what property easily changes in gases but does not easily change in solids a. mass b. color c. shape d. smell

Elements with 1 electron are called?

Two friend on roller skate are standing 5m apart facing each other. one of them throw a ball of 2 kg toward the other, who catches it, how will this activity affect the position of the two? explain your answer

Why is the sky the color that it is

You turn on a lamp. The amount of light energy released by the light bulb is less than the amount of electrical energy that flows into the lamp.

Which statement is true of a catalyst? A. It behaves as a reactant in a chemical reaction. B. It increases the temperature of a reaction. C. It decreases the concentration of the products. D. It accelerates the reaction rates of a mixture.

Which of the following is an example of geographic isolation? A. a population of salmon dies out because they cannot find food. B. a zebra with a long mane moves into a population of zebras with short manes. C.

What are moles in chemistry?

How did John dalton describe atoms?

Which of the following statements describes a physical property? The substance has a higher density than water. A. The substance forms a solid when reacted with silver nitrate. B. The substance is highly reactive. C.

Using the 5M NaCI and 10% glucose stock solutions you generated, how would you prepare 100 ml of a solution that is both 150mM NaCl and 1 % glucose?