Chemistry, 06.09.2021 14:00 ayoismeisjjjjuan

Bromine is an element in Group VII of the Periodic Table. Write the formula for a molecule of bromine,
A teacher placed a small amount of liquid bromine in the bottom of a scaled gas jar of air. After two
minutes, brown fumes were seen just above the liquid surface. After one hour the brown colour had spread
completely throughout the gas jar.
liquid
bromine
start
after 2 minutes
after 1 hour
Use the kinetic particle theory to explain these observations.
Magnesium salts are colourless but Group VII elements are coloured.
An aqueous solution of magnesium bromide reacts with an aqueous solution of chlorine.
magnesium bromide + chlorine → magnesium chloride + bromine
State the colour change in this reaction.
A solution of magnesium bromide will not react with iodine. Explain why there is no reaction.
The structures of some compounds containing bromine are shown below.
D
Na
Br. Na
Br
Br
Br
BE
Br
H--Br
Br
Na Br
Zn
Na
Zn
Br
Na
Br
Na
Br
Zn2
Zn
Br
Na Br- Na
i Write the simplest formula for the substance with structure A.
ii State the name of the substance with structure D
ili State the type of bonding within a molecule of structure C.
iv Which two structures are giant structures?
3 dimensional structure
Why does structure A conduct electricity when it is molten?
aromso. net
coralent
(Cambridge IGCSE Chemistry 0620/2, Question 6(0,C-7) June 20
Chapter 3: Elements and comp

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 02:00, issachickadi

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Answers: 1

continue

Chemistry, 22.06.2019 09:20, domp40

Explain that newton first law, second law and third law of motion?

Answers: 2

continue

Chemistry, 22.06.2019 16:00, matt16913

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Answers: 1

continue

Chemistry, 22.06.2019 20:00, edamite12

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

Answers: 1

continue

You know the right answer?

Bromine is an element in Group VII of the Periodic Table. Write the formula for a molecule of brom...