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Chemistry
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What are the oxidation numbers of each element in these examples: a) H2SO4 b) N2 c) NH4+

a) H2SO4 ANSWER: H: +1 S: +6 O: -2 b) N2 ANSWER: N: 0 (all elements not within a compound have an oxidation number of 0 eg I2, O2, K) c) NH4

Answered by Georgia B. • Chemistry tutor
1799 Views

What is equilibrium in regards to chemical reactions?

A + B -----> AB In the chemical reaction above, reactant A reacts with reactant B to form product AB. However, it is a common misconception that this reaction only goes in the forward direction (which ...

Answered by Beatrice H. • Chemistry tutor
2489 Views

c) What does the rate of reaction depend on? (2 marks)

  1. Collision frequency of reacting particles
  2. Energy transferred during the collision
Answered by Claire P. • Chemistry tutor
1982 Views

b) What 3 factors can increase the rate of reaction? (3 Marks)

b) A catalysis, increased temperature, increased concentrationb

Answered by Claire P. • Chemistry tutor
1979 Views

a) Complete the balanced symbol equations: (2 marks) H2SO4 + NaOH  HCl + Mg(OH)2 

H2SO4 + 2NaOH --> 2H2O + Na2SO4
2HCl + Mg(OH)2 --> 2H2O + MgCl2

Answered by Claire P. • Chemistry tutor
3475 Views

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