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15
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How can we make dilution of acid?(@AAA TW)
Water add to acid (or) acid add to water
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15
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Strong acids like sulfuric acid are corrosive but strong alkalis like sodium hydroxide are not corrosive?
TRUE OF FALSE
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15
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What should you do if you spill acid?
You should wash the area with lots of water.
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banana
Go to last place!
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seesaw
Swap points!
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fairy
Take points!
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25
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thief
Give points!
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15
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Mention three common acids in the laboratory?
Hydrochloric acid , sulfuric acids and nitric acid.
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15
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Describe the taste of lemons and limes?
They taste sour.
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15
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What is the main difference between a dilute acid and a concentrated acid?
A dilute acid is an acid that has been mixed with water(it had less acid and more water) //con; is more dangerous
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15
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What is acidity ?
Acidity is a measure of how acidic a substance is . It depends on how many hydrogen ions the substance produce in water.
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banana
Go to last place!
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star
Double points!
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shark
Other team loses 25 points!
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lifesaver
Give 20 points!
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baam
Lose 15 points!
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seesaw
Swap points!
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fairy
Take points!
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25
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banana
Go to last place!
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15
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If you use acid , what is safety precaution for you?
Always use Eye protection (goggles) or safety glasses when you using acid
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15
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What is an alkali?
An alkali is a base that dissolves in water and produces hydroxide ions)OH-
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20
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Describe common alkali in the laboratory?
Sodium hydroxide, potassium hydroxide and calcium hydroxide.
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10
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Acids and alkali are chemical opposite?
TRUE OR FALSE
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25
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Describe one properties of acid?
Sour taste/ pH value less than 7/ turn blue litmus paper red/ strong acid crossive
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25
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What does corrosive mean?
A substance that can damage or burn materials such as skin , metals, or other objects by a chemical reaction
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