What type of acid is sulfuric acid

Express the density 5.6 g/cm3

What is the density of lithium metal (in g/cm3) if a cube measuring 0.82 cm * 1.45 cm * 1.25 cm has a mass of 0.794 g?

An element has 4 protons, 5 neutrons, and 4 electrons. What is the atomic mass of the element? 4 5 8 9

Which statement about activation energy is true? a. It is not affected by catalysts. b. It has no effect on the rate of the reaction. c. It is the energy required to break existing chemical bonds. d. It is the same for all reactants.

What property of radioactive nuclear waste makes it so difficult to dispose responsibility?

A system consists of two components, each of which must activate if the system is to activate. One component has a reliability of. 99. The other has a reliability of. 95. The components are independent of one another with respect to reliability.

Which of the following energy level changes for an electron is most energetic? 3 → 2 5 → 2 4 → 2

Is baking soda a element compound homogeneous mixture or heterogeneous mixture?

For the reaction: C (CH3) 3I + Cl - → C (CH3) 3Cl + I- What is the activation barrier for the SN2 reaction mechanism, in units of kcal/mol? Provide your answer to the nearest 0.1 kcal/mol.

Which of the following utilizes the measurement of a short - or long-lived radioactive element, with its decay product, to determine the absolute age of an object? A. varves B. radiometric dating C. dendrochronology