For an adult human, a lethal dose of cyanide is 0.00396 moles of cyanide. How many molecules of cyanide is this? Show your work

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

List four observations that indicate that a chemical reaction may be taking place

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5