Answer : If an increase in temperature accompanies a reaction, energy is released. Explanation :In thermodynamics, the reaction is considered as a system and the medium in which the reaction occurs which is usually an aqueous medium is considered as its surrounding. When the heat flows from the system to its surrounding, it increases the temperature of surrounding medium because the heat released by the system is absorbed by its surrounding. This is known as exothermic reaction. An exothermic reaction is always accompanied by energy release. On the other hand, when the heat flows from the surrounding towards system, it decreases the temperature of the surrounding medium. This is known as endothermic reaction. From the above discussion we can say that If an increase in temperature accompanies a reaction, energy is released.
Good luck ;)
Answer:
41.9 g/ mol hope that helps you out
Explanation:
d=p.m/ r.t
It should be remembered that the mole fraction of any component making up a system is 1.
<h3>A mole fraction is what?</h3>
the proportion of the moles of one component to the total moles of all the components in a solution or other mixture.
<h3>What is mole fraction and an example of it?</h3>
The ratio of molecules of one component in a mixture is known as a mole fraction. For instance, if the methane mole fraction in a gas is 0.90, then this implies that 90% of the molecules are methane. The mixture also contains 90% methane since the amount fractions resemble mole fractions.
<h3>How is the mole fraction determined?</h3>
By dividing the moles of the solute by the total moles of the substances in the solution, you may determine the mole fraction of the solute.
learn more about mole fraction here
<u>brainly.com/question/20343503</u>
#SPJ4
Answer:
superstition
Explanation:
Because there is no scientific reason behind it and no connection of it to science.
Answer:
D. 4 protons 2 neutrons and 4 electrons