A speed boat, at full throttle, can go 65.0 miles in 1.5 hours. What is the average speed of the boat?

The average speed = 43.33 miles per hours(mph)

Given

distance = 65 miles

time = 1.5 hours

Required

The average speed

Solution

The average speed : distance traveled divided by time taken or total distance divided by total elapsed time

Can be formulated :

avg speed = distance : time

avg speed = d : t

Input the value :

avg speed = 65 miles : 1,5 hours

avg speed = 43.33 miles per hours(mph)

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

the answer would be b i believe