What type of macromolecule carries out catalysis in biological systems?

A) proteins called enzymes

B) carbohydrates called starches

C) lipids called steroids

D) nucleic acids called DNA

E) carbohydrates called sugars

A book has a mass of 15,000g. What is it's mass in pounds

The equilibrium constant Kc for the equation2H2 (g) + CO (g) ⇌ CH3OH (g) is 35 at a certain temperature. If there are 3.21 * 10-2 moles of H2 and 4.87 * 10-3 moles of CH3OH at equilibrium in a 3.63-L flask, what is the concentration of CO?

When 15.6 g of fluorite (caf2) reacts with excess sulfuric acid, hydrogen fluoride gas is collected at 709 torr and 25.5°c. solid calcium sulfate is the other product. what gas temperature is required to store the gas in an 7.

A ballon inflated at 250 K has a volume of 40. L. What is the new volume at constant pressure if the temperature changes to 500K?

Sometimes more than one egg is released at a time. What do you think would happen if two eggs were released and both were fertilized? Explain your answer

How many atoms of Hydrogen in the products of the following equation? 3NO2 + H2O - -> NO + 2HNO3 1 3 4 2

What reactants form a combustion reaction? O A. A hydrocarbon and oxygen O B. Hydrogen and water vapor O C. A hydrocarbon and water O D. Water vapor and oxygen

Is the Sun bigger and brighter than Betelgeuse?

What is the si unit for the quantity of particles in a sample?

How many moles of ammonia are produced when 8 moles of nitrogen gas react with hydrogen gas?