Answer:
are usually multicellular
contain a true nucleus
contain membrane-bound organelles
Explanation:
Of course, at STP, dioxygen is a gas, but 10.0 g is still 10.0 g. We could calculate its volume at STP, which is 22.4 L × its molar quantity, approx. 8⋅L . There are 1.51×1023molecules O2 in 10.0 g O2 .
<span>The symbol for hydronium ion concentration is H+. </span><span>There are quite a few
relationships between [H+] and [OH−]
ions. And because there is a large range of number between 10 to 10</span><span>-15</span><span>
M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, </span><span>[H+
][OH- ] = 10-14. From here we can derive the values of each concentration.</span>
Answer:
10
Explanation:
Deca or deka is a decimal unit prefix in the metric system denoting a factor of ten. For example, DECAGON is a 10-sided polygon (10-gon).
Answer:
AlBr3
Explanation:
Aluminum has three electrons on its valence shell. The Lewis model deals with combination of electrons on the valence shells of atoms to form compounds. Bromine has seven electrons on the valence shell of each bromine atom.
Three bromine atoms could combine with one aluminium atom to form aluminium bromide in which each bromine atom now has eight electrons in their valence shells according to the octet rule. Aluminium however will only have six electrons on its valence shell.