A white powder,consisting of a simple mixture of tartaric acid (C4H6O6) and citric acid(C6H8O7) was analysed to determine the elemental composition.Combustion of a 310.0-mg sample produced 384.0 mg of CO2 and 113.1 mg of H2O1).Calculate the % carbon,
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powder
When _____ with water,the white powder will become green.A.mixing.B.to mix.C.mixed.D.being mixed正确答案是C,为什么不选A呢?
A powder ised to turn milk into
a white night,a white crow,white
a white
A white
a white
a white
a White
a white
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a white umbrella 还是 an white unbrella?
A white powder,consisting of a simple mixture of tartaric acid (C4H6O6) and citric acid(C6H8O7) was analysed to determine the elemental composition.Combustion of a 310.0-mg sample produced 384.0 mg of CO2 and 113.1 mg of H2O1).Calculate the % carbon,
a white lie
a white elephant是什么意思?
a white elephant