Answer:
Is this really middle school? Im in middle school and this looks way beond what i would know, im so sorry if I am no help for this question :(
Answer:
D) 6.02 kJ/mol
Explanation:
Hello,
In this case, since 200kJ melted 1.5 kg of ice (2.0kg-0.5kg), we can compute the melted moles:

Then, we compute the molar enthalpy of fusion by diving the melted moles to the applied heat:

Hence answer is D) 6.02 kJ/mol.
Best regards.
Answer:
Sound waves transfer energy by the motion of particles
Explanation: guessing lol
4.) an element cannot be decomposed by a chemical change, it is a pure substance and no other materials compose it.