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anasteysha9999
@anasteysha9999
August 2021
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помогите с химией 10 класс
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ndambaeva
A1. 2
A2. 4
A3. 1
A4. 2
A5. 1
A6. 4
B1. A6 Б4 В5 Г3
В2. А3 Б6 В5 Г2
С1.
2CaCO3+5C=2CaC2+CO2 (t)
CaC2+2H2O=C2H2+Ca(OH)2
C2H2+H2O=CH3COH (Hg+)
С2.
51.2kg xm3
CaC2+2H2O=C2H2+Ca(OH)2
64kg 22.4m3
x=51.2kg*22.4m3/64kg=17.92m3
Vprakt=17.92*0.84=15m3
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Answers & Comments
A2. 4
A3. 1
A4. 2
A5. 1
A6. 4
B1. A6 Б4 В5 Г3
В2. А3 Б6 В5 Г2
С1.
2CaCO3+5C=2CaC2+CO2 (t)
CaC2+2H2O=C2H2+Ca(OH)2
C2H2+H2O=CH3COH (Hg+)
С2.
51.2kg xm3
CaC2+2H2O=C2H2+Ca(OH)2
64kg 22.4m3
x=51.2kg*22.4m3/64kg=17.92m3
Vprakt=17.92*0.84=15m3