Periodic Table
What does the atomic number tell us?
The amount of protons and electrons
DAILY DOUBLE: 2X THE POINTS
Draw an example of a physical change
ripped paper, broken plate, crushed can, boiling water, etc
What are the 3 states of matter?
solid, liquid, gas
how many total atoms are there in H2O?
there are 3 total atoms
define the law of conservation of matter/mass
matter cannot be destroyed or created
DAILY DOUBLE: 2X THE POINTS
How do we find the amount of neutrons?
the atomic mass rounded - atomic number
Draw an example of a chemical change
avocado turning brown, baking a cake, wood burning, fireworks, etc
What is the process called from going solid to liquid?
What is the process called from going liquid to solid?
Melting and freezing?
What is the difference between O2 and 2O in an equation?
(Hint: what do the small number mean and what does the big number mean in an equation?)
the small number is only for that element while the big number is for the whole equation
What are reactants?
the starting materials that undergo a change
Using your periodic table, what element is
Period 9 Group 4
Cobalt
Name the 3 pieces of evidence as to why it is a physical change
Change in Temperature
Change in Appearance (size, texture, color)
Change in State of Matter
What are the kinetic energy differences between solid, liquid, and gas?
(Hint: How is the kinetic energy in each form)
Solid has the least amount, liquid has more than solid, and gas has the most
DAILY DOUBLE: 2X THE POINTS
How many Fe, S, and O atoms are there?
10FeSO8
Fe:10
S:10
O:80
What are products?
the new substances formed as a result of that change
Europium has an atomic number of 63 and a rounded atomic mass of 152. How many protons, neutrons, and electrons does it have?
Protons and Electrons = 63
Neutrons = 89
Name 3 pieces of evidence as to why it is a chemical change?
*if you name all 4, you get an extra 100 points*
Change in Temperature
Change in Color
Formation of a Gas
Formation of a Precipitate
Draw solid, liquid, and gas on a molecular level
solid: the molecules should be tight and compact
liquid: the molecules should be not as tight not as loose
gas: the molecules are spread out
How many C, H, and O atoms are there?
3C4H12O6
C: 12
H:36
O:18
DAILY DOUBLE: 2X THE POINTS
Look at the white board
This is a MCAS question and was on your practice test
equal amount of hydrogens and oxygens on both sides of the equation
Using your periodic table, what element is
Period 17 Group 7
Tennessine
What is the difference between physical and chemical change?
physical changes are reversible, whereas chemical changes are usually not.
DAILY DOUBLE: 2X THE POINTS
What is the process called going from gas to liquid?
What is the process called from going gas to solid?
condensation and deposition
How many Mg, Au, and I atoms are there?
4Mg(Au5I3)2
Mg: 4
Au: 40
I: 24
Name the 5 properties that we use to differentiate between elements or compounds
(Hint: think back to the properties matching game worksheet that you did)
density, flammability, melting point, boiling point, and solubility