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Jenny and Mark complete a reactivity experiment by placing samples of metals into water. They initially place small shards of potassium into water and observe that hydrogen gas and potassium hydroxide solution are produced. To complete a second experiment, they place large cubes of potassium into water and observe the reaction again. Assuming the same amounts of potassium and water were used in each experiment, do you expect their observations about the products formed and reaction rate to be the same? Explain your answer.
What is the similarity in these diagrams? The sodium ion and the neon atom are isoelectronic (have the same electron configuration).
Consider the solubility rules and identify all of the spectator ions when the following chemicals react: A) lead (II) nitrate and ammonium chloride B) Barium bromide and potassium sulfate. You must show all work (equations) clearly and in detail t..
Explain the volume of a gas is 6.10 L measured at 1.00 atm. Define what is the pressure of the gas in mmHg if the volume is changed to 9.59 L. The temperature remains constant.
How many grams of NaCl would you need to add to a a 1 L water sample (pH=7) so the ionic strength equaled 0.1M
minor component that can be hydrolyzed to yield eugenol and acetic acid. What is the structure of the minor component, which has the molecular formula C12H14O3
Consider a cylinder filled with air with a piston and spring arrangement on top. The external pressure is 1 bar, the initial temperature of the air in the cylinder is 25 C.
Use the letter from the reagent table for inorganic reagents and write the IUPAC substitutive name for the bromoalkane.
The reaction above took place and 3.25 liters of oxygen gas were collected over water at a temperature of 27*C and a pressure of 765 milimeters of mercury. The vapor pressure of water at 27*C is 30.0mm of mercury. What is the partial pressure of t..
sodium hydrogen carbonate how do I figure out how many moles of carbon dioxide are in the balloon? The circumference of the balloon is 5.89 cm.
How many mL of 50 wt% sodium hydroxide must be added to water to prepare 500 mL of a 0.400 M solution of sodium hydroxide? The density of the concentrated sodium hydroxide solution is 1.53 g/mL
a solution is prepared by adding 1.91 mg of an unknown protein to enough water to make a 12.7 ml solution. the osmotic
Diffraction of a wave through an opening may be observed when its wavelength is comparable (to within a factor of 100) to the dimensions of the opening. Consider directing beams of baseballs and positrons onto a crystal,
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