Using the following phase diagram, which line segment describes the interface between solid and vapor?

A-B

B-C

A-B-C

B-D

In a reaction A - - > B, when C is added it reacts irreversibly with A. What can we say about C? A. C will make the reaction spontaneous. B. C is an intermediate. C. C will lower the rate of the reaction. D.

The ability to make change or do work

An ion of which element has a larger radius than an atom of the same element? (1) aluminum (3) magnesium (2) chlorine (4) sodium

Which domain consists of single-celled organisms, some of which can cause illnesses treated with antibiotics? a. Archaea b. Bacteria c. Eukarya

What is the correct formula for the compound carbon tetrachloride? (a) C4Cl4 (b) C4Cl (c) CCl4 (d) CCl2 (e) CCl

You aren't sure if your pH meter needs to be calibrated, so you put it in a buffer solution that has a known pH of 7. You take four separate readings of the solution with the pH meter. The meter reports the pH as 5.5, 8.6, 6.3, and 9.4.

Can you explain and read this equation 2Mg + 02 - - 2MgO

The label of a gas cylinder has come off in your laboratory. You know that only one species of gas is contained in the cylinder, but you do not know whether it is hydrogen, oxygen, or nitrogen.

Give two example of compound that decompose to give off oxgyen gas

How many moles of gas are contained in a rigid, sealed, 5 L container, at 1 atm of pressure and 22 oc?