The specific heat of water is 4.18 j/(g * °c) how much heat, in kilojoules, must be added to 250 g of water to increase the temperature of the water by 5.0°c?

You need to use the equation q=mcΔT.
q=the heat absorbed or released
m= the mass of the sample (in this case 250g)
c=the specific heat of the sample (in this case 4.18J/g°C)
ΔT=the change in temperature (in this case 5°C)
When you plug every thing in you should get q=5225J or 5.225kJ

I hope this helps.  Let me know if anything is unclear.

This is not a full question, text me and i'll you

Answers are 1,2,4 its correct on edgenuity.