I would think the answer would be C. Based off of what I've learned and heard. Sorry if it's not the correct answer though.
the answer is C
It is a chemical change because heat energy is absorbed and the pack gets colder. A change in temperature is a sign that a chemical reaction has taken place; increase in temperature is an exothermic reaction and decrease in temperature is an endothermic reaction. This is an endothermic chemical reaction.
Depends what color your natural hair is..
it won't be a noticeable in dark hair depending on the color you are using..might want to consider lightening you hair if it is on the darker shade.
Answer:
Bacteria, fungi and nematodes
Answer:
160.3 g S
Explanation: there you go