Atoms
Chemical & Physical Properties/Changes
Elements, Compounds & Mixtures
Chemical Bonds
Other Fun Stuff
100
Particles found in the nucleus of an atom.
What are protons and neutrons?
100
Baking cookies
What is a chemical change.
100
Table sugar
What is an example of a compound?
100
What holds atoms together in a molecule.
What is a chemical bond?
100
Modern creator of the Periodic Table.
Who is Dmitri Mendeleev?
200
2 types of particles that determine the weight (mass) of all atoms.
What are protons and neutrons?
200
Crushing a can.
What is a physical change.
200
Extremely small particles that all elements are composed of.
What are atoms?
200
The "2" in MgBr2.
What is the subscript?
200
Atomic number.
What is the number of protons in an element?
300
The 2 types of particles that affect the charge of an atom.
What are protons and electrons?
300
Using electricity to break down water into hydrogen and oxygen.
What is a chemical change?
300
A substance that cannot be broken down chemically into other substances.
What is an element?
300
The number of atoms in the reactant side of this UNBALANCED chemical equation: CaCO3 --> CO2 + H2O
What is 5 in the following UNBALANCED chemical equation? CaCO3 --> CO2 + H2O
300
The definition of matter.
What is anything that has mass and takes up space?
400
The location of electrons.
What is the electron cloud (or electron shells/energy levels)?
400
The name of what happens when chemical bonds break and new bonds form.
What is a chemical reaction?
400
Soil, a salad, and sugar water.
What are examples of mixtures?
400
CaCO3 (not the compound!)
What is a chemical formula?
400
the definition of the Principle of conservation of mass.
What is "mass cannot be created or destroyed"?
500
Valence electrons.
What are the electrons found in the outside shell of an atom.
500
The 2 products in the following reaction: NaHCO3 + Vinegar --> _______ + _________
What are H2O (water) & CO2 (carbon dioxide)?
500
The number of Magnesium and Nitrogen atoms required to make a chemical bond between these elements?
What is Mg3N2?
500
Each family in the periodic table has its own characteristic properties based on the number of this type of particle.
What is the number of valence electrons?
500
The balanced equation for: ___H2O + ___CO2 --> ___C6H12O6 + ___O2
What is: 6 H2O + 6 CO2 --> ___C6H12O6 + 12 O2
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