What is true about proportions? Select all that apply. (Just keep in mind that this is for chemistry class, when trying to find the mass or volume of a substance in an equation.)

A- Proportions are the amount of a substance that contains 6.02 x 1023 particles.

B- Proportions have cross products that are equal.

C- Proportions can be written as equal fractions.

D- Proportions are sums that compare compounds.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

12 is it do you think so