Given four chemical bonds, C―Si C=C C≡N C=N Determine if each of the statement is True or False. 1) There are three bonding pairs between C and N in a C≡N bond. 2) The C=O bond is stronger than the C=N bond because O is larger than N. 3) The order of increasing bond length is: C≡N < C=N < C=C < C―Si. 4) The only reason that the C=C bond is shorter than the C―Si bond is that a C atom is smaller than a Si atom.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.