NH4OH + HNO3<span> = NH</span>4NO3<span> + H</span>2<span>O
m(</span>NH4OH)=m(NH4NO3)=0.12г
v(NH4OH)=0.12\76=0.003
V(NH4OH)=0.07л
А) оксид железа 2
б) оксид серы 4
в) оксид бария
г) оксид азота 4
е) оксид меди 1
1) 4P+5O2 = 2P2O5 (оксид фосфора 5 )
2) 4AL+3O2=2AL2O3 (оксид алюминия )
3) C+O2=CO2 (оксид углерода 4 )
4)S+O2=SO2 ( оксид серы 4 )
5)2Zn+O2=2ZnO ( оксид цинка 2 )
<span>Essay on the 8th of March.March 8 is a holiday for women, for example mother's or grandmother's! On March 8 you need to congratulate friends of women you mother,grandmother or aunt who you have.The best gift on March 8 candy or flowers in my opinion, the best gift on March 8 mom or aunt this gift with your own hands and nice warm words.For the grandmother or mother will be very pleased.I think that March 8 is good.</span>
<span>d) ковалентная полярная и ионная</span>