Answer:
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Explanation:
Answer:
1) chemical indicators won't work above it's pH range so therefore it probably won't change colour.
2) the solution should be clear and colourless to see colour change.
3) indicators tend to be of low accuracy so it's not 100% reliable.
It means that you are the brother or friend of the person doing the thumping
The masses are always equal. Since matter can not be created nor destroyed, you will have the same amount of mass as you did before the reaction as you do after.
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<span>It makes a longitudinal wave because it stretches and compresses while as it slithers foward.
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