Complete the statements by writing the number
1 answer:
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 :
Six phases of substance:
Melting or fusion : In this process the phase changes from solid state to liquid state at constant temperature.Freezing : In this process the phase changes from liquid state to solid state at constant temperature.Evaporation : In this process the phase changes from liquid state to gaseous state at constant temperature.Condensation : In this process the phase changes from gaseous state to liquid state at constant temperature.Sublimation : In this process the phase changes from solid state to gaseous state without passing through the liquid state at constant temperature.Deposition : In this process the phase changes from gaseous state to solid state without passing through the liquid state at constant temperature.
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Answer:In a physical change, atoms are not rearranged and the matter's physical and chemical properties are unchanged. Chemical changes, on the other hand, rearrange the atoms of matter in new combinations, resulting in matter with new physical and chemical properties.
Explanation:
easy
Answer:
the answer to number 9 is A.
Explanation:
C. heat tends to balance out and it must travel to cooler areas to balance out the temp
