32 là phân tử khối của oxi

A. Tự nhận thức bản thân.

D, have-> has

D. society-> sociable

A. Off all-> All off

Phân tử nhé

C2:

\(n_{O_2}=\dfrac{6,72}{22,4}=3\left(mol\right)\)

\(sophantuO_2=3.6.10^{23}=18.10^{23}\)

\(m_{O_2}=3.32=96\left(g\right)\)

C1: \(n_{CO_2}=\dfrac{11}{44}=0,25\left(mol\right)\)

\(sophantuCO_2=0.25.6.10^{23}=1,5.10^{23}\)

 \(n_{H_2}=\dfrac{9.10^{23}}{6.10^{23}}=1,5\left(mol\right)\)

\(V_{H_2}=1,5.22,4=33,6\left(l\right)\)

I’m considering your proposal. (thinking) => 10.He turned down the job since the salary is low.( because of) =>

I don’t run as quickly as I used to last year.( than) → Last year,I…………………………………………………………………………………