well I know that sand do disappear in water.And sand isnt the the right thing for gowing plants.And sand will hold water
the correct answer is combustion
when an organic compounds burns in the presence of oxygen the products are carbon dioxide and water. Combustion reactions yields a large amount of energy
an example for combustion reaction is as follows
combustion of methane;
CH₄ + 2O₂ --> CO₂ + 2H₂O
correct answer is
2. combustion
Answer:
2k+2hcl---2kcl+h2
Explanation:
because we have to balance it and in order to balance it we have to make it in equal form
Explanation:
A process in which water vapor changes into liquid state is known as condensation. As we know that when energy is released in a reaction then it is known as exothermic reaction and when energy is absorbed in a reaction then it is known as endothermic reaction.
As vapors have high energy so, when they change into liquid state then heat energy is released by them. Therefore, condensation is an exothermic reaction.
As per Le Chatelier's principle, any disturbance caused in an equilibrium reaction will tend to shift the equilibrium in a direction away from the disturbance.
So, when there will occur a decrease in temperature then molecules of a gas will come closer to each other. Hence, there will also occur a decrease in vapor pressure of the gas.
