E is the answer.
A gas during a collision is elastic, and there is no other option that matches gas behaviour so E is the answer.
Hope it helped!
Answer:
2.5L [NaCl] concentrate needs to be 4.8 Molar solution before dilution to prep 10L of 1.2M KNO₃ solution.
Explanation:
Generally, moles of solute in solution before dilution must equal moles of solute after dilution.
By definition Molarity = moles solute/volume of solution in Liters
=> moles solute = Molarity x Volume (L)
Apply moles before dilution = moles after dilution ...
=> (Molarity X Volume)before dilution = (Molarity X Volume)after dilution
=> (M)(2.5L)before = (1.2M)(10.0L)after
=> Molarity of 2.5L concentrate = (1.2M)(10.0L)/(2.5L) = 4.8 Molar concentrate
Electrically neutral molecules formed by covalent bonds between atoms that have the same or similar electronegativity are called Nonpolar.
Polar on the other hand is a term that describe a molecule with an asymmetrical distribution of charges. such a molecule has a negative pole and a positive pole.
Answer:
True.
Explanation:
When copper and nitrogen combine they formed the bond which is called ionic bond.
Ionic bond:
It is the bond which is formed by the transfer of electron from one atom to the atom of another element.
Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.
For example:
The electronegativity of nitrogen is 3.04 and that of copper is 1.9. Nitrogen required three electrons to complete the octet while copper loses its one valance electron to complete the octet. Thus when both combine nitrogen atom accept three electrons from three atoms of copper and form ionic bond. The compound formed is called copper nitride.
Cu₃N
Cu₃⁺³ N⁻³
What does the Bible teach us on how to pray to God?
- <em>Jesus</em><em> </em><em>taught</em><em> </em><em>that</em><em> </em><em>when</em><em> </em><em>we</em><em> </em><em>pray</em><em> </em><em>we</em><em> </em><em>should</em><em> </em><em>not</em><em> </em><em>be</em><em> </em><em>like</em><em> </em><em>hypocrites</em><em> </em><em>and</em><em> </em><em>when</em><em> </em><em>you</em><em> </em><em>pray</em><em> </em><em>go</em><em> </em><em>to</em><em> </em><em>your</em><em> </em><em>room</em><em>,</em><em> </em><em>close</em><em> </em><em>the</em><em> </em><em>door</em><em> </em><em>and</em><em> </em><em>pray</em><em> </em><em>to</em><em> </em><em>your</em><em> </em><em>father</em><em> </em><em>who</em><em> </em><em>is</em><em> </em><em>unseen</em><em>.</em>