Question

you mixed two liquids and a precipitate formed, what kind of change occurred? a) chemical b) physical 10 what happens when sugar dissolves in water? a) chemical change because the sugar is just getting smaller b) chemical change because a new substance is formed c) physical change because the sugar is just getting smaller d) physical change because a new substance is formed 11. signs of a physical change. a) tear b) compress c) precipitate d) shatter

Explanation:

1. When two liquids are mixed and a precipitate forms, it is a chemical change. A chemical change results in the formation of a new substance with different chemical properties. A precipitate is a solid that forms from a solution during a chemical reaction.
2. When sugar dissolves in water, it is a physical change. The sugar molecules disperse in the water but no new substance is formed. The sugar can be recovered by evaporating the water.
3. Tearing, compressing, and shattering are signs of physical changes as they only change the physical form or state of a substance without altering its chemical composition. Precipitation is a sign of a chemical change as it involves the formation of a new solid substance from a solution.

Answer:

1. a) Chemical
2. c) Physical change because the sugar is just getting smaller
3. a) Tear, b) Compress, d) Shatter