Changes
The number of substances joined together to form new chemical properties.
What is two or more?
The smallest unit of matter.
What is an atom?
Na on the Periodic Table.
This must be present for a chemical formula to become a chemical equation.
What is a yield sign?
What are states of matter?
Painting a wall is this kind of change.
What is physical change?
This is the negative charged particle that orbits the neucleus.
What is an electron?
Atomic number 26 on the Periodic Table.
What is Iron?
These are the ending materials of a chemical reaction.
What are products?
The starting materials in a chemical reaction.
What are reactants?
List 2 evidences of a chemical change.
What is:
Gas formation/bubbles, light production, precipitate forming, permanent color change, temperature change
A pure substance made up of two or more elements chemically combined.
What is a compound?
This was used to put elements in order on the current Periodic Table.
What is Atomic Number?
This represents the number of molecules of specific chemical in a chemical equation.
What is coefficient?
An ice pack is an example of this type of reaction
What is endothermic reaction?
Tarnishing is this kind of change.
What is chemical change?
True or False? The material that gains electrons becomes negatively charged.
True
Protons + Neutrons
What is atomic mass or mass of the nucleus?
The only operation that can be performed to balance a chemical equation.
What is multiplication?
Coffee with creamer is an example of this type of mixture.
What is homogeneous?
When two liquids mix together and form a solid.
What is a precipitate?
Molecules that are made of just two atoms, which can be the same or different.
What is a diatomic molecule?
The number of electrons in a Titanium atom.
What is 22?
C12H22O11 has this number of atoms.
What is 45?
DAILY DOUBLE: This individual was the father of the periodic table, originally arranging the periodic table by the atomic mass.
Who is Dmetri Mendeleev?