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1. What is the greenhouse effect?
2. How does the excess CO2 gas in the atmosphere cause the greenhouse effect?
3. What are the potential long-term consequences of greenhouse effect?
4. How can we combat this problem?
A certain mass of oxygen was collected over water when potassium chlorate was decomposed by heating. The volume of the oxygen sample collected was 720. mL at 25.0 oC and a barometric pressure of 755 torr.
How do you know when an element that is by itself has an oxidation number of zero or its charge
At standard temperature and pressure (0 C and 1.00 atm ), 1.00 mol of an ideal gas occupies a volume of 22.4 L . What volume would the same amount of gas occupy at the same pressure and 35 C ? Express your answer numerically in liters.
What is the concentration of hydrogen ions in a solution containing 0.321 M HOCN (cyanic acid) and 0.223 M (NaOCN) (sodium cyanate)? The ionization constant of cyanic acid is 3.5 × 10-4.
If this codon is mutated to the sequence 5'-UUG-3' what is the expected consequence for the cell
calculate number of moles of anhydrous compound recovered. c- calculate number of moles of water lost from the hydrated compound.d- what is the formula of the hydrate?
what is the concentration of oxygen in air-saturated water at 25 degrees C and .85 atm? Assume that the mole fraction XO2 is .209 and Henry's law constant for oxygen
Calculate the mean molecular weight (kg/kmol) of the fuel c) Evaluate the air-fuel ratio on a mass basis.
calculate the final temperature once the ice has melted of a mixture made up initially of 75.0 ml liquid water at 29.0
at -13.0 degc a common temperature for household freezers what is the maximum mass of sucralose c12h19cl3o8 you can add
if 31.82 g of a metal oxide reacted with excess carbon and 4.08 l of co2 formed at 100 c and 1.5 atm what is the
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge. The compound given is a cyclohexene with double bonds at every other one.
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