What is the definition of Matter?

The early chemists (referred to as alchemists) tried to create gold from other metals in the hopes of achieving wealth and eternal life.  This work is referred to as _____.

Calculate the mass in grams of 0.568 moles BaSO4.  (molar mass = 233.4 g/mol)

Which of the following is the best Lewis diagram for NO2–?

Write the chemical name for K2O.

What is termed the mass of 1 particle of MgCl2

For the Lewis Dot Structure of an Ionic Compound like CaCl2, which of the following represents the Ca ion in the ionic bond with Cl (after they have bonded)?

Before You Complete The Next Question: You Will Perform the following tasks: Show the camera the tables you printed. Show the camera your calculator. If you used the “Desmos Test Mode” calculator on your mobile (phone), hit “Done” and show the minutes displayed to the camera. Show the camera your clean whiteboard. Also, rescan your work area. If you fail to do the above, you will receive a zero grade for this test. How many moles are in 32.0 grams of CH4?  (molar mass = 16.0 g/mol)

The formula mass of Ca3(PO4)2 is _____.

Which atom contains 4 valence electrons (before bonding)?