How do i know when it form precipitate?

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

In which situation can a mixture always be called a solution

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.