Elements & Compounds
Counting Atoms
Random 1
Balanced or Unbalanced?
Random 2
100
What are elements represented by?
Capital Letter/ Chemical Symbol
100
What do we call the small number that tells you how many atoms there are?
Subscript
100
What is the difference between heterogeneous and homogeneous mixtures?
Heterogeneous- unevenly mixed
Homogeneous- evenly mixed
100
What does it mean for an equation to be balanced?
Same elements and number of atoms on both sides
100
What is the pH range for acids and bases?
Acids- 0-6
Bases- 8-14
200
What is a compound?
Two or more DIFFERENT types of atoms chemically combined.
200
Who does the coefficient talk to?
ERRRRBODDDYYY
200
How does artificial selection differ from natural selection?
Artificial selection happens when humans intervene. The process is much faster than natural selection.
200
The Law of Conservation of Mass states matter cannot be.......
Created nor destroyed
200
What landform is created when you have two oceanic plates diverging?
Mid- ocean ridge/ ocean basin
300
How many elements are in the following chemical formula:
CH₃COOH
3 elements; Carbon, Hydrogen, Oxygen
300
How many total atoms are in the following chemical formula:
2HCO3
10 atoms total
300
List 3 kingdoms that include multicellular organisms.
Plantae, Animalia, Fungi
300
Is the following equation balanced or unbalanced? Must show all work
P4O10 + H2O ---> H3PO4
Unbalanced
300
What are the 4 pieces of evidence that support the continental drift theory?
-Continents fit together like puzzle pieces
-Glaciers found in warm climates
-Similar rocks and landforms across continents
-Same fossils found of different continents
400
What is the chemical symbol for the elements:
-Chlorine -Sodium
-Aluminum -Iron
Chlorine-Cl Sodium-Na
Aluminum- Al Iron-Fe
400
How many atoms are present of each element in the following chemical formula
3NaC2H3O2
Na-3 H-6
C-6 O-6
400
Describe how adhesion and cohesion allow water to move upward through a plant stem.
Cohesion allows the water molecules to stick together. Adhesion allows the water molecules to stick to the sides of the stem as it travels up the plant.
400
Is the following equation balanced or unbalanced? Must show all work
NaOH + H2SO4 ---> Na2SO2 + H2O
Unbalanced
400
What is the function of the circulatory system?
To carry oxygen, nutrients, and waste to all cells in the body.
500
What is the chemical formula for table salt?
NaCl
500
How many atoms of oxygen are present in the following formula:
2Ca3(PO4)2
16 atoms of oxygen
500
What side of the periodic table do we find the metals? List 3 characteristics of metals.
Metals are found on the left side. Metals are great conductors, they are shiny, ductile, and malleable.
500
Is the following chemical equation balanced or unbalanced? Must show all work.
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
Balanced
500
What amount of energy is do the secondary consumers get?
8762.54 KJ