The number of polar covalent bonds in

NH₃ is?

Explain why the ozone hole should be continually monitored

What happens to a light wave traveling through air when it strikes a boundary with water at a 45 degree angle? a. it reflects back into the air, moving in the opposite direction. b. it reflects toward the boundary as it moves into the water c.

Which of the following is unique for any given element? a. the number of neutrons b. the charge on the electrons c. the number of protons d. the mass of a neutron

Do you think that solids can undergo convection? explain

Jason has a balanced chemical equation and a rate law for a chemical reaction. What should he do to determine the overall order of the reaction?

If you have 6 moles of CH4 how many moles of H2O can be produced

What is the definition of substance in your own words.

A 1.3 g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 86.9 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o