Given the table below, what is the chemical formula for a compound between Ca and the nitrate ion NO3-1? nitrate ion NO3-1

phosphate PO4-3

sulfate SO4-2

acetate C2H3O2-1

ammonium NH4+1

chromate CrO4-2

carbonate CO3-2

dichromate Cr2O7-2

permanganate MnO4-1

sulfite SO3-2

A.)Ca(NO 3) 2
B.)Ca 2NO 3
C.)CaNO 3
D.)Ca 2(NO 3) 3

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

Light waves can move through , but they travel fastest when they move through a(n) .