How many molecules are there in 45 g of caffeine

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Which element would mostly likely have an electron affinity measuring closest to zero