H2O2 is what type of compound?

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

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

What methods could you use to solubilize calcium carbonate