Which of the following statements is true? a. An insulator speeds up the transfer of heat.
b. Radiation is the transfer of heat in solids.
c. All moving objects experience friction.
d. All work gains some energy as heat.

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

What is a property of a double replacement reaction

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?