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Enzymes in the human liver catalyze a large number of reactions that degrade ingested toxic chemicals. By what factor is the rate of a detoxification reaction changed if a liver enzyme lowers the activation energy by 2.0 KJ/mol at 37 C?
What is the molar mass of a gas if 0.250 g of the gas occupies 215 mL at 618 mmHg and 30.0°C?
how many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 C are completely reacted N2+2 O2-----2 NO2
What volume (in mL) of a 1.420M NaOH solution is required to titrate 25.0mL of 4.50M HCl solution.
When a metal was exposed to light at a frequency of 4.54× 10^15 s-1, electrons were emitted with a kinetic energy of 3.10 × 10^-19 J.
A car battery contains 1.0 L of 4.3 M sulfuric acid. Using the value in your answer to question E., calculate how many TUMS® tablets would be required to neutralize all the sulfuric acid in a car battery.
If a wave has a frequency of 6.9536 x 109 Hz and an energy of 4.6076 x 10-24 J, what is the speed of light.
When 79.272 cg of nitrogen gas is reacted with 79.272 cg of hydrogen gas, how many grams of ammonia are formed?
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
A common rocket propellant is a mixture that includes liquid hydrazine, N2H4, as a fuel and liquid hydrogen peroxide, H2O2, as an oxidizer. The products formed are nitrogen, N2(g), and water, H2O(g).
What is the mass of aluminum metal that reacts to give 1 g of hydrogen gas?
A 91 gram solution of silver nitrate contains 8 grams of AgNO3. What is the percent by mass of silver nitrate in this solution.
Car air bags operate by the explosive reaction of NaN3: 2NaN ( ) 2Na( ) 3N ( ) 3 2 s s + g
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