Answer:
B
Explanation:
because running does not deal with bending or twisting of the body
The reason why iron oxide has more mass than the iron is because Iron oxide has oxygen atoms, and pure iron does not.
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this
observation?
(A)Iron oxide has oxygen atoms, and pure iron does not.
(B)The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron.
(C)The iron atoms in iron oxide have more mass than pure iron.
(D)There are more iron atoms in iron oxide than in pure iron.
When a chemical reaction takes place, other atoms are combined with pure elements to form compounds. This addition of another atom (oxygen) after reaction makes iron oxide formed heavier than pure iron.
Iron oxide is a chemical substance formed when pure iron rusts. The formation of iron oxide is a chemical reaction.
Hence, the correct answer to the question is; the iron is heavier because Iron oxide has oxygen atoms, and pure iron does not.
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Congruence simply means harmony or compatibility. The shapes are congruent when they have the same shape and size.
Your information is incomplete. Therefore, an overview of congruence will be given. Two geometric figures are congruent if it's possible to superpose one of them on the other one.
When two similar shapes are placed above each other, and they cover each other, then they are said to be congruent.
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C. We take subject tests to demonstrate our strengths to increase the chances of admission into a particular school in a university, such as the school of engineering.