Which of the following equations is balanced?

A) 4P + 2O 2 - - > 2P 4 O 5

B) 2P + O2--> P 2 O 5

C) 5P + 4O 2 - - > 2 P 4 O 5

D) 4P + 5O 2 - - > 2P 2 O 5

Which best describes Internet wikis as a source of scientific information? a. Wikis are good sources of reliable scientific information. b. Wikis are written only by experts in their fields. c, Wikis are always extensively peer reviewed. d.

Which of the following is not equal to 0.536 kilometers? 53.6 hectometers (hm) 536 meters (m) 536.000 millimeters (mm) 53,600 centimeters (cm)

Which of the following atoms would bond covalently? A. Carbon and neon B. Lithium and fluorine C. Silicon and sulfur D. Calcium and magnesium

A substance that causes a baked good to rise by introducing carbon dioxide or other gases into the mixture

What type of symbiotic relationship does a spider crab and algae have?

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.