Answer:
See below
Explanation:
1 year is how many seconds ?
1 year :
365 days/ yr * 24 hours / day * 60 min/ hour * 60 seconds/ min
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see how the 'days' 'hours' 'min' all cancel and you are left with
'seconds' / 'year' ? = 31 536 000 seconds/year
B.) Heterogeneous
The prefix homo is referred to meaning the same or equal
Changes. the dependent variable is affected by the independent variable
the answer to the first one is D and the second one is the first one
Ans: grinding one of the reactants into a powder.
this increases the surface area and hence there would be more chances of collisions happening. therefore reaction rate would increase
