2 + Na2S → BaS+ NaCl2
- 3. Multiple ChoiceWhat is the correct formula for Sodium Oxide?NaONaO2Na2ONa2O2
- 4. Multiple ChoiceName the following ionic compound: BeCl2beryllium chlorineberyllium II chlorideberyllium chlorideberyllium dichloride
- 5. Multiple ChoiceWhich is NOT a diatomic molecule?FluorineNitrogenBoronBromine
- 6. Multiple Choice
___________________ are the elements or compounds that are formed in a chemical reaction.
Polymers
Bonds
Reactants
Products
- 7. Multiple Choice
Which part of the chemical equation is the product?
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
C6H12O6 + 6O2
6CO2 + 6H2O
- 8. Multiple Choice
Which type of chemical reaction is pictured?
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
decomposition
single replacement
synthesis
combustion
- 9. Multiple ChoiceThe reactants are on the left side of the chemical equation.TrueFalse
- 10. Multiple ChoiceA chemical reaction is ___________________.when substances undergo changes that result in a new substancea characteristic of a substance that can be observed without changing the substance into another substancewhen substances undergo changes that alter their form or physical appearance
- 11. Multiple Choice
Select the pair of words that correctly displays the general FORMAT for writing CHEMICAL EQUATIONS.products --> reactantsproducts --> productsreactants --> productsreactants --> reactants - 12. Multiple ChoiceHow many hydrogen atoms are in this chemical formula:4 hydrogen atoms1 hydrogen atom2 hydrogen atoms3 hydrogen atoms
- 13. Multiple ChoiceWhich of the following are products in the reaction below?
Hydrogen gas (H2) reacts with oxygen gas (O2) to produce water.hydrogen gaswaterhydrochloric acidoxygen gas - 14. Multiple ChoiceWhich of the following is a reactant in this equation?
Methane gas (CH4) reacts with Oxygen gas (O2) to produce water and carbon dioxide gas (CO2).CO2CH4H2CH2 - 15. Multiple Choice
Which of the following is a reactant in the chemical reaction?
Al(OH)3+ 3NaNO3---> Al(OH3)3 + 3NaOH
NaNO3
Al(OH3)3
NaOH
Al(OH)3
- 16. Multiple ChoiceWhat is the correct formula for Sodium Oxide?NaONaO2Na2ONa2O2
- 17. Multiple ChoiceName the following ionic compound: BeCl2beryllium chlorineberyllium II chlorideberyllium chlorideberyllium dichloride
- 18. Multiple ChoiceWhat would be the proper chemical formula for combining Al3+ and Cl- :AlCl3Al3ClAlClAl3Cl3
- 19. Multiple ChoiceThe proper formula for magnesium hydroxide:MgOHMg2OHMg(OH)2Mg2OH2
- 20. Multiple ChoiceThe chemical formula for diphosphorous pentoxide isP5O22P 5O5P 2OP2O5
- 21. Multiple ChoicePotassium sulfate is written asK4SO2P2(SO4)3K2SO4P4SO3
- 22. Multiple ChoiceThe formula for copper (II) hydroxide isCu(II)OHCu(OH)2Cu2OHCuOH2
- 23. Multiple ChoiceThe chemical formula for tin (IV) oxide is writtenSn2O4Ti2O4SnO2TiO2
- 24. Multiple ChoiceAmmonium phosphate is written asNH4PO4NH3PO4(NH4)3PO4NH-3PO+1
- 25. Multiple Choicehexasulfur heptoxide is written asS6O76S 7O7S 6OS7O6
- 26. Multiple ChoiceWhich type of reaction is Al + O2 → Al2O3?compositiondecompositionsingle replacementcombustion
- 27. Multiple Choice
Which is the correctly balanced equaition?
Cl2 + 2NaI → 2NaCl + I2
Cl2 + 2NaI → NaCl + 2I2
Cl2 + NaI → NaCl + I2
2Cl2 + NaI → 2NaCl + I2
- 28. Multiple ChoiceHow many O's are in Al₂(SO₄)₃412724
- 29. Multiple ChoiceWhich of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O34Fe + 3O2 -> 2Fe2O32 Fe + 3O2 -> Fe2O64 Fe + O6 -> 2Fe2O3None of the options are correctly balanced. - 30. Multiple ChoiceWhich of the following reactions is balanced?2CH4 + O2 -> CO2 + H2OCH4 + 2O2 -> CO2 + H2OCH4 + 2O2 -> CO2 + 2H2ONone of the chemical equations are balanced.
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