Which of the following elements would be classified as a nonmetal?

which of the following should be classified as a mixture? water air iron helium

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this