Which of the following gases will diffuse the fastest at room temperature?

H2

Ne

He

O2

The temperature outside is 39 ∘C, and the air pressure is 0.800 atm. Your neighbor, who released the balloon, tells you that he filled it with 3.80 moles of gas. What is the volume of gas inside this balloon?

Hands moving on a battery-operated clock is an example of what kind of energy conversion? A. Kinetic energy being converted to chemical potential energy B. Gravitational potential energy being converted to heat energy C.

The materials created from a chemical reaction are called A. reactants. B. products. C. coefficients. D. none of the above.

For a solution with an [oh-] of 10-8 m, what would be the value of [h+], ph and poh, respectively? 1. 106 m, 6, 8 2. 10-6 m, 6, 8 3. 10-6 m, 8, 6 4. 10-14 m, 6, 8 5. 10-6 m, 6, 14 6. 10-14 m, 8, 6

Isotopes of an element must have different (1) atomic numbers (2) mass numbers (3) numbers of protons (4) numbers of electrons

Hey student dissolves 5 g of salt and 20 g of water what is the mass of the solution

4 What would the volume of a gas be at - 150°C, if it had a volume of 693 mL at 45°C?

How long does nicotine stay in your system

Compare the densities among the three states of matter (which is highest, lowest?)

Epsom salts (magnesium sulfate) have a solubility of 26.2 grams. If you dissolved 26.0 grams of Epsom salts in 100 g of water at 20 degrees Celsius, what type of solution would this be?