1. mendeleev organized elements in his periodic table in order of increasing
2. you are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. you would select the compound with the melting point.
3. two factors that determine whether a molecule is polar are the types of atoms in the molecule and the of the molecule.

Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?

What are transitions between a liquid and a solid called? identify which way they are transitioning

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.