Which element(s) are not balanced in this equation?

Chemistry

2 answers:

zhenek [66]4 years ago

8 0

The correct response would be A. Only the Fe is unbalanced, all of the other elements are balanced.

IRINA_888 [86]4 years ago

6 0

Check every element at both sides

Element left side right side conclusion

Fe 2 1 not balanced
O 3+3=6 3*2=6 balanced
C 3 3 balanced

Answer: only Fe is unbalanced (2 atoms at the left side and 1 atom at the right side)

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Intermolecular forces dipole differences london dispersion

loris [4]

33233728793278237876548742787874578378572098-2932-=93788784787489

8 0

3 years ago

How do you do these?

Agata [3.3K]

Solve these problems like weighted averages:

The first one:

Multiply the masses (isotope numbers) by the decimal form of the percentage. Add them

0.076 (6) + 0.924 (7) = 6.924

The second one:

0.2 (10) + 0.8 (11) = 10.8

If you think about it, these answers make sense. 6.924 is much closer to 7 than to 6 (since there's a lot more lithium-7 than there is lithium-6). 10.8 is closer to 11 than to 10.

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3 years ago

Which of the following explains how movement of material within Earth causes volcanic eruptions?

BigorU [14]

Answer: c

Explanation: bc

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3 years ago

Complete the transmutation equation below. Assume that there is only one unknown product. Np93239→Pu94239+?

aliya0001 [1]

I have attached the answer. hopefully, i read the problems correctly. let me know if I did not.

both problems are an example of beta decays. when an atoms' atomic number is increased by one. this is symbolized with -1 e