Which is not a possible clue that a chemical change has occurred?

A. The color changes.

B. The substance melts.

How do you explain why the addition of silver nitrate to the Fe/SCN equilibrium had an effect on the equilibrium, even though neither silver ion nor nitrate ion is written as part of the equilibrium reaction?

Why does plastic wrap need more friction

If the EMF produced in a wire is 0.88 volts and the wire moves perpendicular to a magnetic field of strength 0.075 newtons/amp·meter at a speed of 4.20 meters/second, what is the length of the wire in the magnetic field? a. 0.27 meters b. 2.

Which factor is most important in determining the erosive power of a stream? A. stream velocity B. dissolved load C. channel width D. stream discharge

Truebor false is a substance is made of equal parts, the substance is knowns as complex substance

2 human activities that contribute to runoff into water systems

Which of the following is an example of geographic isolation? A. a population of salmon dies out because they cannot find food. B. a zebra with a long mane moves into a population of zebras with short manes. C.

What are moles in chemistry?

How did John dalton describe atoms?

Which of the following statements describes a physical property? The substance has a higher density than water. A. The substance forms a solid when reacted with silver nitrate. B. The substance is highly reactive. C.