Hey!
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Answer:
Substance
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Explanation:
Water is a substance created with oxygen and hydrogen.
A mixture is when more than one substance are mixed together.
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Hope This Helped! Good Luck!
Answer:
a). Single replacement.
Explanation:
Because one element replaces another element in a compound
Answer:
It is not correct because the amplitude of the waves can be bigger than others and the graph can be going up and down
Explanation: I got the question right
Answer:
c
Explanation:
it's the only one that makes sense
