HELP ME ASAP PWEASS!!! Data Table
On the table below, record your observations before and after the interactions and explain how mass was conserved. Describe the changes in properties that prove a chemical reaction occurred. The first row is an example.

Observations Before Interaction
Observations After Interaction
How was mass conserved?
Proof of a Chemical Reaction
Example: Sugar + Heat
The sugar is in tiny white particles in a pile. Heat is not seen but is implied by the heat source. The pile of sugar in the pot has a mass of 100 grams.
There is a solid, light brown mass at the bottom of the pot. It has a mass of 100 grams.
The mass of the sugar is the same in melted form as it is in solid crystal form.
There was not a chemical reaction. Sugar did not change composition. It only melted. Melting point is a physical property, and this is a physical change.
Steel Wool + Oxygen (Fire)

Egg + Heat

Water + Heat

Zinc + Hydrogen Chloride

Sodium Hydroxide + Copper Sulfate