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10A molecular formula is the symbolic representation of a molecule.
Molecules of an element contain different kinds of atoms.
Knowledge of valency is necessary to write the molecular formula of a compound.
In the crisscross method, valencies are exchanged between elements.
Valency 1 is always written as a subscript in molecular formulas.
Calcium chloride has two chlorine atoms in its molecule.
Atomic weight is calculated by adding protons and electrons.
The atomic weight of magnesium is 24 amu.
Electrons have negligible mass compared to protons and neutrons.
Atomic weight is expressed in atomic mass unit (amu).
Percentage: 0%
What is the molecular formula of calcium oxide?
Which of the following represents the compound with 1 calcium atom and 2 oxygen atoms?
Which of the following represents calcium carbonate?
What is called the molecular formula?
Which information is essential to write a molecular formula?
Which method is used to write the molecular formula of compounds?
Atomic weight of an element depends on:
How many protons are present in calcium?
The atomic weight of calcium is:
Why are electrons not included while calculating atomic weight?
The symbolic representation of a molecule is called the ______\ formula.
Molecules of compounds contain different types of ______.
The method used to write molecular formulas is the ______\ method.
Valency ______ is not written in a molecular formula.
The molecular formula of magnesium oxide is ______.
The molecular formula of ammonia is ______.
The sum of protons and neutrons is called ______\ weight
Atomic weight is measured in ______.
Calcium has ______ protons in its nucleus.
The atomic weight of calcium is ______\ amu.