Tính số mol ,khối lượng chất, thể tích (đktc)ủa 9*10^23 CO2

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Name the element in group 17, period 2. (periodic table)

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action