ACID BASES AND SALTS

Salts

• are formed from joining positive and negative ions.

• increase OH^- ions.

• forms a salt and water.

• increases H₂O ions.

A salt is formed when nitric acid combines with sodium hydroxide. What are present in the salt that forms?

• Sodium chloride

• sodium ions and nitrate ions

• only sodium ions

• only nitrate ions

What is the correctly written chemical formula for the ionic compound, strontium oxide?

[Hint: strontium, Sr is in Group 2]

• Sr₂O

• SrO₂

• Sr₂O₂

• SrO

Salts that are made with hydrochloric acid are called ______________.

• chlorides

• sulfates

• nitrates

• carbonates

What are the products if magnesium reacts with hydrochloric acid?

• Magnesium chloride + Hydrogen

• Magnesium sulfate + Hydrogen

• Magnesium oxide + Hydrogen

• Magnesium sulfide + Hydrogen

Tags

NGSS.HS-PS1-2

Which of the following preparation of salt is incorrect?

• acid + alkali

• acid + metal oxide

• acid + carbonate

• acid + acid

Which of the following is not a use of a salt as a food preservative?

• ammonium sulphate, (NH₄)₂SO₄ to preserve fruit jam

• common salt, NaCl to prepare salted fish

• sodium benzoate, C₆H₅COONa to preserve sauces

• sodium nitrite, NaNO₂ to preserve sausages

Which of the following is not a type of salt?

• Normal salts

• Acid salts

• Double salts

• Soluble salt

What is the colour of hydrated Copper (II) sulphate?

• White

• Blue

• Pink

• Brown

Complete the following word equation:

Metal + Acid -->

• Salt + water

• Salt + hydrogen

• Salt + Water + Carbon dioxide

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5