What mass of Ca(NO₃)₂ must be used to make 1.75L of a 0.350M solution?

Which of the following best describes the formation of plasma?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Why are people not able to skip a dive to the deepest part of the ocean