For the equation BaCl2 + Na2SO4 → BaSO4 + 2NaCl, how many chlorine atoms are on the reactants side and on the products side? reactants: 1; products: 1 reactants: 1; products: 2 reactants: 2; products: 1 reactants: 2; products: 2

Which of the following best describes a person doing science? A. Dominick uses a computer to do his math homework. B. Lindsay measures the sizes of the craters on the Moon. C. Isabel invents a new kind of doorknob. D.

Density Word Problems Use the following formula to answer the problems. You must SHOW your work! density = volume density = mass or, in short form: 1. What is the density of carbon dioxide gas if 0.

What type of bond exists between Sodium and Potassium?

You are measuring the mass of different chemicals to get ready to conduct an experiment. Which one would be a example of the correct International System of Measurement units to use for measuring mass? A) ounces B) grams C) pounds D) tablespoons

What advantage does the "coolant" (mixture of water and ethylene glycol) have over water as a liquid to cool the car radiator?

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?

The pOH of a solution is 13.28. What is the [OH]

If you can choose any animal in the world to be, what animal would you choose. (I'd be a wolf or a dog, mostly a wolf)

Determine the molecular geometry about each interior nitrogen atom of n2h4.

When all of the bulbs in the parallel circuit were first lit, did they all illuminate equally?