Fill in the blanks below to balance the equation.

___P4 + ___O2 --> ___P2O5

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million