Acid Base Reactions

Acid Base Reactions

Follow this presentation to complete today’s session.

Watch the videos (pause and take notes throughout the outline) and then complete the questions.

READ THE INFORMATION SLIDES AND VIEW VIDEO

Take notes and pause and completely look at the video before going on to questions.

Neutralization of Acids- copy these in physical books.

Multiple Choice

An acid reacts with a metal carbonate to produce

• Salt, water and hydrogen gas

• Salt, water and carbon dioxide

• Limewater

• Salt and water

Multiple Choice

Which salt will be produced if magnesium react with hydrochloric acid?

• Magnesium oxide

• Magnesium sulfate

• Magnesium sulfide

• Magnesium chloride

Multiple Choice

What gas is produced when a metal reacts with an acid?

• Water vapour

• Acidic gas

• Hydrogen

• Nitrogen

Multiple Choice

Zinc + nitric acid --> ?

• zinc sulfate + water

• zinc sulfate + hydrogen

• zinc nitrate + hydrogen

• zinc chloride + water

Multiple Choice

Magnesium + sulphuric acid --> ?

• magnesium sulfate + water

• magnesium sulfate + hydrogen

• magnesium chloride + hydrogen

• magnesium chloride + water

Multiple Choice

Iron + Hydrochloric acid --> ?

• iron sulfate + water

• iron + hydrogen

• iron chloride + hydrogen

• iron chloride + water

Multiple Choice

Acid + Metal --> ?

• Salt + Water

• Salt + Hydrogen

• Salt

• Hydrogen

TRY TO WORK THESE OUT FROM INFORMATION IN VIDEO

Multiple Choice

Which salt is formed in a reaction between HBr and LiOH?

• LiBr

• BrLi

• NaCl

• NaOH

Multiple Choice

What characteristic of a substance has to change in order for it to act as an indicator?

• concentration

• color

• temperature

• taste

Multiple Choice

Sodium hydroxide (NaOH) is known as a strong base. Which statement is true about NaOH after dissolving in solution?

• few OH- ions; many NaOH molecules

• many OH- ions; few NaOH molecules

NEUTRALIZATION REACTION

Multiple Choice

A chemical reaction between an acid and a base, forming a salt and water is known as ____.

• ionization

• concentration

• neutralization

• animation

Multiple Choice

The pH of 4 solutions were measured in a lab. Which solution is the most acidic?

Multiple Choice

Predict the products of this reaction.

HCl + Ca(OH)2

• NaCl

• CaCl2

• CaCl2 + H2O

• H2O

PH SCALE

MEASURES THE ACIDITY OR BASICITY OF A SUBSTANCE AND RANGES FROM 0- 14

WATCH THE TWO VIDEOS THAT FOLLOW TO PROCEED

Multiple Choice

As the pH of a solution gets lower, the solution becomes more _____.

• acidic

• basic (or alkaline)

• neutral

• ionic

Multiple Choice

What does pH measure?

• strength of an acid

• strength of a base

• strength of both acids and bases

• concentration of H+ ions

Multiple Choice

Identify the products of the following reaction:

CaCO3 + 2HCl -->

• Calcium hydrogen carbonate and chlorine gas

• Calcium chloride and water

• Calcium oxide, carbon dioxide and water

• Calcium chloride, carbon dioxide and water

Multiple Choice

What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH^-) ions?

• below 7

• 7

• above 7

• 0-14

Multiple Choice

When you place blue litmus paper into an unknown clear solution, the blue litmus paper turns red.

Which of the following represents the most logical conclusion?

• The substance has a pH value of "2".

• The substance is a base.

• The substance has a pH value of "7".

• The substance is acidic.

Multiple Choice

Acidic solutions exhibit a higher ratio of H₃O⁺ ions, known as...

• neutrons

• hydroxide

• electrons

• hydronium

Multiple Choice

Which gas gives out a 'squeaky pop' when a lit splint is placed in it?

Multiple Choice

Magnesium + sulphuric acid --> ?

• magnesium sulfate + water

• magnesium sulfate + hydrogen

• magnesium chloride + hydrogen

• magnesium chloride + water

Multiple Choice

Iron + Hydrochloric acid --> ?

• iron sulfate + water

• iron + hydrogen

• iron chloride + hydrogen

• iron chloride + water

Multiple Choice

Acid + Metal --> ?

• Salt + Water

• Salt + Hydrogen

• Salt

• Hydrogen

Multiple Choice

Complete the following reaction:

Sulphuric acid + sodium carbonate

-->

• Carbon dioxide + water

• calcium carbonate + water + carbon dioxide

• Sodium sulphate + water + carbon dioxide

• Sodium chloride + water + carbon dioxide

Multiple Choice

Complete the following reaction:

Hydrochloric acid + magnesium hydroxide -->

• Magnesium chloride + water

• Magnesium + water

• Magnesium chloride + hydrogen gas

• Magnesium chloride + water + carbon dioxide

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