Oxi có 3 đồng vị là 816O, 817O, 818O. Cacbon có 2 đồng vị là 612C, 613C. Số loại phân tử khí CO2 có thể tạo thành là:

Two things that biomedical has invented or innovated

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.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted