<span>Similarities:
-Physical properties can be observed or measured without changing the composition of matter.
-Physical properties are used to observe and describe matter.
</span><span>Differences;
-Chemical properties are only observed during a chemical reaction and thus changing the substance's chemical composition.
</span>
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Answer:
Decreasing the number of phospholipids
Explanation:
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D.
studying how the mayfly population affects the number of trout in a stream
Yes baking soda is dissolved in vinegar and bubbles appear is a CHEMICAL CHANGE .
Answer:
I think its D. and A hopefully that's right