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Chemistry C2 Unit 2 GCSE Revision (AQA) Flashcards | StudBud

Explore/Chemistry C2 Unit 2 GCSE Revision (AQA)

Chemistry C2 Unit 2 GCSE Revision (AQA)

11 terms·StudBud Administration·365 plays

This is a good revision source for #Chemistry. This is only on unit two but has the entire course profound

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Questions 11

Answers

1
What percentage of Carbon is in CH₄ (C-12 H-1)
65%
40%
75%
20%
2
Balance this equation: H₂ + Cl₂ → HCl
H2 + Cl2 → HCl2
H2 + Cl2 → 2HCl
Ugh MATH!!!
H2 + Cl2 → HCl2
3
What are isotopes
Compounds with extra neutrons
Elements with extra electrons
Elements with different relative formula mass
Elements with extra protons
4
What is an Endothermic reaction?
A reaction which releases radiation
A reaction which takes in radiation
A reaction which takes in heat
A reaction which releases heat
5
What is an example of a reversible reaction
ammonium chloride → ammonia + hydrogen chloride
ammonium chloride ← ammonia + hydrogen chloride
ammonium chloride ⇄ammonia + hydrogen chloride
ammonium chloride ↓ ammonia + hydrogen chloride
6
What does biodegradable mean?
can't decompose
can't be asked
this isn't even chemistry
wow
7
What is a delocalised electron
stuff that conducts electricity
free electrons
biodegradable substance
free protons
8
What is Covalent bonding?
Where you combine electrons
When you transfer electrons
Where atoms share electrons
Where atoms divert forces
9
Why is alloy more STRONGER than pure metal
Because the structure is layered
Because it is shiny
Because the pure metals have layered structure
Because it STEELS their bonding
10
Is Bailey Moss good at science
he's too mysterious
no
yes
kinda
11
What is a giant ionic structure
layers!!!
Giant lattice structure
macromolecules
fullerenes