1.- Sabemos que los isótopos más estables del azufre son 3. El S-32, S-33 y S-X. Si la masa atómica promedio del azufre es 32,09u y las abundancias relativas del azufre son 95% para el
S-32; 1% para el S-33 y 4% para el S-X. Averigua el número másico del azufre S-X.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

What will most likely happen when two bromine atoms bond together?