Question

practice
subscripts + coefficients
· number at the beginning of a formula.
· represents the number of for that compound.
· to find the total number of atoms, multiply each of these atoms by. total atoms for this formula =

Explanation:

Step1: Identify coefficient

A coefficient is a number at the beginning of a formula. In \(2H_2SO_4\), the coefficient is \(2\).

Step2: Determine what coefficient represents

The coefficient represents the number of molecules. Here, it represents \(2\) molecules of \(H_2SO_4\).

Step3: Calculate total atoms

In one \(H_2SO_4\) molecule: \(H\) atoms \(= 2\), \(S\) atom \(= 1\), \(O\) atoms \(= 4\). Total atoms in one molecule \(=2 + 1+4=7\). Multiply by the coefficient (\(2\)). Total atoms \(=2\times7 = 14\).

Answer:

1. Coefficient
2. molecules
3. coefficient; \(14\)