ACIDS, BASES AND SALTS

ACIDS, BASES AND SALTS

CLASS 2: 6.2-6.4

Multiple Select

Solution with pH value less than 7 is

• acidic

• neutral

• alkaline

Multiple Choice

The higher the concentration of hydrogen ions, H+,

• the lower the pH value

• the higher the pH value

Multiple Choice

weak alkali......

• Ionises partially in water

• Ionises completely in water

Multiple Select

example of strong alkalis

• NaOH

• NH3

• KOH

Multiple Choice

complete this equation

2HCl + CaCO3 -->

• •CaCl2 + CO3 + H2

• •CaCl2 + CO2 + H2O

Multiple Choice

•Alkali + ammonium salt

• salt + water + ammonia gas

• salt + ammonia gas

Poll

I can achieved learning objective for today's lesson

• 90-100%

• 60- 80%

• below 50%