A 100 mL graduated cylinder was filled with water to the 50 mL mark. A rock was then added to the cylinder. After the rock was added, the volume of the cylinder was 65 mL. What is the volume of the rock?

What would happen to the size of the herbivore population if the producer population decreased? decrease double in number stay the same triple in number

what is the molecular formula of a compound with an empiricla formula of ch and a molecular mass of 78

Burning wood represents a chemical change. True or False?

A reaction in which energy is absorbed

Which one has the greatest mass? 1. 3.55 mol O atoms 2. 4.52 g O atoms 3. 0.0032 kg O2 molec 4. 7.39 * 1023 O2 molec

What does composition mean in science

Which of the following descriptions best describes a solid substance? A. The volume of the substance depends on the container it is in. B. Volume of the substance changes depending on its location. C. The shape of the substance changes often. D.

Which element is present in all amino acids but not necessarily in fats or carbohydrates?

Describe the attractive forces and repulsive forces that exist between two atoms as the atoms move closer together

A bag of gum drops contains 14 orange gumdrops, 8 yellow gumdrops, and 12 black gumdrops. What is the percentage of yellow gumdrops?