Which category includes liquids and gases?

What is the maximum number of electrons that an atomic orbital can contain?

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 chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?