Unit 4.3 Representations of Reactions
Represent a physical change with a particle diagram showing a difference
in particle spatial arrangement.
- Draw a particle diagram for H₂O in solid and liquid phases.
Draw a particle diagram for a chemical process with equal numbers of
atoms before and after the change.
-
Sketch hydrogen and oxygen molecules reacting to form water molecules.
Draw a particle diagram for a chemical change that balances charge.
-
Show NaCl(s) dissolving in water, with Na⁺ and Cl⁻ ions represented
correctly.