There are negative ions and positive ions known as anions and cations.
Atoms of elements (besides the noble gases) are not stable.
These atoms lose or gain electrons to gain the stable electronic configuration of a noble gas which has either 2 electrons or 8 electrons in the valence shell.
Since an atom is neutral, once it loses or gain electrons, it gains charge and is known as an ion
A.
16 16 0
N -> O + e
7 8 -1
B.
40 40 0
K -> Ca + e
19 20 -1
In a pack of CaCl2 and H2O, hydrolysis of Ca+2 will occur
This will result in formation of Ca(OH)2.
The reaction is exothermic in nature
so the balanced thermo-chemical equation will be
CaCl2(aq) + H2O (l) ---> Ca(OH)2 + 2HCl + Heat
In a pack of NH4NO3 and H2O hydrolysis of NH4+ will occur as
NH4NO3 (aq) + H2O(l) + Heat ---> NH4OH(aq) + HNO3 (aq)
It is an endothermic reaction
Answer:
the last one, cuz water has a resistance force which slows it down
Explanation:
Because phospholipids have a polar end (phosphorus) and a non polar end (lipid). Similar things mix together so the phospho end likes water and the lipid end doesnt and it tucks inside the membrane
