Why is oil called a hydrophobic substance?

a. oil is very slippery to the touch.

b. oil is flammable and water puts out fires.

c. oil mixes with water only at high temperatures.

d. the chemical nature of oil prevents it from dissolving in water.

Which choice is an abiotic factor of an ecosystem A. dogs B. fungi C. ants D. minerals

Copper is added to a solution of nitric acid. The solution becomes hot and changes from colorless to dark blue. What is the best explanation for the change in temperature? A. The copper and nitric acid repel each other, which produces heat. B.

For a family dinner, Jose's mom baked a loaf of bread. During the meal, his grandmother commented, "This bread is so dense!

Are h2o and h2o2 the same compound

What is the percent by mass of water in the hydrate? %

The requirements for one type of atom to substitute for another in a solid solution are:

How could you separate items that are different densities? explain

Why do elements within a period of the periodic table have different properties

A professional technician maintains and operates specialized scientific equipment. True False

What is the distance from the highest part of one wave to the highest part of the next wave.