subject
Chemistry, 16.12.2020 22:50 jazzy2742

A student adds red food coloring to water and observed the dye spreading out to fill the container. This student claimed that the experiment resulted in a color change, and therefore, showed a chemical change or reaction. The student’s claim is incorrect. Which of the following statements would correctly refute this student’s claim?. A.
There is no reason to refute the student’s statement. Color changes always indicate a chemical reaction.

B. Color change alone does not indicate a chemical reaction. Another indicator of chemical reaction must accompany the color change.

C. Since color is not a property of matter, a change in color provides no information about the changes occurring in matter.

D. While color change is an indicator of chemical reaction, it does not always indicate chemical change. Adding red dye to water does not change the composition of the water; it only changes the appearance of the water

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 16:10
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
question
Chemistry, 22.06.2019 18:30
The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
question
Chemistry, 22.06.2019 21:20
If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied
Answers: 1
question
Chemistry, 23.06.2019 09:10
A155.0 9 piece of copper at 182 °c is dropped into 2500 g of water at 23.9 °c. (the specific heat of copper is 0.385 1/9°c.) calculate the final temperature of the mixture. (assume no heat loss to the surroundings.)
Answers: 2
You know the right answer?
A student adds red food coloring to water and observed the dye spreading out to fill the container....
Questions
question
Medicine, 13.04.2020 04:40
Questions on the website: 13722361