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What type of interaction does Ultraviolet, Visible, and Infrared regions of the spectrum have with matter?
Other than S=C=S; can I have S triple bonded to C single bonded to S? Wouldn't there be three electrons left on the triple bonded S; it would be sharing three when it started with six I don't understand? Help please.
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
What volume of 3.02 M HNO3 can be made by diluting 142 mL of concentrated nitric acid (16.0 M HNO3)?
A sample of a gas occupies 1470 mL at 60.7?C and 740 torr. What volume would it occupy at the same pressure and 450?C.
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace
the specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5 C ?
how many milliliters of 5M MgCl2 must be added to 25ml of 0.5M MgCl2 to produce 1500mL with a final MgCl2 concentration of 1.75M?
Calculate the cell potential for the following reaction as written at 53C, given that [Zn2+]= .841M and [Fe2+]= .0160M. Standard reduction potentials are Zn(s)= -.76, Fe2+(aq)= +.771, Zn2+(aq)= -.76, Fe(s)= -.04
Carbon sequestration technologies are being actively explored by researchers as methods to remove CO2 from the atmosphere, thereby diminishing the greenhouse effect.
Car manufacturers are developing engines that use H2 as fuel. In locations where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
The compression ratio of today's cars is so much higher than in cars of years past. What is the major advantage of increasing the compression ratio?
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