Answer:
the answer would be runner A ,because they were ahead of all the other runners and runner A got there before the other runner so runner A has the fastest average speed
Explanation:
Answer:
2523.23 cal / g
Explanation:
Mass = 6.80g
Temperature increase (T2 - T1) = 2.25
Heat capaity of calorimeter = 32.00kJK-1 = 7.64818 KcalK-1 ( Converting to calories by multiplying by 4.18)
Heat capacity = 7648.18 cal (converting to cal by mutltiplying by 1000)
Heat capacity = Heat Supplied / Temperature rise
Heat Supplied = Heat capacity * Temperature rise
Heat supplied = 7648.18 * 2.25
Heat Supplied = 17208.405 cal
To obtain the per gram value, we divide by the mass.
This gives us; 17208.405 / 6.80 = 2523.23 cal / g
Ok first <span>to balance O we do it like this:
2KClO3 ---> KCl + 3O2
Then </span><span>to balance K and Cl </span>
<span>2KClO3 ---> 2KCl + 3O2
So the ratio will be </span><span>2:3
Hope this helps a lot to you</span>
1 gallon of antifreeze = 60% of mixture. Total mixture:
Vm = 1/0.6
= 1.67 gallons
Volume of water = total vol - antifreeze vol
= 1.67 - 1
= 0.67 gallon of water