72.71 . simple google search, you shouldnt waste points
Explanation:
Round 87.073 meters to 3 significant figures. write your answer in scientific notation. step 1: 87.073 rounds to step 2: write scientific notation : meters...
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Answer:
The element formed when a radioactive element undergoes radioactive decay. The latter is called the parent. The daughter may or may not be radioactive.
Explanation:
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Answer:
C. 
Explanation:
Hello there!
In this case, according to the given chemical reaction, it turns out possible to realize there is one sulfur atom on each side of the chemical equation but two hydrogen atoms on the left and one on the right, which means the latter must be balanced in agreement to the law of conservation of mass.
In such a way, by setting a 2 on H⁺, the reaction will be balanced:

Now, we count the transfer electrons for sulfur from -2 to 0 as 2e⁻ on the right, which will match with the option C.

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