When aluminum is combined with oxygen, aluminum oxide is formed. the rearrangement of the atoms involved is an example of what? a. physical change b. chemical change c. chemical property d. intensive physical property

Aforce of attraction/repulsion due to the spin of electrons what is this force?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5