Kara shines a blue light and a red light onto paper as shown in the figure below. If the paper is

blue, what color (or colors) of light reflect off the paper?

A. only blue

B. only red

C. both red and blue

D. neither red nor blue

Which element has a larger atomic radius than sulfur? chlorine cadmium fluorine oxygen

Which food is not a heterogeneous mixture? a. chocolate chip cookies b. oil and vinegar dressing c. cooking oil d. trail mix

In the ground state, each atom of an element has two valence electrons. This element has a lower first ionization energy than calcium.

Consider three 10-g samples of water: one as ice, one as liquid, and one as vapor. how do the volumes of these three samples compare with one another?

Why must the surface of a mineral be different color than the interior of the mineral?

What is the relationship between frequency and velocity of a wave direct inverse or no relationship

How do scientist know that atoms and molecules combine in well-ordered arrays?

Explain why potassium and argon react together

Which indicator will be the same color in hydrochloric acid as it is in pure water? 1. methyl orange 2. phenolphthalein 3. bromcresol green

Based on your knowledge of energy resources conservation, which of the following statements is true? a) Manufacturers can increase a light bulb's energy efficiency by using technology that decreases the amount of electromagnetic energy the bulb