Reaction to acids

Question 1

What is the ph of water

Answer 1

7

Question 2

What is the ph of a strong acid

Answer 2

1,2,3

Question 3

What is the ph of a strong alkali

Answer 3

12,13,14

Question 4

What is the ph of a weak acid

Answer 4

5,6

Question 5

What is the ph of a weak alkali

Answer 5

8,9

Question 6

True or false acid melts your skin bc it corrosive not alkali

Answer 6

False they Both are corrosive

Question 7

Name 3 neutral substances

Answer 7

Water ,blood and saliva

Question 8

Is hydrochloric acid and acid or alakli

Answer 8

Acid duh

Question 9

What colour is a strong acid(ph)

Answer 9

Red

Question 10

What colour is a strong alkali (ph)

Answer 10

Purple

Question 11

Equation :)

Answer 11

Metal + acid —>salt + hydrogen

Question 12

More equations (v=v)

Answer 12

• Calcium + hydrochloric acid –> calcium
  chloride + hydrogen
• Sodium + hydrochloric acid –> sodium
  chloride + hydrogen
• Copper + sulphuric acid –> copper sulphate +
  hydrogen

Question 13

Name the short versions of these :
Solid
Liquid
Gas
Aqueous

Answer 13

(s)
(l)
(g)
(aq)

Question 14

Complete the word equation lithium +nitric acid —>?+?

Answer 14

Lithium nitrate +hydrogen

Question 15

What chemicals are these:
HCl
NaOH

Answer 15

1) hydrochloric acid
2)sodium hydroxide

Question 16

What will happen to limewater when co2 is present

Answer 16

Becomes cloudy

Question 17

How to test for oxygen

Answer 17

In the test to identify oxygen, a glowing splint is used. The splint is held at the open end of a test tube. The glowing splint will relight if it contains oxygen.

Question 18

How to test if there is hydrogen

Answer 18

Place a lighted splint in a test tube containing the gas. If the gas is hydrogen, there will be a squeaky pop.

Question 19

How to test if there is water Vapor

Answer 19

Water or its vapour will turn cobalt chloride paper from blue to pink.