When preparing a buret for use in lab, the buret must always be cleaned thoroughly. prior to being filled with solution, the buret is rinsed one last time. what is the buret rinsed with, and why?

Which notation designates a possible value for a principal energy level in an atom? px 2 +1/2 s

Rutherford investigated atoms by firing small, positively charged particles at a thin sheet of gold foil. What results would he expect to see if he believed Thomson's model of the atom to be correct?

Molecules stop moving once equilibrium is reached (true or false

Gold is the [ ... ] of a valuable element. A. Chemical formula. B. Symbol. C. Name

A balanced equation tells you the mole ratio of all reactants and products. Using the chemical reaction below how many moles of NH3 are made when 3 moles of hydrogen gas are used? 2N2 + 3H2 - - - > 2NH3

You determine the volume of your plastic bag (simulated human stomach) is 1.05 L. How many grams of NaHCO3 (s) are required to fill this container given a 70.

If 3.00 g of limestone reacted, what mass of calcium chloride would be produced?

Which four quantities a, b, c and d are required to balance the equation ... aMgO (s) + bHCl (aq) = = > cMgCl2 (aq) + dH2O (l)

Find the number of moles of water that can be formed if you have 134 mol of hydrogen gas and 62 mol of oxygen gas

The amount of kinetic energy an object has depends on its. motion position gravity height