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Q5: At equilibrium, the concentrations of reactants and
Q19: Diamond<br>A)heterogeneous mixture<br>B)element<br>C)homogeneous mixture<br>D)compound
Q26: sulfuric acid<br>A)weak acid<br>B)strong acid
Q35: 25 mL of a 0.1 M NaCl
Q57: 40Ar, 40K and 40Ca are isotopes.
Q68: Which of the following compounds could be
Q96: The spherical structure of a soap molecule
Q131: nitrogen dioxide<br>A)+3<br>B)+5<br>C)0<br>D)+4<br>E)+2<br>F)-3
Q136: It is not possible to make a
Q144: A concentrated solution of a non-electrolyte such