2. Wood burning in a fireplace is a: a) Chemical change b) Physical change

Use solubility rules to predict whether precipitates will form when the following pairs of solutions are mixed. If a precipitate forms, write a full and net ionic equation for the reaction. Include the colour and states of reactants and precipitate. Note: if colour is not stated, assume it is colourless. (a) copper(li) sulfate and sodium carbonate

6. In the phase, atoms of a substance have the most energy a) Solid b) Liquid c) Gas

4. Dissolving is a: a) Chemical change b) Physical change

Based on the picture, 1. What represents the plates? 2. What represents the mantle? 3. Where is the heat source? 4. Why are the blocks of wood floating? 5. Which part of the water has a greater density? Lesser density? 6. Explain convection current

7. is a phase change from gas to liquid a) Melting b) Boiling c) Freezing d) Condensing