Answer:
Half-lives of first order reactions
Explanation:
Notice the the half-life is independent of initial concentration. This is not the case with other reaction orders. The half-life of a first-order reaction was found to be 10 min at a certain temperature. hope this helps you :)
Yes your answer is correct the answer is 1.26
solution is moles=mass/molar mass =98.3/78=1.26
Answer:
12.89 moles
Explanation:
Before we solve the question, we have to balance the equation of the reaction first. The balanced reaction will be:
2 NO + 2 H2→ N2 + 2 H2O
There are 180.5g of N2 produced, the number of produced in moles will be: 180.5g / (28g/mol)= 6.446 moles
The coefficient of H2 is two and the coefficient of N2 is one. Mean that we need two moles of H2 for every one mole of N2 produced. The number of H2 reacted will be: 2/1 * 6.446 moles = 12.89 moles
1. minimize
2. not buy the insurance
3. too expensive in relation to the value of his vehicle
Answer:
I believe the answer is A. it could be A or D. But I trust A. sorry if i'm wrong