An open-arm manometer is shown. If atmospheric pressure is 100.7 kPa,
what is the pressure of the gas sample
in the device expressed in kPa?

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.