Write the formulas for the following ionic compounds. potassium iodide
magnesium phosphide
silver sulphide
iron(III) bromide
magnesium hydroxide
sodium sulphate
lead (IV) nitrate
ammonium carbonate

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Which of the following are correct values for the ideal gas laws constant r

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element