Table of Contents

## What does the coefficient in front of a formula mean?

A coefficient is a number placed in front of a chemical symbol or formula. It shows how many atoms or molecules of the substance are involved in the reaction. For example, two molecules of hydrogen would be written as 2 H2, and two molecules of water would be written 2 H2O.

**What is the coefficient for water in the balanced equation?**

1 Expert Answer In order to balance these changes, the N coefficients will be 2, and S coefficients will be 3 (giving 6 plus for oxidation and 6 minus for reduction). Also, water will have a coefficient of 4, since the reactants will have 2H and 6H.

**What is the formula equation for water?**

H₂O

Water/Formula

The actual reaction to make water is a bit more complicated: 2H2 + O2 = 2H2O + Energy. In English, the equation says: To produce two molecules of water (H2O), two molecules of diatomic hydrogen (H2) must be combined with one molecule of diatomic oxygen (O2). Energy will be released in the process.

### What is the coefficient for H2O when the above equation is balanced?

The coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers is 2.

**What is represented by the coefficients that are placed in front of the formulas in a balanced equation?**

The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula. Thus, the symbol “2 NaHCO3” indicates two units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms (2 X 3= 6, the coefficient times the subscript for O).

**What is the coefficient of water H2O?**

2

Because each water molecule, H2O, contains only one oxygen atom, two water molecules must form for each oxygen molecule that reacts. The coefficient 2 in front of the H2O(l ) makes this clear.

#### What is the coefficient for O2?

Coefficient of O2 as seen is 3 .

**What is the coefficient of H2O?**

Because each water molecule, H2O, contains only one oxygen atom, two water molecules must form for each oxygen molecule that reacts. The coefficient 2 in front of the H2O(l ) makes this clear.

**What is the formula of water and why?**

The chemical formula of a molecule of water is H2O: two atoms hydrogen (H2) linked to one atom oxygen (O).

## What is the coefficient in front of H2O?

**What is the coefficient of H2O when the reaction is balanced K S H2O L → Koh AQ H2 G?**

1

The coefficient go H2 is 1 .