9SCI 15-08-23

Match the following

• Sodium

• Metal

• Sodium chloride

• Base

• Hydrochloric acid

• Acid

• Sodium hydroxide

• Salt

What forms when an acid reacts with a base?

• Salt and Water
• Hydrogen and Oxygen
• Carbon Dioxide and Water
• Nitrogen and Oxygen

What forms when a metal carbonate reacts with an acid?

• Salt and Water
• Salt, Water and Carbon Dioxide
• Hydrogen and Oxygen
• Carbon Monoxide and Water

Match the following pH to the substance most likely to have that pH

• Viengar

• 3

• Battery acid

• 7

• Pure water

• 14

• Baking soda

• 9

• Sodium hydroxide solution

• 1

Magnesium + hydrochloric acid ->

• Magnesium chloride + hydrogen gas

• Magnesium hydroxide + chlorine
• Magnesium + chlorine
• Hydrochloric acid + magnesium

Draw the electron configuration for magnesium

Which of the following is a metal?

• Neon

• Oxygen

• Iron
• Argon

Which of the following is a noble gas?

• Oxygen
• Helium
• Hydrogen
• Nitrogen

What is the electron configuration for Calcium?

Acids release ​ ​ (a)   ions while bases release ​ (b)   ions.

• hydrogen
• hydroxide