Team 1
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Team 2
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Teams
Name
Score
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baam
Lose 20 points!
Oops!
×
gold
Win 50 points!
Okay!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 10 points!
Oops!
15
×
What adjective is the opposite of "concentrated"?
dilute
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Check
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monster
Reset all scores!
Oops!
×
shark
Other team loses 15 points!
Okay!
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fairy
Take points!
5
10
15
20
25
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banana
Go to last place!
Oops!
15
×
A substance contains an excess of H+ ions. What is its pH?
It is acidic, so it is lower than 7.
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Check
15
×
What adjective is the opposite of "dilute"?
concentrated
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Check
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boom
Lose 50 points!
Oops!
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magnet
Take 10 points!
Okay!
×
rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
15
×
The more acidic the solution, the ______ the pH.
lower
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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
×
Name a pH indicator other than litmus or Universal Indicator.
methyl orange or phenolphthalein (also hydrangea flowers, turmeric, and anthocyanins)
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15
×
What adjective means "can eat through material"
corrosive
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15
×
Alkalis turn litmus paper ______.
blue
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15
×
Non-metals generally form _______ oxides that dissolve in water to form _______ solutions.
acidic
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15
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How can we use litmus paper to test the pH of gases?
The litmus paper must be damp.
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15
×
What acid is present in vinegar?
acetic acid (ethanoic acid)
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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
×
Metals form oxides that are solids. If they dissolve in water, these oxides give _______ solutions.
alkaline
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