Families are another names for the columns
Answer: All changes of state involve the transfer or energy
Explanation: i got my information from this site
https://www.esrl.noaa.gov/gmd/education/info_activities/pdfs/CTA_the_water_cycle.pdf
Answer:
Calcium cyanamide
Explanation:
I think it has to be calcium cyanide, because of the cyanamide ion (CN).
Answer:
B. Charges ( a slight positive charge on one end, and a slight negative charge on the other).
