Which element is classified as a noble gas at STP?

hydrogen

oxygen

neon

nitrogen

A solution is prepared by adding 100 ml of 0.2 m hydrochloric acid to 100 ml of 0.4 m sodium formate. is this a buffer solution, and if so, what is its ph?

If the volcanic ash from an eruption extends to 3.6 miles into the atmosphere, how many kilometers does this represent? (Hint: 1 mile = 1.6 kilometers.)

Which is the best example of the heat through radiation

Why do goldfish in a crowded bowl have a better chance of survival in cold water than in warm water

A gas occupies 4.3 liters at a pressure of 0.76 atm

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3

Is burning wood a physical change

A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)

An open-end manometer containing mercury was connected to a vessel holding a gas at a pressure of 767 torr. The atmospheric pressure was 724 torr. What is the difference in the heights of the mercury, expressed in cm?

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure