A.
Explanation:
There are several reasons that Carbon-12 was chosen as the standard for determining the relative mass of other atoms.
- Its abundance on earth
- Carbon-12 is a very stable isotope atom
- Its has the same number of neutrons and protons hence more ideal to use for a precise calculation of <em>amu</em> (atomic mass unit) -
The mass of an atom are based on the ¹/12 mass of Carbon-12.
Answer: The Moon appears to change shape because we see different amounts of the lit part as the Moon orbits Earth. When the Moon is between Earth and the Sun, the lit side is hidden from us. As it moves around Earth, more and more of the lit side comes into view. Then it begins to disappear again
Explanation:
College is a lot of money, which most people don't have that much money. If you get a scholarship then it's like all your problems go away. For the lower-class people, they need to work harder than the higher-class because they don't have the same privileged as the others. When you don't have the same privilege as others you need to work harder than the others.
Answer:
C.She does not want to disappoint her mother
Explanation:
I got it right
Answer:
My plans for starting a new restaurant fell <em><u>through</u></em> for lack of capital.
Explanation:
If something such as a deal, plan, or arrangement falls through, it fails to happen.
