A、强酸pH<5
B、强酸pH=5
C、强酸pH>5
D、强酸pH>6
A、low specific heat B、corrosive action C、high expense D、acid property
A、A.good lubrication B、B.low thermal stress C、C.good mechanical properties D、D.acid corrosion
A、acid B、alkali C、salt D、None of the above
A、hydrogen chloride B、calcium chloride C、sulfuric acid D、muriatic acid
A、A.hydrogen chloride B、B.calcium chloride C、C.sulfuric acid D、D.muriatic acid
A、Phosgene B、Basic(high pH) C、Ammonia(NH3) D、Lodine
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