The answer is A i think from the options though the answers are worded a bit weird
Answer:
A structure made up of two or more types of tissue is an organ
Explanation:
Hope this helps
Ph= -log[h30]
Ph= -log[1.7x10^-4]
pH= 3.77
pH is acidic
Answer:
Following are the solution to the given points:
Explanation:
In point a, the answer is only ions because of
has a strong electrolyte.
In point b, the answer is the only molecules because of ethanol
, it has a nonelectrolyte.
In point c, the answer is the few ions because of hydrocyanic acid HCN, which has a weak electrolyte.
Nitrogen atom has a valence electrons of 5 electrons. A full octet or full valence electrons shell is composed of 8 electrons. Hence, an additional of 4 electrons are needed for it to become full. this is achieved by covalent bonding where electrons are shared or ionic bonding where electrons are transferred.