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15
×
Why is water neutral?
Concentrations of H+ and OH- are equal.
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25
×
How can we test a gas to see if it is CO2?
Pass it through limewater. If it turns cloudy, it is carbon dioxide.
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25
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How can we test for carbonates?
If it reacts with an acid to produce a gas (CO2) it indicates carbonates.
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25
×
Name the three reactions in which all acids take part. An acid can react with...
(1) a reactive metal (2) a base (3) a metal carbonate or metal hydrogencarbonate
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banana
Go to last place!
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rocket
Go to first place!
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rocket
Go to first place!
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lifesaver
Give 15 points!
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10
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When an acid reacts with a reactive metal, a metal carbonate, or a base, it will produce...
a salt
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boom
Lose 50 points!
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gold
Win 50 points!
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gift
Win 20 points!
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banana
Go to last place!
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25
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What are the products of magnesium reacting with nitric acid (2)HNO3(aq)?
Mg(NO3)2(aq) + H2(g)
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15
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Which of the four is the weakest alkali? (caustic soda, caustic potash, ammonia, limewater)
ammonia
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20
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What are the products of a metal reacting with an acid?
salt + hydrogen
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5
×
Do all metal oxides dissolve in water? What pH solutions do they form?
no; usually alkaline
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25
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Which metals produce hydrogen in unsafe reactions with acids?
very reactive metals like sodium or calcium
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5
×
Alkali solutions have an excess of ______ ions.
OH-
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15
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What kind of reaction is H+(aq) + OH-(aq) --> H2O(l)
neutralization
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25
×
Explain the normal method of preparing carbon dioxide in the lab.
Dilute hydrochloric acid is reacted with marble chips (calcium carbonate).
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baam
Lose 25 points!
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rocket
Go to first place!
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gift
Win 10 points!
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lifesaver
Give 20 points!
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