a toy plane weighs 500g. when placed in water, it changes the water level from 250ml to 300ml. what is the density?

Co (g) + h2o (g) ⇌co2 (g) + h2 (g) kp=0.0611 at 2000 k a reaction mixture initially contains a co partial pressure of 1320 torr and a h2o partial pressure of 1760 torr at 2000 k. calculate the equilibrium partial pressure of co2.

What happens to the concentration as more solute is added?

Why do we saya atomic spectra are like fingerprints of the elements?

Which prediction about a methane molecule would most likely be made by using both the quantum model of the atom and John Dalton's model? A. when the molecule reacts new atoms are created B. the molecule contains different kinds atoms C.

What is one way that nutritional diseases are different than those caused by pathogens like bacteria or viruses?

Calculate the number of ATPs generated by the complete metabolic oxidation of tripalmitin (tripalmitoylglycerol). Hydrolysis of the triacylglycerol occurs at the cell surface.

If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, what would happen to the pressure of the gas? It would increase. It would be halved. It would stay the same.

Which of the following would require the largest volume of 0.100 M sodium hydroxide solution for neutralization?: (A) 20.0 mL of 0.0500 M nitric acid (B) 15.0 mL of 0.0500 M hydrobromic acid (C) 5.0 mL of 0.0100 M sulfuric acid (D) 10.0 mL of 0.

Approximately what volume do 3.0 moles of kr gas occupy at stp? 80.0 40.0 l none of the above 20.0

What is the correct formula when Aluminum and Nitrogen are combined? a. Al3N b. AlN c. AlN3 d. Al2N