Which of the following is a correct statement about collision theory? which unit can be used to express the rate of a reaction?
a.
ml / s
b.
ml / g
c.
g / ml
d.
ml / mol
e.
s / ml

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.