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15
×
What is the formula for limewater?
CaOH (calcium hydroxide)
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15
×
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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thief
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25
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rocket
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gift
Win 25 points!
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baam
Lose 15 points!
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15
×
What is the formula for ammonia?
NH3
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15
×
Each plant grows best in certain pH soils. Which prefers more acidic soil, potatoes or onion?
potatoes (prefer 4.5-6.0, whereas onions prefer 6.0-7.5)
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thief
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gift
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rocket
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thief
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10
×
What substance has the formula NH3?
ammonia
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10
×
What do you call a base that is soluble in water?
an alkali
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20
×
Why are these hydrangea flowers different colors?
Each one is a pH indicator.
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thief
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25
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gift
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fairy
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banana
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5
×
What is NaOH?
sodium hydroxide (lye)
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10
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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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Which gas is used in the Haber process to manufacture ammonia and fertilizers?
nitrogen
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baam
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seesaw
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rocket
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banana
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5
×
What is KOH?
caustic potash (potassium hydroxide)
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10
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A flue-gas desulfurizer reduces emissions of what gas?
sulfur dioxide
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