A spring - also an electromagnet. Also know as a slinky!
A tend line I believe (I am going off the other guy cause they are right.)
Answer: northern hemisphere
Explanation: I looked it up. Plus I took a test with this question and when the teacher went over the answer i got it right.
Answer:
B
Explanation:
Heating a piece of iron until it glows.
The number of moles of one substance given the amount in mass can be calculated by the use of the molar mass. This is the mass of a compound per 1 mol of the said substance. For, KCl the molar mass is 74.55 g/ mol
148 g / 74.55 g/mol = 2 mol KCl
Hope this answers the question. have a nice day.