What is the oxidation state of phosphorus in the following compounds?

a. Phosphoric acid

b. Phosphorus pentoxide

c. phosphine

A student prepares a model of multicellular organisms which statement best explains the difference between tissues and organs answers are A.) organs are composed of two or more cells and tissues are composed of one cell B.

Which of the following for an object should be known to calculate its density? a) the heat present in it b) the amount of matter in it c) the force of gravity acting on it d) space between object and another object

Can chemical properties be used to remove lead from a solution of lead and other materials ?

A nickel is about 2 millimeters thick, or 2/1,000 of a meter how many nanometers is this

5. A plant in a pot of soil is placed in bright sunlight for 12 hours a day. The plant is located near an open window with good air circulation. If the plant is left alone for a month, will it produce glucose? Why or why not?

Why openness is important to the progress of science?

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.