Answer:
moles
Explanation:
The value of 3 in the chemical compound refers to the number of moles present of it.
Mass % of NaCl = 0.9 % (m/v)
Density of 0.9 % NaCl is about 1.0 g/mL
Volume of NaCl in mL :
= 11.25 mL NaCl
Answer: Option (b) is the correct answer.
Explanation:
As on increasing the temperature, the molecules gain more kinetic energy due to which they tend to collide and move rapidly from one place to another.
Thus, we can conclude that when temperature is increased, the kinetic energy of the molecules increases.
This means that temperature is directly proportional to the average kinetic energy of a gas.
You can simply subtract the atomic number from the mass number in order to find the number of neutrons. if the atom is neutral, the number of electrons will be equal to the number of protons.
