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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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K Na Ba Ca Mg Al Zn Fe H Cu Ag<br />

2.<br />

2MCl a + aH 2<br />

VD1:<br />

2<br />

= m + m<br />

n n 2n<br />

X<br />

HX H 2<br />

n<br />

H2<br />

448.10<br />

22, 4<br />

3<br />

2MCl a + aH 2<br />

0,02 (mol).<br />

2 2 0,04<br />

n n<br />

M H 2<br />

.0,02 (mol).<br />

a a a<br />

Ta có:<br />

m<br />

M<br />

1,3 (gam)<br />

0,04<br />

n (mol)<br />

M<br />

a<br />

m<br />

M<br />

M 32,5a<br />

M<br />

nM<br />

M theo a ta có<br />

a 1 2 3<br />

M M 32,5 65 97,5<br />

M<br />

Zn<br />

1<br />

141

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