Definitions
Physical or Chemical Change?
Elements/Compounds
All the Solutions
Think Periodically
100
What is an Element?
A substance that contains ONLY ONE kind of atom, can't be broken down into a simpler form.
100
Is this a Physical Change or a Chemical Change?
Chopping wood
Physical Change
100
O6
Element or Compound?
Element
100
What is a Solute?
The substance that IS dissolved in the solvent (i.e. Salt)
100
What is this chart called?
Periodic Table of Elements
200
What is a solution?
Combination of a solvent and a solute.
200
Is this a Physical Change or a Chemical Change?
Burning Wood
Chemical Change
200
Na(ClO4)
Element or Compound
Compound
200
What is an example of Agitation?
Stir, shake, or swirling a substance
200
What kind of substance is in the periodic table?
Elements
300
What is a Compound?
A substance made of 2 or more kinds of atom, and can't be broken down into a smaller form.
300
If a change results in a gas forming it is a _____________ change.
Chemical
300
How many numbers of atoms are in:
FeCl4N5
What types of atoms?
Fe:1
Cl: 4
N: 5
Total: 10
300
_______________: A measure of how quickly a solute dissolves in a solvent.
Rate of Dissolution
300
What is this Element's Chemical Symbol?
Co
400
What is the substance in which another substance is dissolved? (i.e. Water)
Solvent
400
water -> ice is an example of a ________ change
Physical
400
How many atoms are in:
Mg3(PO4)2
And what types of atoms?
Mg: 3
P: 2
O: 8
Total: 13
400
Why is surface area important when dissolving a substance?
The more surface area, the quicker a substance will dissolve. (Like crushed sugar, vs a while sugar cube)
400
What is the Atomic Number of Cobalt?
27
500
What is a Molecule?
Two or more atoms that have chemically combined.
500
Color change is an example of a ______ change.
Chemical
500
Which number is an example of a subscript?
3C6H12O6
6,12,6
500
By adding water to the beaker, the liquid inside becomes lighter and lighter. This is an example of: __________
Dilution
500
What is the Atomic Weight of Neon?
20.18
600
What is the difference between a COMPOUND and a MOLECULE?
All compounds are MOLECULES, but not all molecules are COMPOUNDS.
600
To make Iced Tea, the first step is to heat the water to make dissolving sugar into it easier. Is this an example of a Chemical change, or a Physical change?
Physical Change
600
How many atoms are in:
6NH4OFe7
And what type of atom?
N: 6
H: 24
O: 6
Fe: 42
Total: 78
600
What do I need to do to make a solution more concentrated?
Increase the amount of solute in the solvent.
(Adding more drink mix to the Kool-Aid will make it more flavorful/concentrated.)
600
Give me an example of a Chemical Formula.
Open ended :)
