Advertisements
Advertisements
Question
What is the difference between 2H and H2 ?
Advertisements
Solution
H2 is the chemical formula of hydrogen gas. It denotes that two atoms of hydrogen chemically bond to give a molecule of hydrogen gas.
2H denotes the presence of two atoms of hydrogen, which are not chemically bonded.
APPEARS IN
RELATED QUESTIONS
What is meant by the term chemical formula?
Write the chemical formula of the Calcium carbonate.
Fill the following blanks with suitable words :
In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................
Write down the formulae for the following compounds :
Magnesium hydroxide
Give the empirical formula of Glucose C6H12O6 .
Name the element in the compound and give the formula of the following compound:
Acetic acid
Write the formula of the following compound:
Sodium sulphite
Write the formula of the following compound:
Copper [II] sulphide
Which of the following represents a correct chemical formula? Name it.
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
