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In 1911, Hans Geiger and Ernest Marsden (working under Ernest Rutherford) conducted an experiment involving alpha particles and gold foil that led to the discovery of the nucleus in atoms.
A bottle containing 335 of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
what mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
Draw the Lewis structure of formic acid, HCO2H. (Hint: C is the central atom. One of the H is bonded to an O.) How do we know which of the possible structures for HCO2H is more likely to be correct?
For which of the following species is resonance an important property: HONO, HONO2, N3-, NO2-, NO2
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. H3PO3 is a stronger acid than H3PO4 because it has fewer ox..
sodium azide, a compound containing only sodium (Na) and Nitrogen (N), is used as a propellant for inflating airbags in some automobiles. A sample of sodium azide was weighed into a crucible.
With what minimum speed must Fran leave the ground in order to lift her center of mass 1.95 m and cross the bar with a speed of 0.70 m/s?
How many total moles are produced when 0.595 mol of methanol (CH3OH) are combusted in oxygen to produce carbon dioxide and water
Why is a reaction that is performed in ethanol considered "greener" than a reaction that uses dichloromethane as a solven
several questions regarding the volatility, bioaccumulation potential and toxicity of BTEX compounds commonly present in the light fraction of gasoline. You find the following data from a reference book (E. R. Weiner, 2000) and try to help him.
how many grams of calcium carbonate , CaCO3, do you need in an antacid tablet to neutralize 20 ml of stomach acid ?
Nitrogen (80 kPa), oxygen (21.0 kPa), carbon dioxide (0.03 kPa), and water vapor (2.0 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa.
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