Do you know the signs?
Chemical formulas
Chemical reactions
vocabulary
RANDOM!
100
This is an example of what kind of change?
Chemical change
100
In formula C6H12O6 + H2O ---> C6H14O7 What is the product?
C6H14O7
100
Which reaction combines a hydrocarbon with an oxygen?
Combustion
100
__________ are material that increases the rate of reaction by lowering the activation energy
Catalyst
100
What was the name of the first president?
George Washington
200
What does reactivity mean?
two elements react to each other.
200
In formula C6H12O6 + H2O ---> C6H14O7 What is the Reactants?
C6H12O6 + H2O
200
What is the difference between single replacement and double replacement reaction?
in a single replacement reaction only one atom is swapped in a double replacement two atoms or molecules are swapped.
200
_____________ are substances that are destroyed by the chemical change (bonds break).
Reactants
200
What is the common name of NaCl?
Salt.
300
This picture is an example of what kind of chemical change
rusting
300
How many carbons are in the chemical C6H12O6 + H2O
6
300
•Mg3(PO4)2
•Mg = ____
•P = ____
•O = ____
•Mg3(PO4)2
•Mg = 3
•P = 2
•O = 8
300
What vocabulary word means ________ indicates the elements present in a compound and the relative number of atoms of each.
Chemical formula
300
What is the closes star to earth?
The sun
400
List one example of a chemical change
tarnishing, polymerization, rusting,burning, decomposition.
400
How many hydrogens are in this chemical equation?C6H12O6 + H2O
14
400
Which type of reaction is considered the "break-up" reaction and why?
Decomposition Molecule and because the compound are broken down into smaller molecules.
400
Energy needed to start a chemical reaction
activation energy
400
Who was homecoming queen?
Da'Naeja Aubrey
500
What are te five signs of a chemical reaction?
Bubbling, precipate, color change, temperature increase, and light formation.
500
Is this equation balanced? How many total atoms are found in the product?
N2 + H2 ----> NH3
It is not balanced.
there are four atoms altogether.
500
why is electrolysis condsidered an decomposition reaction?
Because water was broken down into gas.
500
Which type of chemical formual gives the actual number of atoms of each element in a molecule of the compound.
molecular formula
500
What is the difference between endothermic and exothermic reactions?
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.”