Post-SLS: Acids & Bases

Which of the following behaves as an acid in water? Select all the apply.

The picture below shows two beakers, each containing the same volume of solution A and solution B respectively. Universal Indicator is added to both solutions. A pH scale showing the corresponding colours of Universal Indicator is shown at the bottom of the picture.

Which statements are correct?

• Both solutions are alkaline.

• Solution B is more acidic than solution A.

• Solution A has a higher H⁺ ion concentration than solution B.

• Solution B has a higher H⁺ ion concentration than solution A.

Tags

NGSS.MS-PS1-2

Which statements are correct?

Tags

NGSS.HS-PS1-7

Which metals do not react with dilute acid?

• magnesium

• zinc

• copper

• silver

Tags

NGSS.HS-PS1-1

Which is the correct ionic equation for the reaction between dilute hydrochloric acid and aqeous sodium hydroxide?

Which of the following oxides are basic in nature?

• carbon dioxide

• carbon monoxide

• calcium hydroxide

• sodium oxide

Which substances are used to increase the pH of acidic soil?

• calcium chloride

• calcium oxide

• calcium hydroxide

• sodium hydroxide

Which two substances are likely the cause of acid rain?

• CO

• SO₂

• NO₂

• O₃