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15
×
What kind of acid is in the atmosphere of Venus?
sulphuric acid (due to volcanic activity)
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15
×
A substance contains an excess of OH- ions. What is its pH?
It is alkaline, so it is higher than 7.
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15
×
Name a pH indicator other than litmus or Universal Indicator.
methyl orange or phenolphthalein (also hydrangea flowers, turmeric, and anthocyanins)
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thief
Give points!
5
10
15
20
25
×
shark
Other team loses 20 points!
Okay!
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rocket
Go to first place!
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banana
Go to last place!
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seesaw
Swap points!
Oops!
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shark
Other team loses 10 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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banana
Go to last place!
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25
×
Give an exception to the rule that "Oxides of non-metals are acidic oxides."
Water. It can be considered hydrogen oxide and a neutral oxide.
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15
×
What is the most accurate method to measure pH?
Use a pH meter which uses an electrode to measure pH electrically.
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15
×
Acids have a pH of _____ than __.
less than 7
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15
×
Which acid is present in orange juice?
citric acid
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baam
Lose 20 points!
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shark
Other team loses 20 points!
Okay!
×
shark
Other team loses 20 points!
Okay!
×
thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
Oops!
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gift
Win 20 points!
Okay!
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rocket
Go to first place!
Okay!
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baam
Lose 10 points!
Oops!
15
×
What acid is present in vinegar?
acetic acid (ethanoic acid)
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15
×
What adjective means "can eat through material"
corrosive
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15
×
Universal Indicator is green in the presence of a substance. What does this indicate?
The substance is neutral.
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15
×
How can we use litmus paper to test the pH of gases?
The litmus paper must be damp.
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15
×
Metals form oxides that are solids. If they dissolve in water, these oxides give _______ solutions.
alkaline
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