查阅如图溶解度曲线.80℃时硝酸钠的溶解度是( )
A.200g
B.150g
C.96g
D.67g
根据固体物质的溶解度曲线可知:80℃时硝酸钠的溶解度是150g.
故选:B.
I found her sitting in the corner, reading _____ newspaper, with _____ in her eyes.
A.a, tear
B.a piece of, tears
C.a, tears
D.a piece of, tear
计算题:渣量为13%,渣中FeO含量为11%,Fe2O3含量为2%,试计算每吨钢渣中铁氧化损失多少?