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1. According to the equation shown below, how many grams of oxygen are required to react with 9.0 grams of C2H6?2 C2H6 + 7 O2 ---> 4 CO2 + 6 H2O
2. If 3.00 grams of calcium are allowed to react with 2.00 grams of fluorine, what mass of CaF2 would be formed?Ca + F2 ---> CaF2
3. If 0.75 moles of Si is allowed to react with an excess of nitrogen, how many moles of Si3N4 will be produced?3 Si + 2 N2 ---> Si3N4
the drops in temperature is measured by 113 degreed celsius when a 55 g sample of a certain metal and it loses heat of
A voltaic cell utilizes the following reaction: Al(s) + 3Ag+(aq) Al3+(aq) + 3Ag(s) What is the effect on the cell emf of each of the following changes
Calculate the freezing point depression of a solution containing 0.20% wt/v glucose (mol wt of 180) and 0.5% NaCl
When square brackets are placed around the formula for a substance, such as [NaOH], it indicates that we are working with the percent-by-mass
A student heated 1.0L of ethanol (density 0.789 g/L) with 1.0 mL ethanoic acid (density 1.049 g/mL) with a sulfiric acid catalyst and noticed a vinegar-like smell to the product as well as a fruity medicinal smell.
A 0.5000-g sample containing NaHCO3, Na2CO3, and H2O was dissolved and diluted to 250.0 mL. A 25.00-mL aliquot was then boiled with 50.00 mL of 0.01255 M HCl. After cooling, the excess acid in the solution required 2.34 mL of 0.01063 M NaOH when t..
Describe all the symmetry planes in methylene chloride Draw a figure and arrows to show any symmetry exes in methylene chloride. Also state how many fold.
What are the favored geometrical arrangements for ABn molecules for which the "A" atom has 2,3,4,5 and 6 pairs of electrons in its valence shell?
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 0.560 mg/L , that total blood volume is 5.5 L , and that 1 mol of succimer binds 1 mol of lead.
The volume percentage of CO2 in a mixture of that gas with N2 was determined by bubbling the mixture at 1.00 atm and 25*C through a solution of 0.0100 M NaHCO3 and measuring the pH.
write the balanced equation for the reaction for delta h is the lattice energy for potassium
Using 1-Propanol as your only source of carbon, propose a synthetic route for 2-methyl-1,3-pentanediol.
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