Chemical Formulas and Reactions

The video tutorial explains how to predict products from acid-base reactions. It provides step-by-step instructions on writing formulas for acids and bases, predicting products, balancing equations, and naming the products. Two examples are given: hydrochloric acid with sodium hydroxide and nitric acid with calcium hydroxide. The tutorial emphasizes the importance of balancing chemical equations and correctly naming ionic compounds.

What is the first step in predicting products from acid-base reactions?

• Name the products

• Write the formulas for the acids and bases

• Determine the reaction type

• Balance the equation

When hydrochloric acid reacts with sodium hydroxide, what is one of the products formed?

• Sodium chloride

• Calcium nitrate

• Ammonium sulfate

• Potassium bromide

What type of acid is nitric acid classified as?

• Binary acid

• Ternary acid

• Organic acid

• Inorganic acid

What is the charge of the nitrate ion in nitric acid?

• -2

• +2

• -1

• +1

What is the formula for calcium hydroxide?

• CaOH

• Ca(OH)2

• Ca2OH

• CaO2H

In the reaction between nitric acid and calcium hydroxide, what is the resulting salt?

• Calcium chloride

• Calcium nitrate

• Sodium nitrate

• Potassium sulfate

What is the purpose of balancing a chemical equation?

• To make sure the number of atoms for each element is equal on both sides

• To increase the reaction rate

• To change the products formed

• To ensure the equation looks neat

What does the Roman numeral in a chemical formula indicate?

• The number of atoms

• The state of matter

• The charge of the element

• The type of bond

What is the chemical formula for water?

• OH2

• H2O2

• HO2

• H2O

Why don't we use prefixes in naming ionic compounds?

• Because they are not necessary

• Because ionic compounds are always simple

• Because they are only used in covalent compounds

• Because the charges determine the ratio of ions