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Answers
Answer:
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Explanation:
THE FORMULA OF ATOMIC OXYGEN IS (O)
THE FORMULA OF MOLECULAR OXYGEN IS O₂
Molar mass: 31.999 g/mol
1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g
Sodium/Atomic mass
22.989769 u
Atomic number: 11
Symbol: Na
Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
The symbol for a sodium ion is Na+1 or Na+. Sodium is an electropositive element with atomic number 11.
Sodium chloride/Molar mass
58.44 g/mol
The formula of Sodium chloride is NaCl .
WATER : Molar mass: 18.01528 g/mol
Formula: H2O
A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets.
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Answer:
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Explanation: