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- 1. Multiple ChoiceIdentify this type of reaction:
Al (s) + HCl (aq) → AlCl3 (aq) + H2 (g)PrecipitationSynthesisCombustionSingle Replacement - 2. Multiple Choice
The Law of Conservation of Mass states that the total mass of the reactants should be
More than the mass of the products
Equal to the mass of the products
Ignored during the reaction
Less than the mass of the products
- 3. Multiple Choice
Which of the following reactions involves the ions of two compounds exchanging places to form two new compounds?
Synthesis
Double Displacement
Combustion
Single Displacement
- 4. Multiple Choice
When balancing equations, the rule is that you can only add, change, and remove ____________
Coefficients
Mass
Subscripts
Elements
- 5. Multiple ChoiceThe formation of water is an example of a ________ reaction because two simple substances (H and O) combine to produce a new compound (H2O).Single DisplacementDecompositionDouble ReplacementSynthesis
- 6. Multiple ChoiceThe following reaction is an example of what reaction type?
CoCO3 → CoO + CO2SynthesisDecompositionSingle ReplacementDouble Replacement - 7. Multiple Choice
Combustion reactions will always involve
Oxygen and a solid
Liquid nitrogen and heat
Oxygen and heat/energy
CO and H2O
- 8. Multiple ChoiceWhich of the following is an example of synthesis?Na + Br2 --> NaBrKClO3 --> KCl + O2HgO + Cl2-->HgCl + O2Cl2 + NaBr --> NaCl + Br2
- 9. Multiple ChoiceWhich of the following is an example of decomposition?Na + Br2 --> NaBrKClO3 --> KCl + O2HgO + Cl2-->HgCl + O2Cl2 + NaBr --> NaCl + Br2
- 10. Multiple Choice
What is the correct name for Al(NO3)3?
Aluminum nitrate
Aluminum(III) nitrate
Aluminum nitrite
Aluminum nitrogen trioxide
- 11. Multiple Choice
Name this formula:
KNO3
Potassium Nitrogen Oxide
Potassium Nitride
Potassium Nitrate
Potassium (I) Nitrite
- 12. Multiple Choice
Name the compound NH4OH
ammonium hydroxide
ammonia oxyhydride
mononitrogen tetraoxihydride
hydrogen nitrate
- 13. Multiple Choice
What are the products when hydrobromic acid is mixed with sodium hydroxide
H2O and NaBr
HBr and NaOH
OBr and NaH
Na and BrOH
- 14. Multiple ChoiceThe pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?3975
- 15. Multiple ChoiceWhen dissolved in water, acids produce:basessaltshydrogen ionshydroxide ions
- 16. Multiple ChoiceIn a neutralization reaction, what are the products of a reaction between an acid and a base?Another acid and baseCarbon dioxide and a saltWater and a saltEither two acids or two bases
- 17. Multiple ChoiceThe atomic number tells you what?number of electronsnumber of protonsnumber of neutronsboth electrons and protons in an atom.
- 18. Multiple ChoiceEach column in the periodic table is called aperiodgroupclusterunit
- 19. Multiple Choice
The atoms along the staircase are calledmetalsnonmetalsmetalloidsnoble gases - 20. Multiple ChoiceWhich is a halogen?HeliumChlorineOxygenNeptune
- 21. Multiple Choice
How many Valance electrons does Iodine have?
616717 - 22. Multiple Choice
How many electrons does oxygen need to fill its outer shell?
3412 - 23. Multiple ChoiceWhat happens in ALL chemical changes?Change in state of matterA new substance is formedBubbles are producedAn explosion
- 24. Multiple ChoiceIonic Bonding involves...The transfer of protonsThe transfer of nuetronsThe transfer of electronsNone Of the above
- 25. Multiple Choice
In this chemical equation, the elements in red are the_______.
Products
Reactants
Subscripts
Coefficients
- 26. Multiple Choice
Nonmetals tend to
gain electrons
lose electrons
- 27. Multiple Choice
Metals tend to
gain electrons
lose electrons
- 28. Multiple Choice
Ions are formed when atoms...
lose or gain electrons
lose electrons
gain electrons
gain neutrons
- 29. Multiple Choice
Many ionic compounds are soluble in water.
True
False
- 30. Multiple Choice
The name for the ionic compound NaF is
Sodium fluoride
Nappium fluoride
Sodium fluorine
Fluorine sodiumide
- 31. Multiple Choice
Which of these is NOT a polyatomic ion?
OH-
CO32-
PO43-
Cl-
ClO4-
- 32. Multiple Choice
The name of FeCl₂ is
iron chloride
iron (II) chloride
iron (I) chloride
iron dichloride
- 33. Multiple Choice
LiBr is called
lithium bromine
lithium (I) bromine
lithium bromide
lithuim (I) bromide
- 34. Multiple Choice
Which of the following combinations would need roman numerals in the name?
potassium + fluorine
beryllium + oxygen
boron + iodine
lead + oxygen
- 35. Multiple ChoiceWhat is the correct formula for Sodium Oxide?NaONaO2Na2ONa2O2
- 36. Multiple Choice
What is the charge of copper in the compound: CuBr2
+1
+2
-1
-2
- 37. Multiple Choice
What is the what charge of lead in the compound: lead (IV) iodide
+1
+4
+6
-1
- 38. Multiple Choicephosphorus trichlorideKCl3PCl3K3ClP3Cl
- 39. Multiple Choicesilicon dioxideSO2NaO2SiO2SiO
- 40. Multiple ChoiceThe chemical formula of sulfur hexabromide isSBr₆S₆BrS(VI)BrS6Br
- 41. Multiple ChoiceThe chemical formula of dinitrogen textroxide isNi₂O₄NiON₂O₄NiO₂
- 42. Multiple Choice
Sodium reacts with chlorine gas to produce sodium chloride.
NaCl→ Cl + Na
Na+ CO2 → NaCO2
Na + Cl2→ NaCl
Na + Cl → NaCl
- 43. Multiple Choice
Iron reacts with solid sulfur to produce iron(II) sulfide powder.
Fe + S → Fe2S
Fe + S → FeS
Fe2 + S→ Fe2S2
Fe + S2 → Fe2S
- 44. Multiple Choice
When lead reacts with oxygen, a yellow lead(II) oxide powder is produced.
Pb + O2 → PbO
Pb + O2→ PbO2
Pb2 + O2→ Pb2O
Pb + O → PbO
- 45. Multiple ChoiceHow many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H21234 - 46. Multiple ChoiceIs this balanced?
Al + O2 → 2Al2O3YesNo - 47. Multiple ChoiceWhich number should go in the blank?
Al(NO3)3 + _ NaOH -> Al(OH)3 + 3 NaNO31230 - 48. 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
- 49. Multiple Choice
This ion is responsible for the properties of acids
Sodium ion
Hydrogen ion
Hydroxide ion
Oxide ion
- 50. Multiple Choice
This ion is responsible for the properties of bases
Sodium ion
Hydrogen ion
Hydroxide ion
Oxide ion
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