A (12), B (8), C (4) out of these three elements, which two elements would show similar chemical properties?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.