Molecular formulas: You find that 7.36 g of a compound has decomposed to give 6.93 of oxygen. The rest of the compound is hydrogen. If the molar mass of the compound is 34.0, what is its molecular formula?

The equilibrium constant values for the reaction of Ni+2 in aqueous solution with an amine to form the corresponding ammonia, en, and dien complexes increase in the order dien>en>ammonia. Why is this the case?

How many subshells are in the n = 4 shell?

Which element below must be stored in oil because of its reactivity? A: Florine B: Chlorine C: Sodium D: Gold

The experimental procedure has you wash your thermometer and dry it after you measure the temperature of the acid and base solutions.

Explain how a global dependence on fossil fuels can lead to international security risks.

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