V1M1 = V2M2
<span>V1 × 2.5 = 1 × 0.75,
so V1 = 0.75/2.5
= 0.3 </span>
Answer:
15 protons
8 electrons in valence shell after accepting 3 electrons
Neutral/no charge before accepting 3 electrons
-3 charge after accepting 3 electrons
Answer:
the answer to number 9 is A.
Explanation:
Answer;
-(3) an atom in an excited state
Explanation;
-An electron in a sodium atom gains enough energy to move from the second shell to the third shell. The sodium atom becomes an atom in an excited state.
-Ground state is the lowest allowable energy state of an atom. When electrons are subjected to stimuli like heat, light or electricity an electron may jump to a higher energy level, which is the excited state. Excitation is the elevation in energy level above the baseline energy state.
The recrystallization solvent ought to have a genuinely low breaking point since it makes it simpler for the solvent to vanish out when the arrangement air drys.The breaking point ought to be bring down the softening purpose of the compound.If the breaking point is bigger than the dissolving purpose of the intensify, the crystals will liquefy and turn out as an oil rather than crystals. This would be difficult to examine.
