Question

this is a \drag and drop\ style question. drag the items on the right to their correct position on the diagram. if water is heated from its solid state it undergoes a phase change and a graph called a heating curve is obtained as shown below. label the boiling and melting point, the line segment that represents the liquid, solid and gas phase. drag & drop the answer gas solid liquid note: use ctrl+d to drag the option via keyboard.

Explanation:

Water's melting point is 0°C (where solid - liquid phase change occurs) and boiling point is 100°C (where liquid - gas phase change occurs). On a heating curve, the flat - line at 0°C represents the melting process (solid to liquid), the flat - line at 100°C represents the boiling process (liquid to gas). The segment between 0°C and 100°C represents the liquid phase, the segment before the 0°C flat - line represents the solid phase, and the segment after the 100°C flat - line represents the gas phase.

Answer:

From left to right on the heating curve:

• The first flat - line segment at 0°C: SOLID (melting process starting from solid state)
• The segment between 0°C and 100°C: LIQUID
• The second flat - line segment at 100°C: GAS (boiling process starting from liquid state)