Answer:
d. van der waals force
Explanation:
Van der Waals force :
the weakest intermolecular forceand consist of dipole-dipole force and dispersion force.
Answer:
Option a, ![H_2SO_4](https://tex.z-dn.net/?f=H_2SO_4)
Explanation:
According to Arrhenius concept of acids and bases, acids are those substances which releases H+ in aqueous solution and bases are those which releases OH- in aqueous solution.
Among the given only
can release
in aqueous solution.
![H_2SO_4 \rightarrow 2H^{+} + SO_4^{2-}](https://tex.z-dn.net/?f=H_2SO_4%20%5Crightarrow%202H%5E%7B%2B%7D%20%2B%20SO_4%5E%7B2-%7D)
LiOH releases
, therefore it is an Arrhenius base.
and
cannot releases
.
So, the correct option is option a.
It's a chemical change. In synthesis you add compounds which form new ones. This means that it cannot be a physical or phase change because you form something new. Not all synthesis and decomposition reactions use nuclear energy therefore it is a chemical change.
Answer:
The water molecule is comprised of two hydrogen (H) atoms and one oxygen atom, oxygen atom has 8 electrons, and each H has 1 electron. The H atoms bond to the oxygen by sharing a pair of electrons in what is called a covalent bond. In each pair of shared electrons, one electron is contributed by the H (black) and one from the oxygen (red).
Explanation:
have a great day and please mark brainliest
When two magnets are brought near each other, like poles repel; opposite poles attract. When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.