Atoms
Periodic Table
Chemical Formulas
Chemical Equations
100
I'm very positive and I have mass
Protons
100
What direction do the groups go?
Up and down
100
How many oxygen atoms are in CHO3
3 atoms
100
The total number of elements is determined by what?
The capital letters
200
I am negative and very small
Electrons
200
What direction do the periods go?
Left and Right
200
How many atoms of Carbon, Hydrogen and Oxygen are in 2CHO4
C=2, H=2, O=8
200
The amount of atoms for a singular element is determined by the what?
Subscript
300
I am the hangout spot for all the mass
The nucleus
300
How do you determine the number of valence electrons?
The number underneath the group number aka the "A" family number.
300
In a chemical reaction what are the ingredients called that undergoes change?
Reactants
300
A chemical reaction in which calcium carbonate, CaCO3, is decomposed in the production in the production of two simpler compounds.
What mass of calcium carbonate, to the nearest hundredth of a gram, is decomposed in this reaction?
49.97g
400
The home of negative subatomic particles
Electron Cloud
400
I have 8 electrons...what is my identity?
Oxygen
400
In a chemcial reaction what are the materials that come out of the reaction called?
Products
400
How many Carbon, Oxygen and Hydrogen atoms did the chemical reaction yield?
C=1, H=4, O=4
500
An atom of Potassium 19 protons, 19 electrons and 20 neutrons. How many subatomic particles are inside the nucleus?
39
500
Group 16; Period 5...what element is this?
Tellurium
500
What is the rule that makes tells us that the mass of reactants must be the same as the products?
The Law of Conservation of Mass
500
What are the five evidences of change?
Bubbling, Color Change, Change in color, Change in Odor and Formation of Precipitate.