Question

pregunta 6 (1 punto)
is this a chemical or a physical change?
you combine two clear liquids, and once mixed they turn cloudy - white in color.
a physical change
b chemical change

pregunta 7 (1 punto)
is this a chemical or a physical change?
water that is dyed blue is mixed with water that is dyed yellow. once mixed the color of the water is green.
a physical change
b chemical change

pregunta 8 (1 punto)
is this a chemical or a physical change?
cutting an apple in half.
a physical change
b chemical change

Explanation:

1. For Pregunta 6: When two clear liquids turn cloudy - white upon mixing, a new substance is likely formed, which is characteristic of a chemical change.
2. For Pregunta 7: Mixing dyed water (blue and yellow to form green) is just a mixing of substances without forming a new chemical compound, so it's a physical change.
3. For Pregunta 8: Cutting an apple in half only changes its physical shape and form, not its chemical composition, so it's a physical change.

Answer:

Pregunta 6: b. Chemical change
Pregunta 7: a. Physical change
Pregunta 8: a. Physical change