Which statement about matter is true? a. all matter has unique physical properties. b. all matter has a positive or negative charge associated with it. c. all matter has physical properties that can be used to describe it. d. all matter has the ability to change states without undergoing a change in its physical properties.

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages