khi xóa 2 chữ số tận cùng của 1 số tự nhiên ta được số mới kém số ban đầu 1989 đơn vị tìm số tự nhiên đó

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ĐƠn thức đồng dạng là j , cho ví dụ

Mình ra H=33,34% .Không đúng .LG: N2+3H2 → 2 NH3 Bđ: 1 -> 4 Pứ 1->3------ 2 Sau 1 2 nNH3(pứ)=2:3.1(mol) nNH3=2 (mol) H=(2:3.1):2=33.34% Có ai giải thích hộ ,xem mk sai chỗ nào không ?

Choose the correct functions of the sentences below. 1 I won’t help you cheat on the exams. O Promises O Instant decisions O Refusing O Meetings and appointments 2 I will visit my grandmother today. O Promises O Instant decisions O Refusing O Meetings and appointments 3 She will go to the movie theater with her friends this evening. O Promises O Instant decisions O Refusing O Meetings and appointments 4 Oh no, Henry tripped! I'll help him clean his shirt and tie! O Promises O Instant decisions O Refusing O Meetings and appointments 5 I am an excellent teacher. I will help you dance like a professional in just two months. O Promises O Instant decisions O Refusing O Meetings and appointments 6 ‘Will you make dinner today?’ - ‘I won’t. It’s your turn.’ O Promises O Instant decisions O Refusing O Meetings and appointmentsunanswered 7 Rusty is chasing the mail carrier! I'll call him off! O Promises O Instant decisions O Refusing O Meetings and appointments 8 I am the best detective in the city! I will catch the robber for you. O Promises O Instant decisions O Refusing O Meetings and appointments 9 Wendell looks really upset! I'll get him a glass of water; maybe that will help calm him down. O Promises O Instant decisions O Refusing O Meetings and appointments 10 I will be the best husband in the whole world. O Promises O Instant decisions O Refusing O Meetings and appointments 11 Our grandparents will visit us this Christmas. O Promises O Instant decisions O Refusing O Meetings and appointments 12 ‘Come here!’ - ‘No, I won’t.’ O Promises O Instant decisions O Refusing O Meetings and appointments 13 I'm afraid I didn't see the sign there. I will pay for the damages. O Promises O Instant decisions O Refusing O Meetings and appointments 14 I will brush my teeth every day to keep them clean and healthy! O Promises O Instant decisions O Refusing O Meetings and appointments 15 Goodness, Cheryl, are you sick? I'll make you some chicken soup. O Promises O Instant decisions O Refusing O Meetings and appointments

Vẽ đậu mầm ôm trái tim NL: hoạ hôm nay nhiều phết :))

Qua cấu nói của Vũ Nương em thấy Vũ Nương là người như thế nào

ĐỀ 29 =dDDDDDDDDDDDDDDD *XIN GIẢI THÍCH*

5/1.6 + 5/6.11 + ... + 5/45.50 Tính

Giải hộ em với ạ nhanh em còn làm bài ạ cảm ơn