Предмет: Химия, автор: liza1758

Помогите срочно!!


Сероводородная кислота реагирует с *

1.оксидом кремния

2.фосфатом кальция

3.гидроксидом кальция

4.медью

Ответы

Автор ответа: xumukc6h6
3
Привет! Сейчас решим
Сероводородная кислота вступает в реакцию с гидроксидом кальция.
Ca(OH)2 + H2S = CaS + 2H2O
Готово! Есть вопросы? Пиши и я отвечу

liza1758: Спасибо огромноее!!
liza1758: Если не сложно: Оксид серы (IV) реагирует с *

1.сульфидом меди (II)

2.кислородом

3.углеродом
4.
хлоридом железа (II)
liza1758: Спасибо большое)
Похожие вопросы
Предмет: Английский язык, автор: Maksim36289
A. Complete the sentences with the words in the box:
1) universe
2) bright
3) telescope
4) prove
5) full
6) astronomer
7) surface
8) position

1. Sam wants to become a(n) _____ because he loves studying the stars.
2. That _______ star up there is called the North Star.
3. How can you ________ that you're telling the truth?
4. Just look at the _________ of the water and you'll see that the river is polluted.
5. Some astronomers in the past thought that the Earth was the centre of the ________.
6. Where do you think the best _________ for the sofa is?
7. I can't see those stars without a(n) ______. They're so tiny.
8. There's a(n) ________ moon out tonight.

B. Complete with a, an or the.

Alice : Have you ever seen (1) ______ shooting star?
Cindy : Yes. In fact, I saw one last night while I was looking outside (2) ____ window.
Alice Really?
Cindy : Yeah. It was fantasticl Actually, I continued looking at (3)____sky waiting to see another one, but I didn't.
Alice : Tell me something. What exactly are shooting stars?
Cindy : I don't know. Let's surf (4)____Net and find out.
Alice: Great Ideal
Olivia Are (5)____ Smiths in France?
Chloe : Yes, they're in Paris at the moment. They're staying at (6)____ hotel in (7)____ city centre. I think it's (8) ____ Hilton. It's near(9)_____ River Seine. I spoke to Emily yesterday. They're having(10) ____ amazing time.
Olivia : That's great. Are they going anywhere else this summer?
Chloe : Yes. They're visiting (11) ____ Canary Islands.
Mike : Wow! You got (12) _____ telescope for your birthday! That's (13)_____ best present.
Paul : I know. My uncle Henry bought it for me.
Mike : Henry?
Paul : Yeah.He's (14)_____ astronomer. There was (15)____article about him in (16) ____ Guardian last week.
Mikee : Cool. ​
Предмет: Математика, автор: Аноним
Предмет: Математика, автор: kivase40124