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Science Grade 8 Lesson Acid and Alkali
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__________ is usually sour, sharp, and tangy in taste.
Acid
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The following are contain of _____________.
acids
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This warning is known as "C___________".
Corrosive
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Lemon and lime contains ________ acid.
citric
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The following are contain of ____________.
alkali
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these are examples of ___________ ____________ found in the laboratory.
hazard warnings
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Toothpaste contains ______________ substance.
alkali
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What is the best way to do, when the skin accidentally contact in strong acid or alkali?
Wash with water to dilute or weaken the chemical.
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Mike tested a liquid substance with litmus paper, and it turned purple. This means that the liquid is a strong ________
alkali.
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__________ are often found in the cleaning materials such as bleach and detergent.
Alkalis
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