Answer:
There are 1.9926 * 10 ^24 atoms.
Explanation:
M ( Mg ) = 80.45 g
We can find the molar mass of magnesium in the Periodic table:
M ( Mg ) = 24.31 g / mole
n = 80.45 g : 24.31 g/mole = 3.31 moles
N a ( Avogadro`s constant ) = 6.02 * 10 ^23
N = Na * n = 6.02 * 10 ^24 * 3.31 = 19.926 * 10 ^23
1. False
Search in Internet Tyndall effect and you will find that it is the light scattering by particles in a colloid or fine supension.
2. True
The oxidizing agent undergoes reduction when it oxidizes the other agent.
3. True
Unsaturated compounds (chains with double or triple bonds) react easier than saturated compounds (chains with only single bonds)
it exists as atom or ion but not as sodium molecule. So there is no any sodium sodium bonding between two sodium atoms. Sodium combines with other element or group to form compounds of sodium like sodium chloride ,sodium carbonate ,sodium sulphate etc. Sodium has symbol Na and its atomic no. is 11 .
NaCI this wht forms when sodium and choride combine
