Draw a rough energy band
In what type of material is the energy gap between the valence and the conduction band the greatest? Na, Ge or diamond. Draw a rough energy band showing the valence and conduction bands in these materials.
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A solution contains 100.0 g of water and 15.0 g of alcohol. What is the percent alcohol in the solution? My teacher got 13% and im not sure how?
Calculate the maximum number of moles and mass of iodic acid (HIO3) that can form when658 g iodine trichloride reacts with111.2 g water. What mass of the excess reactant remains?
The meniscus of mercury in a glass capillary tube is convex because of A)the very high density of mercury as compared with water. B)the low surface tension of mercury
Identify the compound(s) that act as acid(s) in the following equilibrium: NH4+ (aq) + CN- (aq) NH3 (aq) + HCN (aq)
Which of the following enzymes catalyzes a group transfer reaction? A. hexokinase B. aconitase C. phosphoglycerate mutase D. malate dehydrogenase E. triose phosphate isomerase
How many grams of NaH2PO4 are needed to react with 43.74 mL of 0.285 M NaOH by the following reaction- NaH2PO4(s) + 2 NaOH(aq) --> Na3PO4(aq) + 2 H2O(l)
Silver can be electroplated at the cathode of an electrolysis cell by the half-reaction:
What is the partial pressure of acrylonitrile in the vessel after the reaction has gone to completion? e. What mass of acrylonitrile is produced after the reaction has gone to completion?
Sodium azdide, NaN3, decomposes according to the following equation. What volume of N2 at 1.1 atm and 50.0C will be produced by the decomposition of 5.0g of sodium azdide. NaN3(s) --->Na(s)+N2(g)
Identify each of the following as an acid or base and write a chemical equation showing how it is an acid or a base according to the Arrhenius definition?
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