Answer:
He should ask an adult if they know what the solution is. if they dont, put it back and find a different cleaning solution to use
Answer:
Ne 20: 10
and
Ne 22: 12
Explanation:
Ne-20:
N = A - Z = 20 - 10 = 10 neutrons
Ne-22:
N = A - Z = 22 - 10 = 12 neutrons
N: number of neutrons
A: mass number
Z: atomic number
Answer:
a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.
Red blood cells are formed by the bone marrow in the center cavity of the bones.
