A certain volume of a gas is at STP. What will be the pressure if the temps tire is changed to 375k? Assume no change in volume

How do chemists express the rates of chemical reactions

A body, upon heating, becomes red first, then yellow, and then other colors. Why? A - Red light has the lowest frequency B - Yellow light has the lowest frequency C - Red light has the highest frequency D - None of the above

A sample of an unknown metal (density = 4.920 g/mL) weighs 550.0 g. What is the volume of this piece of metal? a. 111.8 mL b. none of these c. 2.706 * 10^3 mL d. 1.118 * 10^5 mL e. 8.945 * 10^-3 mL

How could you calculate the number of grams of O2 needed to completely react with a certain amount of ethane?

If you add heat to a solid, the particles will ... (choose all that apply) * Shrink Move further away from each other (expand) Explode Begin moving faster (speed up) Begin moving slower (freeze) Move closer together Split

Bismuth-211 decays by emitting an alpha particle.

What is a successful outcome for using a scientific method? develop a theory develop a hypothesis support a hypothesis analyze data

A ping pong ball with a mass of 2.20 grams rolls along a frictionless table with a velocity of 0.850 m/s. what is the momentum of the ping pong ball?1.87 g m/s2.59 g m/s1.59 g m/s3.04 g m/s

Elements have been discovered with up to how many energy levels

How many minutes are in 33.6 days