Practicals

Question 1

Which group does halogen react vigorously with? (Group on the periodic table)

Answer 1

group 1

Question 2

What is a displacement reaction?

Answer 2

It is the displacement of one element by another. The more reactive element displaces the less reactive element in a compound.

Question 3

What are 3 possible observations during any chemical reaction?

Answer 3

Colour change, bubbles, smell, smoke etc…

Question 4

Reactions that took place -

Chlorine + potassium chloride
Chlorine + potassium brome
Chlorine + potassium iodide
Bromine + potassium chloride
Bromine + potassium bromide
Brome + potassium iodide
Iodine + potassium chloride
Iodine + potassium bromide
Iodine + potassium iodide

What are the word equations for the first 2?

Answer 4

Chlorine + potassium bromine —> potassium chloride + bromine
Chlorine + potassium iodine —> potassium chloride + iodine

Question 5

Will chlorine water react with lithium flouride?

Answer 5

They won’t as the atoms are stable

Question 6

What are some safety measures you should use during experiments?

Answer 6

Goggles, gloves, labcoat etc…