Neutralisation

Toothpaste contain .................. that neutralize acid formed by bacteria.

• alkali

• acid

• antacid

• slaked lime

Tags

NGSS.MS-PS1-2

Bee sting contain ............................ and can be neutralize using bicarbonate soda.

• alkali

• acid

• vinegar

• soda

Excess acids in stomach can be neutralized using ............

• antacid

• vinegar

• slaked lime

• hydrochloric acid

What type of reaction occurs when you react an acid with an alkali?

• combustion

• decomposition

• no reaction

• neutralisation

What colour is Universal indicator when the solution is neutral?

• Red

• Green

• Blue

• Purple

Why is toothpaste alkaline?

• It can neutralise strong alkaline in

  your mouth

• It can neutralise acid in

  your mouth

• It can refresh your teeth

• Toothpaste is not alkaline.

Where does the acid in you mouth come from?

• From stomach

• From stomach acid

• From the millions of

  bacteria of mouth

• From the teeth

What number do you get if you neutralise pH 1 - pH 14 ?

• pH 9

• pH 4

• pH 6

• pH 7

if have acid pH 4 what do you have to add to it to make it pH 7 ?

• alkaline pH 10

• alkaline pH 9

• alkaline pH 14

• alkaline pH 12

from what number to what number does alkali on the pH scale ?

• 1-7

• 8-14

• 8-12

• 8-100