instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: Lead has a _____ melting point than steel because it has more branching. 
 Answer: lower
answer:
The more branching there is in isomers, the lower the boiling and melting points are.


question:
Question: When Derek was in the hospital, his blood vessels had a larger diameter than normal, which meant that his body was running 
 Answer: warmer
answer:
Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.


question:
Question: If Jim increases the strength of an acid he is playing with, the concentration of ions in that acid 
 Answer: rises
answer:

A stronger acid produces a greater concentration of ions than a weaker acid.