Which best describes ionization energy? a. energy needed to add an electron to a neutral atom in the gas phase b. energy needed to add an electron to a neutral atom in the liquid phase c. energy needed to remove an electron from an atom or ion in the gas phase d. energy needed to remove an electron from an atom or ion in the liquid phase

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Modern weaponry has increased the number of deaths in wars and violent conflicts.