Answer:
The angle at which the light from the ray box strikes the mirror
Explanation:
The independent variable is the variable that the investigator changes. The question states that Alice "changed the angle at which the light from the ray box struck the mirror."
The light box and the direction of the ray are wrong. They are controlled variables.
The angle of the reflected light is wrong. It is the dependent variable.
Answer: The substance is in the gas phase only in region 5
The substance is in both the liquid and the solid phase in region 2
The substance is in only the liquid phase in region 3
The melting point is the temperature at region 2
The boiling point is the temperature at region 4
Explanation:
Answer:
A.moles of solute per liter of solution
Explanation:
the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams.
:-befrank