Which substance is a pure substance?
Cereal
Silver
Jelly bean
Shampoo

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a. inner transition b. noble gases c. representative d. transition

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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