The answer is D you correct
Answer:
C: H₂
Explanation:
H₂ (Two hydrogen atoms) is a nonpolar bond, also known as a diatomic molecule. They form a nonpolar covalent bond because their difference in electronegativity is 0.
Answer:
it is the formulae of glucose
It is a compound made of carbon,oxygen,hydrogen
Answer:
The concentration of Cl in the solution is 1 M (option E)
Explanation:
MgCl₂ is an ionic compound, where subscript 2 indicates that it contributes 2 anions (negatively charged ions) Cl- to the solution. And you know that 0.20 moles of MgCl₂ are dissolved in water. Then, by multiplying this amount by the subscript, you get the amount of the chlorine ion Cl- that contributes the MgCl₂ compound to the solution. Then it is obtained that said compound contributes 0.40 moles of the Cl- anion.
With a thought similar to the previous case, it can be seen that in this case 0.10 mol of the ionic compound KCl is dissolved in water, and that this compound in turn contributes only a Cl- anion to the solution. Then the KCl compound provides 0.10 moles of the Cl- anion.
On the other hand, molarity is the number of moles of solute that are dissolved in a given volume. It is expressed in the units (moles/liter).
Then, the volume in which the compounds are dissolved in the corresponding unit of measure must be expressed, that is to say in L. Knowing that 1 L is 1000 mL, then 500 mL represents 0.50 L.
And knowing that the MgCl₂ compound contributes 0.40 moles of the Cl- anion while the KCl compound contributes 0.10 moles of the anion, it is possible to say that in total there are 0.50 moles of the Clons present anion in the solution.
So:
<u><em>concentration of Cl= 1 mol/L= 1 M</em></u>
<u><em>The concentration of Cl in the solution is 1 M (option E)</em></u>
Answer:
The correct answer based on the criterion of whether the temperature increases or decreases.
Explanation:
If the ambient temperature increases when a reaction takes place, we can deduce that it is an exothermic reaction, since in this type of reaction the system gives heat to the environment, increasing the temperature.
On the other hand, if the ambient temperature decreases, we can deduce that we are in front of an endothermic reaction, since in this type of reaction the system absorbs heat from the environment so the temperature decreases.
Have a nice day!