Предмет: Химия, автор: vladmar2018

На яку речовину необхідно подіяти розчином лугу, щоб добути алюміній гідроксид?
A)алюміній оксид
Б)алюміній ортофосфат
В)алюміній нітрат
Г)алюміній гідроксид

Ответы

Автор ответа: kudrkudr5
5

Ответ:

в) Алюміній нітрат.

Объяснение:

Гідроксид алюмінію утворюється при дії лугу на розчин солей алюмінію у вигляді драглистого осаду:

AlCl 3 + 3NaOH → Al(OH) 3 ↓ + 3NaCl

При обережному просушуванні Al(OH) 3 можна одержати в сухому стані. При сильному прожарюванні він розкладається:

2Al(OH) 3 → Al 2 O 3 + 3H 2 O

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Употребите следующие предложения в отрицательной и вопросительной форме

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Past Continuous Tense поставьтеглаголы, данныевскобках, в Past Continuous

 

 

 
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