Vocabulary
The smallest and most basic unit of matter.
Atom
How many atoms are in NaHCO3?
6 (six)
True or False, this reaction is balanced: Na + O2 🡪 Na2O
False
In this type of system, matter can escape into the environment and avoid measurement.
Open System
A measure of how well something dissolves in water, acid, oil, or any other fluid.
Solubility
Any 2 or more atoms chemically bonded together
Molecule
How many different elements are in (NH4)3PO4?
4 (Nitrogen, Hydrogen, Phosphorous, and Oxygen)
How many oxygens should I find in the products of this reaction: N2O5 + H2O 🡪 ????
6 (six)
In a theoretically perfect closed system we measure the mass of our reactants to be 135.7 grams. What will the mass of the products be?
135.7 grams (theoretically perfect closed system)
The amount of matter (mass) packed into a given space (volume)
Density
The 103 different types of atoms that all of existence is made from
Elements
How many total atoms are in the reactants of this reaction: Ca(OH)2 + HBr 🡪 CaBr2 + H2O
7 (seven)
What coefficient should replace the question mark in the chemical equation: C6H12O6 + ?O2 -> 6H2O + 6O2
6
Citric Acid and Baking Soda
True or False: All matter has mass regardless of state.
True
Matter cannot be created or destroyed, it can only transform.
The Law of Conservation
How many different elements are in the products of this reaction: La2O3 + H2O 🡪 La(OH)3?
3 (Lanthanum, Hydrogen, Oxygen)
What coefficient should replace the question mark in order to balance the equation: ?Fe2O3 + 3C --> 4Fe + 3CO2
2
What tool have we used to measure the amount of matter in a reaction?
A Scale (taking the mass)
A force that arises when electrons move, results in object that can attract or repel each other.
Magnetism
The element upon which all of life on earth is based.
Carbon (C)
How many atoms of each element are in the molecule Fe2(SO4)3 ?
Fe = 2
S = 3
O = 12
How many oxygen atoms should there be in the reactants if these are the products: 🡪 Al2(SO4)3 + H2O?
13 = 4 x 3 + 1
What is the full chemical equation for the bath bomb reaction?
NaHCO3 + C6H8O6 ---> CO2 + H2O + Na3C6H5O7
This property describes a chemical that electrical charge can move through.
Conductivity