Y10CT1W11L1 Group 7: The Halogens

Y10CT1W11L1 Group 7: The Halogens

Multiple Choice

Starter: The red numbers in the image represent...

• subscripts

• coefficients

• none of the answers are correct

• I don't know

Multiple Choice

Starter: Balance this equation...

H₂ + Cl₂ --> HCl

• It is balanced

• 3 H₂ + Cl₂ --> 6 H₂Cl

• H₂ + Cl₂ --> 2 HCl

• H + Cl --> HCl

Multiple Choice

Starter: What does the Law of Conservation of Mass state?

• Matter can only be gained in a chemical reaction.

• Matter can only be lost in a chemical reaction.

• matter cannot be gained or lost in a chemical reaction.

• Matter can be gained and lost in a chemical reaction.

Multiple Choice

Starter: Balance this equation...

HgO --> 2Hg + O₂

• 2HgO --> Hg + O₂

• it is balanced

• 4 HgO --> Hg + 2 O₂

• 2HgO --> 2Hg + O₂

Multiple Choice

Starter: The blue numbers in the image represent...

• none of the answers are correct

• coefficients

• subscripts

• I don't know

Multiple Choice

Starter: Which of the following are unbalanced equations?

• CaCO₃ --> CaO + CO₂

• 2Na+ 2H₂O-->2NaOH + H₂

• PbO₂ + 2H₂-->2Pb + H₂O

• CS₂ + 3O₂ --> CO₂ + 2SO₂

Multiple Choice

Task One: Core: What kind of bonding does the group 7 elements take part in?

• ionic bonding only

• covalent bonding only

• both ionic and covalent bonding

• they are unreactive, so don't take part in bonding

Open Ended

Task One:

•Extension: Describe what you think will happen the electrons of these elements during chemical bonding.

Challenge: Compared with group 1, what do you think their trend in reactivity might be?

Multiple Choice

Task 2: What is the boiling point of fluorine?

• -7 °C

• 114 °C

• -118 °C

• -34 °C

Multiple Choice

Task 2: What is boiling point of chlorine?

• -7 °C

• 114 °C

• -118 °C

• -34 °C

Multiple Choice

Task 2: What is melting point of bromine?

• -7 °C

• 114 °C

• -118 °C

• -34 °C

Multiple Choice

Task 2: What is melting point of iodine?

• -7 °C

• 114 °C

• -118 °C

• -34 °C

Multiple Choice

Task 2: Which halogen(s) are gases at room temperature?

• fluorine only

• chlorine and fluorine

• bromine and iodine

• fluorine and bromine

Multiple Choice

Task 2: Which halogen(s) are liquids at room temperature?

• fluorine only

• chlorine and fluorine

• bromine and iodine

• bromine only

Multiple Choice

Task 2: Which halogen(s) are solids at room temperature?

• fluorine only

• iodine only

• bromine only

• bromine and chlorine

Multiple Choice

Task 3: Q1. True or False? (See image)

• True

• False

Multiple Choice

Task 3: Q2. True or False? (See image)

• True

• False

Multiple Choice

Task 3: Q3. True or False? (See image)

• True

• False

Multiple Choice

Task 3: Q4. True or False? (See image)

• True

• False

Multiple Choice

Task 3: Q5. True or False? (See image)

• True

• False

Multiple Choice

Plenary:

• A

• B

• C

• D

Multiple Choice

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• B

• C

• D

Multiple Choice

Plenary:

• A

• B

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• D

Multiple Choice

Plenary:

• A

• B

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Multiple Choice

Plenary:

• A

• B

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• D

Multiple Choice

Plenary:

• A

• B

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• D

Open Ended

Plenary

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