Quiz on Chemical Reactions

ellamay947
Quiz by ellamay947, updated more than 1 year ago
ellamay947
Created by ellamay947 almost 5 years ago
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A quiz on Chemical Reactions
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Resource summary

Question 1

Question
What is the most likely PH when you mix acidic milk and alkali egg white?
Answer
  • pH2
  • pH6
  • pH7
  • pH14

Question 2

Question
What is the effect of putting a burning splint in oxygen?
Answer
  • The flame will get bigger.
  • It will make a popping sound.
  • No reaction.

Question 3

Question
Give a substance which is almost neutral/ neutral.
Answer
  • Johnson's pH 5.5 face wash.
  • Facial wash with a pH of 7.3
  • Body wash with a pH of 10

Question 4

Question
Tick the correct word equation for nitric acid reacting with sodium hydrocarbonate.
Answer
  • sodium hydrocarbonate + nitric acid = carbon monoxide + water +hydrogen
  • sodium hydrocarbonate + nitric acid = carbon dioxide + water + sodium nitrate

Question 5

Question
Tick the correct chemical equation for the chemical reaction in the clear blue flame.
Answer
  • methane + flame = fire + oxygen
  • methane + oxygen = carbon dioxide + water

Question 6

Question
Tick the correct word equation for magnesium reacting with air.
Answer
  • magnesium + flame = bright light
  • magnesium + nitrogen = magnesium nitrate
  • magnesium + oxygen = magnesium oxide

Question 7

Question
In which gas does magnesium immediately go out?
Answer
  • Air
  • Exhaled air
  • Nitrogen
  • Oxygen

Question 8

Question
Why does magnesium go out in a jar of exhaled air?
Answer
  • Because oxygen thins the flame.
  • Because carbon dioxide contains nitrogen.
  • Because the air we exhale contains carbon dioxide and carbon dioxide puts out fires.
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