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Given the following balanced chemical equation, if 345 g of I2 are formed, how many g of Cl2 had to react? 2 FeI2 + 3 Cl2 ? 2 FeCl3 + 2 I2
Concetrated acedic acid is a Class II combustible liquid. What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
Which of the following is true about an endothermic reaction?
What solute particles are present in an aqueous solution of NH4Cl? Express your answer as a chemical formula. If there is more than one answer, separate them by a comma. Include charges where necessary.
A particle rotates on the surface of a sphere. The angular momentum of the particle can be considered as a vector starting at the center of the sphere and pointing outward.
CCl4 lowered the freezing point of the solvent by 5.40 K . Calculate the molar mass of the compound.
A 5.0 mL sample of vinegar was titrated with 7.2 mL of 0.55 M NaOH(aq). If the density of the vinegar solution is 1.00 g/mL, what is the mass percent of acetic acid present?
What is the main structural feature of the azo dyes that causes them to be colored compounds?
If the weight of the gas in the bulb is 0.3554 g, what is the mole percent of butane in the mixture. Set up two equations to solve simultaneously for the two unknowns, the moles of ethane and butane.
Using the values for the heat of fusion, specific heat of water, and or heat vaporization, calculate the amount of heat energy in each of the following
The following reaction was monitored by measuring the partial pressure of oxygen. The pressure was measured at 25 degrees Celsius.
Write the net ionic equation, A stream of chlorine gas is passed through a solution of cold, dilute sodium hydroxide.
When determining the pressure of dry hydrogen gas, explain how the measured atmospheric pressure is corrected for the presence
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