Chemistry
He is generally considered to be the father of the periodic table
Who is Dmitri Mendeleev?
This type of substance conducts electricity well as a solid
What is a metal?
Identify the type and subtype of the reaction H3PO4 + CaO -> Ca3(PO4)2 + H2O
What are double replacement and acid-metal oxide?
The ancient philosophers who first proposed the idea of indivisible particles called atoms
Who were Leucippus and Democritus?
This scientist's model of the atom included the theory that electrons behave as both particles and waves
Who was Erwin Schroedinger?
Ionic bonds form when this happens to electrons
What is they are transferred?
The mole ratio of Al to O2 in 4Al + 3O2 -> 2Al2O3
What is 4:3?
A sea of electrons is found is this type of bond
What is a metallic bond?
The volume of a gas at 400 K if it occupied 300 mL at 200 K (V1/T1 = V2/T2)
What is 600 mL?
The products of the reaction between Na and HF
What are NaF and H2?
The formula for calcium phosphate
What is Ca3(PO4)2?
The phase change from a solid directly to a gas
What is sublimation?
C6H12O6 + 6O2 -> 6CO2 + 6H2O is an example of this main type of reaction
What is combustion?
The electron configuration for oxygen
What is 1s22s22p4?
3.40 km in m
What is 3400 m?
Sugar water is an example of this type of mixture
What is a homogeneous mixture?
Chadwick's major contribution to the atomic model
What is the neutron?
The formula for hydrochloric acid
What is HCl?
The balanced reaction for C2H6 + O2 -> CO2 + H2O
What is CH4 + 2O2 -> CO2 + 2H2O?
The SI unit for the amount of a substance
What is the mole?
The reagent that is used up first is called this
What is a limiting reagent?
The reason that gases are compressible while solids and liquids are not
What is their is a lot of space between their particles?
2Al2O3 -> 4Al + 3O2 is an example of this main type of reaction
What is a decomposition reaction?
The metric prefix for one hundredth
What is centi?
Rutherford drew this conclusion from the fact that during his experiment most alpha particles passed straight through the gold foil with a few deflected sharply
What is the atom is mostly empty space with a small, dense, positively charged mass in the middle?