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20
×
Why are these hydrangea flowers different colors?
Each one is a pH indicator.
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15
×
What is the formula for limewater?
CaOH (calcium hydroxide)
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15
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Which letter is bases and which letter is alkalis?
A is alkalis. B is bases.
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5
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What kind of reaction occurs when an acid is mixed with a base?
a neutralization reaction
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thief
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25
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seesaw
Swap points!
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fairy
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baam
Lose 15 points!
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10
×
What is the formula for lye (caustic soda)?
NaOH (used in making paper, soaps, and in cleaners)
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20
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How can we summarize a neutralization reaction?
acid + base -> salt + water
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20
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Which gas is used in the Haber process to manufacture ammonia and fertilizers?
nitrogen
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15
×
What is the formula for ammonia?
NH3
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heart
Other team wins 20 points!
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gift
Win 10 points!
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shark
Other team loses 20 points!
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thief
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25
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monster
Reset all scores!
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magnet
Take 25 points!
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rocket
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thief
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20
×
Name one of the substances commonly referred to as "lime".
calcium oxide, calcium hydroxide, calcium carbonate=limestone, or chalk
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20
×
How can excessively acidic soil be dealt with?
It can be neutralized with lime (calcium oxide, calcium hydroxide, calcium carbonate=limestone, or chalk).
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15
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Most bases are insoluble in water. Name a common alkali, a base that IS soluble.
sodium hydroxide, potassium hydroxide, calcium hydroxide (limewater), ammonia (ammonium hydroxide)
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trap
No points!
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gift
Win 15 points!
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rocket
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thief
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25
10
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What substance has the formula NH3?
ammonia
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