Which is another name for groups of elements

Compared to the average diameter of a hydrogen atom, the average diameter of a helium atom is:

The initial volume of a gas at a pressure of 3.2 atm is 2.9 L. What will the volume be if the pressure is increased to 4.0 atm?

Determine the theoretical yield of P2O5, when 3.07 g of P reacts with 6.09 g of oxygen in the following chemical equation 4 P+5O_2→2P_2 O_5

the rate of weathering depends on?

Lenses can be found in a variety of objects. Which example does not contain a lens? an electron microscope night vision goggles a diving mask a smart phone

A gas occupies a 1.5 L container at 25 degrees Celsius and 2.0 atm. If the gas is transferred to a 3.0 L container at the same temperature, what will be its new pressure? a) 3.0 atm b) 2.0 atm c) 1.0 atm d) 4.0 atm

The maximum amount of n2h4 (hydrazine) that can be prepared from 14 grams of nitrogen and 28 grams of hydrogen by the reaction n2 + 2 h2 = n2h4 is?

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container.

Why is fluorine a gas?

What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl?-pcl5-pcl3-p2cl10-p2cl5