Question

what do the following symbols stand for?(a) H (b)H2 (c)2H (d)2H2
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answer fast plz!!!​

Answer 1

Answer:

H represents Hydrogen.

H2 represents 2 atoms of Hydrogen.

2H represents 2 molecules of Hydrogen.

2H2 represents 2 molecules of Hydrogen containing 2 atoms of Hydrogen

Answer 2

a) H stands for the hydrogen atom.

b) Hydrogen gas.

c) Two moles of the hydrogen atom.

d) Two moles of hydrogen gas.

• The symbol of a hydrogen atom is H and it has an atomic number of 1.
• The symbol H stands for the hydrogen atom.
• When two hydrogen atoms combine it forms hydrogen gas so, $H_2$ stands for hydrogen gas.
• 2H stands for two moles of hydrogen atoms.
• $2H_2$ stands for two moles of hydrogen gas.