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BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

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Mg + HNO 3 Mg(NO 3 ) 2 + N 2 O + N 2 + H 2<br />

n : n 1 : 1<br />

N O<br />

N<br />

2 2<br />

5 1 0<br />

4N 18e N N<br />

0 2<br />

Mg Mg 2e<br />

2 2<br />

x 1<br />

x 9<br />

9Mg + 22HNO 3<br />

5 1 0<br />

4N 18e N N<br />

2 2<br />

0 2<br />

9Mg 9Mg 18e<br />

9Mg(NO 3 ) 2 + N 2 O + N 2 + 11H 2 O<br />

xB y .<br />

VD5: xO y + HNO 3 Fe(NO 3 ) 3 + NO + H 2 O<br />

xO y là<br />

2y<br />

x<br />

5 2<br />

N 3e N<br />

2y<br />

x<br />

Fe (3x - 2y) e xFe<br />

x<br />

3<br />

x (3x – 2y)<br />

x 3<br />

5 2<br />

(3x 2y)N 3.(3x 2y)e (3x 2y) N<br />

2y<br />

x<br />

3Fe 3. (3x - 2y) e 3xFe<br />

x<br />

3<br />

3Fe x O y + (12x –2y)HNO 3<br />

3xFe(NO 3 ) 3 + (3x – 2y)NO + (6x – y)H 2 O<br />

4<br />

65

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