Atoms are smaller than molecules, and they are also the smallest building blocks of matter. Atoms make up molecules when two or more atoms bond.
Answer:
B. A+ B → AB
Explanation:
general form of a synthesis reaction
Answer: d=2000 g/L
Explanation:
Density is mass/volume. The units are g/L. Since we are given mass and volume, we can divide them to find density. First, we need to convert kg to g.

Now that we have grams, we can divide to get density.

d=2000g/L
<span>mv^2 is a conserved quantity
so v goes as sqrt(1/m)
heavier is slower
64/4 = 16
sqrt(16) = 4
B) and D) are both correct strictly speaking - lean towards submitting D) as answer
so i would say D) </span>