Which of the following is NOT considered as a characteristic of living things? *
O A. made of at least one cell
O B. must contain DNA
O C. must take in oxygen gas
O D. be able to reproduce

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n