Question

Cân bằng phương trình phản ứng:

\(k\text{)}Ca+HCl\rightarrow CaCl_2+H_2\uparrow\)

\(j\text{)}Al+HCl\rightarrow AlCl_3+H_2\uparrow\)

\(i\text{)}Mg+O_2\rightarrow^{t^o}MgO\)

\(y\text{)}Na+H_2O\rightarrow NaOH+H_2\uparrow\)

Answer 1

k) Ca + 2HCl -> CaCl2 + H2

j) Al + 3HCl -> AlCl3 + 3H2

i)2Mg + O2 -> 2MgO

y) 2Na + 2H2O  -> 2NaOH +H2