As two clear liquid solutions are added together, a red solid forms. This change is most likely?

Question

physical
chemical
both chemical and physical
neither chemical nor physical



Which of the following is a chemical property of matter?


freezing point

color

density

flammability

Which of the following is a physical property of matter?

produces a gas when placed in an acid
freezes at -10°F
the surface turns black in air
it does not burn

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The melting of ice to liquid water is correctly classified as

a physical change
both a chemical and a physical change
a chemical change
neither a chemical nor a physical change

Answer 1

1) Both chemical and physical. A chemical reaction took place resulting in a chemical change (formation of the solid) and changing the colour which is a physical property.

2) Flammability is a chemical property. All the rest deal with physical attributes.

3) Freezing point is a physical property.

4) When ice melts or water freezes its still water either way. So its a physical change.

Answer 2

chemical, freezing point

Answer 3

the above answer is right