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Chemistry, 09.08.2021 04:30 llama1314

cho 3,8g hỗn hợp na2co3 và nahco3 tác dụng với dung dịch hcl. Thoát ra 896 khí ở đktc a/ tính thành phần % theo khối lượng mỗi muối trong hỗn hợp đều. b/ tính thể tích dung dịch hcl 20% biết d= 1,1g trên ml​

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cho 3,8g hỗn hợp na2co3 và nahco3 tác dụng với dung dịch hcl. Thoát ra 896 khí ở đktc a/ tính thành...

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