Vocabulary Vault
The term for a substance that can dissolve in water.
What is soluble?
This type of formula shows the simplest whole-number ratio of atoms in a compound.
What is an empirical formula?
The mass of one mole of a pure substance is called this.
What is the molar mass?
The reaction type represented by A + B --> AB.
What is synthesis?
According to the Activity Series, this happens when a Silver (Ag) ring is placed in Hydrochloric Acid (HCl).
What is "No Reaction"?
This number (6.022*1023) represents the number of particles in one mole.
What is Avogadro's Number?
This type of formula shows the actual number of each type of atom in a molecule.
What is a molecular formula?
There are this many moles in 1.20 x 1024 molecules of CH4.
What is 1.99 moles?
The reaction type for CH4 + 2O2 --> CO2 + 2H2O.
What is combustion?
This is the solubility of KNO3 (potassium nitrate) in water.
What is soluble?
A solid that forms and settles out of a liquid mixture during a chemical reaction.
What is a precipitate?
A compound is 80% Carbon and 20% Hydrogen by mass. This is its empirical formula.
What is CH3?
This is the mass of 2.50 moles of $LiBr$ (Molar mass: $86.84\text{ g/mol}$).
What is 217.1 grams LiBr?
The coefficients to balance N2 + O2 --> N2O5.
What is 2, 5, 2?
If metal X displaces Y, but metal Z cannot displace Y, this is the order reactivity from MOST to LEAST.
What is X > Y > Z?
This law states that mass is neither created nor destroyed during a chemical reaction.
What is the Law of Conservation of Mass?
An empirical formula is CH2. If the molar mass is 42.08 g/mol, this is the molecular formula.
What is C3H6?
There are this many molecules in 25.0 g of H2O.
What is 8.35 x 1023 molecules H2O?
In this reaction type, two compounds exchange ions to form two new compounds.
What is a double replacement reaction?
When mixing BaCl2 and Na2SO4, this is the chemical formula of the white precipitate that forms.
What is BaSO4?
A solution where the solvent is water.
What is aqueous?
To convert from an empirical formula to a molecular formula, you must divide the molar mass by this value.
What is the empirical formula mass?
True or False: One mole of CO2 and one mole of H2O have the same mass.
What is false?
What is 2, 3, 2, 2?
Daily Double: You have Pb+2 and Na+1 in solution. Adding this anion would precipitate only the Lead.
What is Cl-1?