Why do your ears "pop" in an airplane?

Which of the following statements is FALSE according to Dalton's Atomic Theory? A) An atom of nitrogen can be broken down into smaller particles that will still have the unique properties of nitrogen.

Which type of graph is best suited to show the breakdown of how this teacher weighs each category?

The compound NaOH (s) dissolves in water to yield what?

Kevlar is a synthetic polymer that was marketed for the first time in 1971. It is difficult to cut and does not shrink when exposed to cold temperature. It will not rust or corrode, and it can be immersed in water without being affected.

Consider the following statements in reference to SN1, SN2, E1, and E2 reactions of haloalkanes. To which mechanism (s), if any, does each statement apply? 1. Involves a carbocation intermediate 2.

In the ground state, has only 1 electron in a p orbital. A. carbon B. fluorine C. hydrogen D. nitrogen E. aluminum

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?

What do we call the process by which cells obtain the energy that they need?