How many grams of oxygen are there in one mole of isobutyl alcohol (C_H, OH) A. 15.994 g B. 1.067 g C. 144.00 g D. 74.123 g

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

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.

The identities of substances are the same before and after which type of change