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Using pulleys of negligible friction, three blocks with masses 6.7 kg, 9.2 kg and 8.8 kg are connected as shown below. When released, the 9.2 kg block accelerates to the right at 0.54 m/s2.
What is the coefficient of kinetic friction between the 9.2 kg block and the horizontal surface in contact with it while sliding occurs?
An unknown metal forms two different compounds with oxygen. When a 2.412 g sample of the metal is combined with oxygen, 3.466 g of Oxide A are formed. What is the cation charge for oxide A
According to the activity series, which of these metals will react with most acids to produce H2 gas?
Problem- What are the major compounds expected to be seen from spinach extract from column chromatography. Describe the properties in terms of polarity and structures
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 49. g of butane is mixed with 150. g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction.
(1) write the electron configuration of Co (III) (2) what is the geometry structure of this complex ion? Linear, Tetrahedral, Square planar or Octahedral. (3) predict the number of unpaired electrons in [Co(en) ] (4) draw the crystal field diagram..
X-ray Diffraction Methods 1. A particular crystal has a set of parallel layers at a d-spacing of 8.50 Å. At what angle does the X-ray beam have to be placed to obtain a diffraction peak using copper Kα radiation (1.542 Å).
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
Which should experience the greater effective nuclear charge , a 2p electron in oxygen or a 2p electron in neon
Present-day carbon (in living matter) gives 15.3 disintegrations per minutes per gram of total carbon. Determine the date of the volcanic eruption. Recall that the half-life of carbon-14 is 5730 y.
A solution of HCl in water conducts an electric current , but a solution of HCl in hexane does not. explain this behavior in terms of ionization and chemical bonding
If Ecell =1.44 V for a reaction utilizing 2 moles of electrons for each mole of electrons for each mole of desired product, but measurement shows that Ecell=1.56 V and the temperature is 15 celsius, what is Q
An electromagnetic wave has a wavelength of 6.00 x 10-6 m. In what region of the electromagnetic spectrum is this radiation? How far does light travel in one year? [This distance is known as a light-year (ly) and is used in measuring astronomical ..
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