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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

GB
Answered by Georgia B. • Chemistry tutor
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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 ...

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

  1. Collision frequency of reacting particles
  2. Energy transferred during the collision
CP
Answered by Claire P. • Chemistry tutor
2169 Views

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

b) A catalysis, increased temperature, increased concentrationb

CP
Answered by Claire P. • Chemistry tutor
2164 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

CP
Answered by Claire P. • Chemistry tutor
3768 Views

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