Counting Atoms

Front

What is the number of Nitrogen (N) atoms in the compound 2(NH₄)CrO₄?

Back

2

Front

How many Magnesium (Mg) atoms are present in 10(MgCl₂)?

Back

10

Front

How many total atoms are in the molecule H₂SO₄?

Back

7

Front

In the reaction 2H₂ + O₂ → 2H₂O, what are the reactants?

Back

2H₂ + O₂

Front

What is the number of Nitrogen (N) atoms in the compound (NH₄)₂CrO₄?

Back

2

Front

Define a chemical formula.

Back

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound or molecule.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in the molecule.

Front

What is the total number of atoms in the compound Ca(NO₃)₂?

Back

9

Front

How do you determine the total number of atoms in a compound?

Back

Add the number of atoms of each element, considering their subscripts.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.