Changes in Rx
A ________ change could change an object's shape or size
physical change
How many phosphorus atoms are present? Fe3PO4
What is 1?
When undergoing a chemical change, atoms will be created, destroyed or rearranged?
Rearranged
A ____________ change could make a NEW substance
chemical change
How many elements are present? NaOH + SO2
What is 4?
If a reaction starts with a mass of 500g what will the products have?
What is 500g?
When energy is absorbed how does temperature change?
Energy decreases
How many total atoms are present? 2 PbNO3
What is 10?
In a chemical change, _______ -> ______
Which side is the product and which is the reaction?
What is a reactant -> product?
In a exothermic reaction, temperature first increases because energy is _____________________
(think of a handwarmer)
Released
Which element has the most atoms in AuI + IO
What is Iodine?
P2OH -> P2O + H2
Follows the conservation of mass (True or False)
False because the hydrogen atoms are not the same amount
Look at the graph on the board and determine its trend
Decreasing then increasing, then decreasing