An example of a chemical reaction is?

Question

1)
-the formation of ice from distilled water
-producing a thin film of soap solution
-a coughing fit during a chem test
-cooking an egg

2) What means "yeilds" or "produces" in a chemical equation?
-reactants
-products
-arrow symbol
-precipitate

3)A precipitate
-is a solution created when two materials are mixed
-is a reaction that gives off heat
-forms when light is given off during a chemical reation
-is a solid produced when chemicals dissolved in water react

4) A chemical change
-occurs when electricity is passed through the object
-occurs when anything is heated
-occurs when a substance is changed into a new substance
-as any situation involving chemicals

Answer 1

1. coooking an egg
2. reactants
3. is a solid produced when chemicals dissolved in water react
4. occurs when a substance is changed into a new substance

Answer 2

Boiling Water. A) is DEFINITELY a Chemical Reaction! B) is a chemical reaction because The Iron in steel reacts with the water, forming RUST! C) would NOT be a chemical reaction because there is only one chemical within the solution. (The water is not reacting with anything) D) is a chemical reaction because it has to react with the match and the lighter on the box to make a flame.

Answer 3

Pretty sure 1 is D
2 is C
3 is D
4 is C

Answer 4

1a
2c
3d
4c