Explanation:
Chemical reactions can occur very slow or very fast depending on the following conditions:
- If the reactants are in solid phase, less surface area is exposed and the process proceeds very slowly. The exposed surface area is directly proportional to the rate of chemical reactions.
- If the concentration of the reactants are low. For gaseous systems, low pressure can inhibit the progress of chemical reactions.
- If the reaction is taking place at low temperature.
- No presence of a catalyst.
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Answer:
Melting point is the temperature at which solid and liquid phases of a substance are in equilibrium.
Boiling point is the temperature at which its vapour pressure is equal to the external pressure.
Answer:
2:A handwarmer gets warm when it is opened and exposed to air.
3:Propane ignites to heat a grill.
4:Cotton is dyed red to make a dress.
Explanation:
The definition of a chemical property is when a property of characteristic of a substance that is <em><u>observed</u></em> during a reaction in which a chemical has been changed
The answer is a bit ambiguous since the kinetic molecular theory refers to the behavior of gas molecules, and says that these are in continuous and random motion. All substances with certain conditions of temperature and pressure can be taken to a gaseous state, so I could tell you that this answer is true.
Water that is returned to the environment after secondary treatment is known as effluent
