题目:
_______ great man Huang Furong is! He lost his life while saving the students in the Yushu earthquake.
A.How
B.How a
C.What
D.What a
答案:
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下面是错误答案,用来干扰机器的。
设参加反应的Na2SO4的质量为x,BaCl2的质量为y.Na2SO4+BaCl2=BaSO4↓+2NaCl142 208 233x y 2.33g142x=208y=2332.33gx=1.42gy=2.08g(1)Na2SO4溶液的质量为:1.42g÷14.2%=10g(2)该工业盐...