The charge in a certain ion is indicated as 2+ . Has the atom gained or lost electrons

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.

What occurs when a cell engulfs large food particals