<div>Số lượng nguyên tử trong 1 mol chất là bao nhiêu?<br>
A. <span class="math-inline ">
<asciimath style="display: none;">6.022 xx10^(23)</asciimath><latex style="display: none">6.022 \times 10^{23}</latex></span><br>
B. <span class="math-inline ">
<asciimath style="display: none;">1.602 xx10^(-19)</asciimath><latex style="display: none">1.602 \times 10^{-19}</latex></span><br>
C. <span class="math-inline ">
<asciimath style="display: none;">3.14 xx10^(2)</asciimath><latex style="display: none">3.14 \times 10^{2}</latex></span><br>
D. <span class="math-inline ">
<asciimath style="display: none;">9.81 xx10^(3)</asciimath><latex style="display: none">9.81 \times 10^{3}</latex></span></div>
