9. Challenge yourself: Suppose you wanted to make 200 grams of water. A. What is the molar mass of water (H2O)? I B. How many moles of water are in 200 grams? C. How many moles of hydrogen will you need? D. How many moles of oxygen will you need? How many grams of hydrogen and oxygen will you need? Hydrogen Oxygen - F. Is your answer reasonable? Why or why not?​

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

The organs inside the body and how they function together