We always see the same side of the Moon because ______.
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The findings from the Apollo space missions to the Moon supp…
The findings from the Apollo space missions to the Moon support the idea that the Moon formed from the impact of Earth with a very large object.
The splitting apart of large isotopes into smaller ones is k…
The splitting apart of large isotopes into smaller ones is known as _____.
Atoms of an element that have different numbers of neutrons…
Atoms of an element that have different numbers of neutrons are called isotopes.
The sun belongs to this class of stars.
The sun belongs to this class of stars.
Which of the following elements is a metal?
Which of the following elements is a metal?
The octet rules states that atoms try to get ______ electron…
The octet rules states that atoms try to get ______ electrons in their outer shell.
A balanced equation is defined as one where _______.
A balanced equation is defined as one where _______.
The largest reservoir in the U. S. is ________.
The largest reservoir in the U. S. is ________.
Which of the following is NOT an example of a chemical chang…
Which of the following is NOT an example of a chemical change?