When the molarity = moles / volume
so, we need to get the moles of MgCl2:
when moles = mass / molar mass
so, by substitution:
∴ moles = 0.25g / 95.211g/mol
= 0.0026 moles
∴`the molarity = 0.0026 / 0.05L
= 0.052 M
Answer:
Charge is caused by a flow of electrons, since electrons are around the nucleus they can be lost or gained by atoms. When an atom gets charged, it gains a charge, that is, it gains an electron. Since electrons are negatively charged, when an atom gains one, it also becomes negatively charged.
Answer:
hydrant flying with balloon, balloon has lithp letting air out, bee: really yum balloon
= = = =
hydrogen helium lithium beryllium
be bore on the balloon, balloon pops, hydrant drops and makes a car bomb
= =
boron carbon
night row general gets hurt by car bomb nearby, that general gets off boat
=
nitrogen
wearing oxygen mask, mask is full of fluride gel, then he got neon teeth
= = =
oxygen fluorine neon
(try making a story out of the elements, use your imagenation)
Hey there!
When work is done on an object, the amount of energy it has changes.
Hope this helps!
~Autumly
Answer:
D, They produce fossil fuels
Explanation:
you can't just pull them out of nowhere