Write the charge and mass balances for a solution made by dissolving MgBr2 to give Mg21, Br2, MgBr1, and MgOH1. (b) Modify the mass balance if the solution was made by dissolving 0.2 mol MgBr2 in 1 L.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.