Acid and Bases & Acid and Metal

BASE + ACID ----> SALT +?

• water
• oxygen
• hydrogen ion
• hydroxide ion

A drop of solution 'X' is placed on a strip of pH paper. A deep red colour is produced. The solution 'X' is

• NaOH

• HCl

• H₂O

• Na₂CO₃

Which of the following is a base?

• orange juice
• water
• vinegar
• dishwashing detergent

 Which of the following is an acid?

• shampoo
• baking soda
• orange juice
• water

Pure water has a pH of 7. Pure water _______.

• is a base
• is a neutral substance
• could be either an acid or a base
• is an acid

When an equal strength acid and base are mixed, what kind of chemical reaction occurs?

• Neutralization

• Combustion

• Oxdation

• Decomposition

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Tastes bitter.

• Acids
• Bases
• Salts
• All

Tastes Sour

• Acids
• Bases
• Salts
• All

Neutralization reactions

• formed from joining positive and negative ions 
• increases OH ions
• froms a salt and water
• increases H2O ions

Tags

NGSS.MS-PS1-5

How can you test for hydrogen gas?

• sniff it

• squeaky pop test

• add universal indicator

• add lemon water