Answer:
Placing a powder into a beaker that contains liquid, resulting the beaker to get hotter.
Explanation:
Physical property is something that you can observe that does not affect the mixture/solution/substance, and that includes temperature
Answer:
It is just sugar decomposing to a dark tar looking goo.
Explanation:
Cite: What happens after you boil kool-aid
Answer:
I think it's B " Constraints are more important than criteria ".
Answer:
They all have: nitrogen :780,900 755,100
oxygen: 209,500 231,500
argon 9,300 12,800
carbon dioxide
386 591