ACID, BASE, SALT AND ELEMENT EXERCISES

Which substance feels slippery and tastes bitter?

• soap

• vinegar

• sand

• sugar

What are the different types of salts?

• rock salt

• pink salt

• table salt, sea salt, kosher salt, Himalayan pink salt

• black salt

Name an element with the symbol 'Na'.

• Nitrogen

• Neon

• Sodium

• Nickel

What does the pH scale measure?

• Volume of a substance

• Acidity or alkalinity of a substance

• Temperature of a substance

• Weight of a substance

What happens in a neutralization reaction?

• A base reacts with an acid to form water and a salt.

• A neutral substance reacts with an acid to form a base.

• An acid reacts with a base to form water and a salt.

• An acid reacts with a base to form water and sugar.

What color does litmus paper turn in the presence of an acid?

• Blue

• Red

• Green

• Yellow

Examples of acids are....

• Potassium hydroxide (KOH)

• Hydrochloric acid (HCl)

• Calcium hydroxide (Ca(OH)2)

• Sodium hydroxide (NaOH)

How do acids react with metals?

• Acids repel metals, preventing any interaction

• Acids neutralize metals, forming inert compounds

• Acids attract metals, causing them to dissolve

• Acids donate hydrogen ions to metals, forming metal salts and releasing hydrogen gas.

What is the pH of a neutral solution?

• 10

• 8

• 5

• 7

The group of nonmetallic elements below is....

• H, Ca, O, S

• C, O, P, S

• K, Na, Cu, Fe

• B, As, Ge, Si