Which of the following is a mixture?

salt water

carbon dioxide

water vapor

oxygen gas

The empirical formula of a compound is NO2. Its molecular mass is 9.2g/mol. What is its molecular formula?

Why is mno2 added to the decomposition of h2o2 reaction

Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 17 cm. You take the balloon in an airplane, where the pressure is 0.87 atm.

In the simulation, open the Micro mode, then select the solutions indicated below from the dropdown list above the beaker. The beaker will fill up to the 0.50 L mark with the solution. Arrange the solutions in increasing order of basicity.

Which gas has properties that are most similar to those of an ideal gas

A box contains equal amounts of helium, argon, and krypton (all gases) at 25 ∘c. part a consider the temperatures, masses, average velocities, and average kinetic energy of the three kinds of gas in the mixture.

Why are coastal zones productive?

Why aren't there any plate boundaries in Maryland?

Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure.

If you walk toward a Van der Graaff generator, the effect of its electric field would get weaker as you got closer to it, true or false.