Khi nấu ăn, để thức ăn nhanh chín, ta thường cắt nhỏ thực phẩm trước khi nấu. Khi đó, ta đã thực hiện biện pháp nào sau đây để làm tăng tốc độ phản ứng?

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

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.

Rays from the sun are not considered matter true or false