Question

In the chemical formula 3H2O, the number "3" is a Question 27 options: subscript place holder coefficient

Answer 1

Answer;

Coefficient

Explanation;

• Coefficients are the numbers in front of the chemical formulas.
• For example in 3H2O ,the three infront of the water molecule is called the coefficient.
• These numbers give two very important pieces of information about a chemical equation. The coefficients give the number of molecules (or atoms) involved in the reaction.
• Additionally, coefficient give the number of moles of each substance involved in the reaction.