If 20.5 g of chlorine is reacted with 20.5 g of sodium, which reactant is in excess? 1. cl 2. neither is in excess. 3. na

The reaction of sodium peroxide and water produces sodium hydroxide and oxygen gas. The following balanced chemical equation represents the reaction.

List a possible set of four quantum numbers (n, l, ml, ms) in order, for the highest energy electron in gallium?

How many U. S. gallons are there in a cubic mile? The total proven oil reserves of the U. S. are roughly 30 x 10°bbl. How many cubic miles is this?

An elephant eats about 500 pounds of grass and leaves every day. there are 2 african elephants and 3 asian elephants living in the city zoo.

Define ionization energy. Describe how ionizacion energy impacts ionic bonding.

A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms