Answer:
The 3rd choice
Explanation:
A strong acid ionises COMPLETELY in water to produce high concentration of hydrogen ions
A weak acid ionises PARTIALLY in water to produce low concentration of hydrogen ions
Chlorophyll, it is chlorophyll
Answer:
0.071 mole
Explanation:
As discovered from Avogadro's hypothesis, 1 mole of any substance contains 6.02x10^23 molecules.
This simply means that 1 mole of H3PO4 also contains 6.02x10^23 molecules.
If 1 mole H3PO4 contains 6.02x10^23 molecules,
Then, xmol of H3PO4 will contain 4.3x10^22 molecules i.e
Xmol of H3PO4 = 4.3x10^22/6.02x10^23 = 0.071 mole
From the calculations made above, 4.3x10^22 molecules of H3PO4 have 0.071 mole of H3PO4
Answer:
cell membrane
Explanation:
it controls what comes and goes out of a cell
<span>D. a bond in which electrons are transferred
</span>Ionic bonding<span> is the complete transfer of valence electron(s) between atoms</span>
