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A voltaic cell with an aqueous electrolyte is based on the reaction between Cd 2+ (aq) and Mg (s), producing Cd (s) and Mg 2+ (aq). Write half reactions for the anode and cathode and the write a balanced cell reaction. Please include the states of matter in the equation
Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
What mass of iron is needed to supply the energy required to warm 15ml of water from 23 C to 37 C.
Bottled propane is used in areas away from natural gas pipelines for cooking and heating, and is also the source of heat in most gas barbecue grills. Propane burns in oxygen according to the following balanced chemical equation.
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
Calculate E when 770.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K.
For one of the solutions you make up for this week's experiment, 8.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 1.00 mL of 2.0E-3 M potassium thiocyanate solution,
Write equations for the mechanistic steps in the dehydration of cyclohexanol assuming an E1 mechanism.
The air pressure in the tires of an automobile is adjusted to 37 psi in SanDiego, where the air temp is 68F. The air in the tires is at the same temp as the atmosphere
the system achieves thermoequilibrium at atmospheric pressure. Assume no heat loss to the surroundings. What is the final temperature of the combined metal sheets?
The dipole moment μ of HBr (a polar covalent molecule) is 0.82 D (debye), and its percent ionic character is 12.1%. Estimate the bond length of the H-Br bond in picometers.
The volume of an ideal gas in a container is 2.0L. What will the volume of the gas be if the pressure on the container is doubled while the temperature is reduced from 400k to 200k?
when hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
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