Acid and bases

Question 1

H2 No3 
What is the name of this?
Is it a acid or base? 
What PH?
What salt does it make?

Answer 1

Nitric acid
Acid
PH 2
Nitrate

Question 2

NaOH
What is this?
Is it base or acid
What PH

Answer 2

Sodium hydroxide
Base
PH 8

Question 3

Magnesium forms what ion and why.

Answer 3

Mg forms a 2+ ion as it loses 2 electrons to complete its outer valence shell as electrons are negative and they are losing electrons it becomes a 2t charge. 12 protons - 10 electrons = 2+ charge

Question 4

Acid + carbonate makes

Answer 4

Salt + water + carbon dioxide

Question 5

Acid + base makes

Answer 5

Salt + water

Question 6

When powdered is put in instead of solid same thing but just powder and solid 2 different times. How does the powder a faster reaction

Answer 6

Powder has more surface area so more room to move around for the particles concluding that more collisions occur per second

Question 7

How does temperature fasten the reaction

Answer 7

The particles have more activation energy and are moving round faster so they have more collisions per second

Question 8

How does concentration affect the reaction

Answer 8

More particles in the same volume to be able to react with leading to faster reaction rate and more collisions per second

Question 9

If blue litmus paper stays blue in a solution and red litmus paper turns blue what is the solution a base, acid or neutral

Answer 9

A base as a base indicates the colour blue and turns red litmus paper blue

Question 10

What is the solution when red litmus paper stays red and blue litmus paper turns red, is it a acid, base, or neutral

Answer 10

The solution is a acid as red indicates a acid and the blue litmus papers turns red indicating a acid

Question 11

What is the solution when red litmus paper stays red and blue litmus paper stays blue

Answer 11

The solution Is neutral as both litmus papers stay the same indicating neutral solution

Question 12

What ions are in a solution with a PH of 1

Answer 12

All H+ ions in solution no OH ions in solution indicating a strong acid

Question 13

What ions in solution with PH 7

Answer 13

There are both H+ ions and OH - ions and both ions have equal amounts in solution indicating neutral solution

Question 14

What ions in solution with PH 14

Answer 14

OH- ions are the only ions in solution and no H + ions indicating a strong base

Question 15

On a graph what does a steep line mean in a reaction

Answer 15

The steeper the line the faster the successful reactions are

Question 16

What are the steps in making a salt

Answer 16

1. Heat acid so particles have enough energy to make a sufficient successful collision
2. Add a base to acid so reaction can occur
3. Filter off excess add universal indicator in to see if solution is neutral- green. Add more base if to red/ yellow and add more acid if to blue.
4. Put in.evaporating dish and leave in sun for liquid to evaporate and solution to form neutral salt crystals

Question 17

Period means what for electrons

Answer 17

How many electrons in outer shell

Question 18

The 3 step guide for ph and ions in solution

Answer 18

Colour
PH
Ions in solution

Question 19

4 steps for salt making

Answer 19

Combine
Heat
Neutralisation
Evaporation

Question 20

Metal + acid

Answer 20

Salt + hydrogen

Question 21

Metal + oxygen

Answer 21

Metal oxide

Question 22

Metal + water

Answer 22

Metal hydroxide + hydrogen

Question 23

What is the name of HCL is it a acid or base and what PH?

What salt does it make?

Answer 23

Hydrochloric acid, it is an acid with PH 2. Makes the salt chloride