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Please show full working out 50 points :)
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1 vote
Please show full working out 50 points :)

Please show full working out 50 points :)-example-1
User Grace B
by
5.2k points

2 Answers

2 votes

Answer:

first you subtract then you divide the equation an the you get your ansewe

Step-by-step explanation:

User Galenus
by
5.6k points
3 votes

Answer:

The answer is-2168kj/mol

Step-by-step explanation:

Formula is product-reactant

Product is B2O3+3H2O

B2O3=-1274kj/mol

3H2O=3(-286)=-858kj/mol

Reactant is B2H6

B2H6=36kj/mol

Product-reactant=-858-1274-36

=-2168kj/mol

User Smur
by
4.5k points
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