Some scientific tools are used for making observations, and others are used for making measurements. whivh of these tools would be most useful for observing the behavior of ants? is it a. hands lens. b. metric ruler. c. electronic balance d. graduated cylinder

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c