In a nuclear reaction, which of the following must be conserved?

A. energy

B. mass

C. charge

D. the number of electrons

When a negatively charged object moves in the opposite direction of an eletric field the potential energy of the object ... A. Becomes zero B. inceases C. decreases D. stays the same

B6. How old is an object with a molar ratio of 15% bismuth-210 to 85% Thallium-206? A. 5 days B. 10 days C. 15 days D. 20 days

Select the true statements about the electron transport chain. In the electron transport chain, a series of reactions moves electrons through carriers. The products of the electron transport chain are and either or.

CCl, 189.86 g/mol. Express your answer as a chemical formula.

NiO is to be reduced to nickel metal in an industrial process by use of the reaction:NiO (s) + CO (g) Ni (s) + CO2 (g) At 1600K the equilibrium constant for the reaction is kp = 6.0 x 10^2.

Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?

Write a sentence that uses the words "mass extinction" correctly

Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals

Concerning the 10.0 mL of 0.50 M NaCl diluted to 100 mL of solution: When a solution is diluted, does the dilution change the number of grams dissolved? yes no

What causes element name to change