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States of Matter
Chemical Equations & Reactions
Periodic Table & Trends
Thermochemistry
Naming Chemical Compounds
100
Chemistry is the study of the composition of ______ and the changes it undergoes.
What is matter.
100
Name the man who developed the mole concept.
What is Avagadro
100
0.000550 has ___ significant figures.
What is 2.
100
This is the average kinetic energy of particles in an substance.
What is temperature.
100
Two atoms of different elements bonded together.
What is compound.
200
One state if matter where electrons have been stripped off of atoms.
What is plasma.
200
Type of reaction: Zn + 2HCl -> ZnCl2 + H2
What is single replacement.
200
The number of protons plus neutrons in an atom is this number.
What is atomic mass.
200
Energy that is available to do work.
What is free energy.
200
Interaction that connects atoms in an ionic bond.
What is electrostatic.
300
A law that says matter is never created or destroyed in a chemical reaction.
What is Law Conservation of Mass
300
Substance that does not dissolve in water and form solids.
What is insoluble.
300
Classify is Cl is a metal, nonmetal, or metalloid?
What is nonmetal.
300
Solids have the ______ entropy.
What is lowest.
300
Number of sigma and pi bonds in SO2
What is 2 sigma and 2 pi
400
Classify the following statement as law, theory, or hypothesis... Planting legumes will increase nitrogen content in soil better than fertilizer.
What is hypothesis.
400
Type of Reaction: C5H9O + 10O2 -> 10CO2 + H2O
What is combustion.
400
Which scientist discovered the electron?
What is Thompson.
400
A reaction system that gets cooler and the surrounding heat up.
What is exothermic.
400
Name the following compound. N2O4
What is dinitrogen tetroxide.
500
State which of the following are intensive properties and which are extensive properties... A chemical experiment requires 250mL of water.
What is extensive.
500
Complete or write no reaction: Li + MgSO4 -> ?
What is LiSO4 + Mg
500
_________ describes the pull an atom will have on electrons.
What is electronegativity.
500
This is ______ law. 1) Reverse the reaction, flip sign of H. 2) Multiply the equation by a coefficient.
What is Hess's
500
Write the chemical formula for the following compound. Sodium Phosphate.
What is Na31PO4-3