The definition of chemical is "any substances that has a definite composition." What does "definite composition" mean?

You wash dishes for a chemistry laboratory to make extra money to pay for for laundry. You earn 6 dollars/hour, and each shift lasts 75 minutes. Your laundry requires 6 quarters/load.

Simplest mole ratio for glucose

Which statement best describes what happens when a person sees a blue ball? A. human eyes reflect blue light back to the ball. B. the ball absorbs blue light from human eyes. C. blue light absorbed by the ball is perceived by human eyes. D.

How many electrons does titanium have in the d orbital in its ground state electron configuration

What is not within the scope of chemistry

What larger energy does light energy come from?

Allows water to pass through easily

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

What happens when the threat of exposure to dirty air is reduced in a community? There is enough oxygen available for people's lungs to function normally The amount of indoor air pollutants released during a fossil fuel burn decreases There is a

Is chicken noodle soup an element, a compound, a homogeneous mixture, or a heterogeneous mixture?