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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
2619 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 ...

BH
3237 Views

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
2597 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
2617 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
4326 Views

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