Atoms
Elements
Molecules
Compounds
Vocab
100
How many atoms are in this formula?
H2O
Three atoms:
Hydrogen = 2
Oxygen = 1
100
What is on the periodic table?
Elements
100
Which is an example of a molecule? C2, He, NH3, Br, H2O
C2
100
Which is not a compound? CO, H2, NH3, CH4
H2
100
What are pure substances that are not able to be broken down chemically called?
Elements
200
How many atoms are in this formula?
Na2
2 atoms
Na = 2
200
C, H, N, and O stand for what elements?
Carbon, Hydrogen, Nitrogen, and Oxygen
200
This molecule, made up of two hydrogen atoms and one oxygen atom, is essential for all life on Earth.
(10 Bonus Points if you tell me what it makes)
H2O=Water
200
How many compounds are in this formula?
CO2 + H2O -> C6H12O6 + O2
Three compounds
CO2, H2O, C6H12O6
O2 is a molecule
200
What makes up elements?
Atoms
300
How many atoms are in this formula: H2SO4
7 atoms.
Hydrogen = 2
Sulfur = 1
Oxygen = 4
300
How many elements are in this formula: C7H5(NO2)3
4
300
This simple molecule consists of one carbon atom and two oxygen atoms and is a major contributor to the greenhouse effect.
(10 Bonus Points if you tell me what it is)
CO2=Carbon dioxide
300
Is this a compound?
No, because all atoms are the same.
300
Two or more atoms of different elements that are chemically combined is called a
Compound
400
How many atoms are in this formula: C4H10
14 atoms
400
How many elements are in this formula?
Ca3(PO4)2
3
400
True or False a molecule can be a compound?
True
400
Is this molecule a compound?
Yes
400
Two or more of the same atoms chemically combined is called a
Molecule
500
How many atoms are in this formula: 2CaH2PO4
16 atoms
Ca=2, H=4, P=2, O=8
500
How many atoms and how many elements are in this formula?
HgBr2
3 atoms, 2 elements.
500
What is the difference in a compound and a molecule?
All compounds are molecules with different elements, but not all molecules are compounds.
500
How many compounds are in this formula?
CH4 + Cl2 --> CCl4 + HCl
Three compounds
500
True/False:
Compounds cannot be chemically broken down, while elements can.
False