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If 30 mL of a certain liquid has an initial temperature of 50 degrees and is heated to 100 degrees. What is the new volume of the liquid?
Rutherford fired positively charged particles at metal foil and concluded that most of the mass of an atom was..a) in the electrons.
How many moles of Cl2 can be produced from the given mass of HCl. c. Which reactant is the limiting reactant? d. What is the maximum amount of Cl2 that can be produced by this reaction e. Calculate the amount of excess reactant.
A typical polyethylene bag from a grocery store weighs 12.4 g. How many molecules of ethylene, C2H4, must be polymerized to make such a bag
When 79.272 cg of nitrogen gas is reacted with 79.272 cg of hydrogen gas, how many grams of ammonia are formed?
If this gas is brought to a final temperature of 150 degrees Celsius while the volume is held constant, what is the final pressure?
The pH of 0.5 M HF is 1.88. Calculate the difference in pH when 6.06 g of NaF is added to 205.7 mL of this solution. Ignore any changes in volume. The Ka value for HF is 3.5 x 10-4.
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
What must the minimum temperature of its energy source be if it is to produce work with an efficiency of 0.75?
What combustion products are produced when materials made from polyacrylonitrile smolder and burn?
If a battery is created using zinc and electrodes along with any corresponding ionic solutions what voltage will it produce by itself? note that E for Ag^+ (aq) + e^- ---> Ag (s) is +0.80 v.
A gaseous sample of this element is bombarded by photons of various energies (in these same units). Match each photon to the result of its absorption
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