Предмет: Химия, автор: denusi2014

Написать химичиские уровнения,за вот таким планом: CaCO3 - CaO - C2H2 - C2H6

Ответы

Автор ответа: shabalinaksusha

0

1) CaCO3---t--->CaO+CO2
2) CaO+3 C = CaC2 +CO при нагревании

CaC2 +H2O ---->C2H2+ Ca(OH)2

3) C2H2 + 2H2 --> C2H6

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Химия, автор: igbalgasanov3

Помогите пожалуйста

5 лет назад

Предмет: Английский язык, автор: game0703play

8.While I…..the view, someone…..my bag.

•was admiring, was stealing
•was admiring, stole

9.Suddenly, I ___ some footsteps behind. Someone ___ me. I was frightened and ___ to run..

•heard, was following, started
•heard, followed, was starting
•was hearing, followed, started

10.She ___ more salt to the vegetables, and then they ___ much better.

•added, tasted
•were adding, were tasting
•added, were tasting
11.I ___ new sunglasses at the mall when I ___ someone shoplifting.

•was buying, saw
•bought, was seeing

5 лет назад

Предмет: Английский язык, автор: game0703play

8.While I…..the view, someone…..my bag.

•was admiring, was stealing
•was admiring, stole

9.Suddenly, I ___ some footsteps behind. Someone ___ me. I was frightened and ___ to run..

•heard, was following, started
•heard, followed, was starting
•was hearing, followed, started

10.She ___ more salt to the vegetables, and then they ___ much better.

•added, tasted
•were adding, were tasting
•added, were tasting
11.I ___ new sunglasses at the mall when I ___ someone shoplifting.

•was buying, saw
•bought, was seeing

5 лет назад

Предмет: Алгебра, автор: larnastya

6-10x=21 помогите решить, а то ума не хватает

9 лет назад

Предмет: Математика, автор: анна20035490

чему равно частное от деления числа а на число b если а=2*3*5*5*7*11*13.b=2*5*13 а=2*2*3*5*23*37.b=2*3*37 помогите пожалуйста))))

9 лет назад