Answer:
Answer the last one Nuclear decay rates vary, but chemical reaction rates are constant
Explanation:
Correct me if im wrong
Answer:My answer is in the photo
Explanation:
Answer:
Average speed of helium is higher than argon.
Explanation:
The average speed of helium is higher than argon atom under the conditions specified because of lower mass of the helium atom as compared to argon atom. Average speed of an atom is inversely proportional to mass of the atom. If mass of an atom decreases, the atom moves with higher speed while on the other hand, if the mass of an atom increases the average speed of an atom decreases.
It has a very high melting point
230 in scientific notation is:
2.3 x 10^2