Đáp án:
Ca(H2PO4)2 + 2 Ca(OH)2 → Ca3(PO4)2 + 4 H2O
Giải thích các bước giải:
Ca(H2PO4)2 + 2Ca(OH)2 -> Ca3(PO4)2 + 4H20
Giải giúp mình câu b,d hàng trên và câu b hàng dưới ạ Tìm giới hạn của dãy số
Ai giúp e vs hứa vote 5*+cảm ơn ạ!
Vẽ anime/chibi sock Nl: Ad đi đào mộ một câu hỏi từ 2020 của tui kìa :v
Nhớ giải thích My home village has had .... since 1990 ( electric)
Ca(OH)2 + NH4NO3 -> NH3 +Ca(NO3)2 +H2O Cân bằng giúp em ạ
Làm giúp mk bài chia động từ nha lí thuyết ở trên r
Ex4 Read the passage and answer the questions below. I was born in Hanoi, the capital of Viet Nam. Hanoi is famous for its natural beauty, with lots of rivers and lakes. There are many historical places to visit in Hanoi. The Literature Temple (Van Mieu – Quoc Tu Giam) is the country’s first ever historical university. Teenagers often come here to pray for high results in their upcoming examinations. As Viet Nam is a Buddhism-oriented nation, its capital has also been the centre of Buddhism for centuries. In Hanoi alone, there are about 600 temples and pagodas. It also has a big church in the city centre, a popular place for the few Christians living here. With a population of nearly eight million, the city is quite crowded. However, the public transportation is not adequate, so visitors find it hard to safely cross the roads. The city is packed with universities and enterprises, making it the top destination for higher education students and labour workers. Many people from rural areas reside in Hanoi so that they can get well-paid jobs. This makes the city become more crowded than ever before. 1. What is the passage about? _____________________________________________________________ 2. What does ‘pray for’ means? _____________________________________________________________ 3. What is the most popular religion in Hanoi? _____________________________________________________________ 4. What does ‘adequate’ mean? _____________________________________________________________ 5. What is the city packed with? _____________________________________________________________
Đề bài tính tổng 5+10+15+20...+105
Em đang thi mọi người giúp e với ạ
Vẽ đậu mầm chán NL : Chưa nghĩ ra linh vật hoidap
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