The molecular formula for caffeine is CsHioN402. Which of the following elements is not found in caffeine?

A sample of sulfur hexafluoride gas occupies a volume of 4.000 liters at 7.836x10 C assuming the pressure is constant what will the final temperature be if the volume is increased to 9.840 liters?

A balloon filled with gas expands in volume by 2.0 L against an external pressure of 0.93 atm. If the balloon has absorbed 636 J of heat from the surroundings, what is the change in the balloon's internal energy? (note: 1 L-atm = 101.3 J)

What is the volume of 40g of sugar given it's listed density

Which of the following best explains why anodization is a useful process in many industries? Anodization can improve the appearance of dull metals by adding layers of gold or silver to them.

What are the products of a combustion reaction?

Are erasers made from rubber?

The specific heat of nickel is 0.44 J/g*⁰C. How much energy needed to change the temperature of 95.4g of nickel from 32⁰C to 22⁰C. Is the energy absorbed or released?

What compound do the ions Al3 + and O2 - form

Draw every stereoisomer for 1,2-difluoro-1,2-dimethylcyclopentane. use wedge-and-dash bonds for the substituent groups, and be sure that they are drawn on the outside of the ring, adjacent to each other.

Suppose an ice cube weighing 36.0 g at a temperature of 10°C is placed in 360 g water at a temperature of 20°C. Calculate the temperature after thermal equilibrium is reached, assuming no heat loss to the surroundings.