What does temporary hardness of water refer to?
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This post was last edited by 3FCCtaofeng on 2015-6-21 at 16:44. Daily question for the activity (single-choice question): The temporary hardness of water refers to the content of calcium and magnesium ( ) in water. A. Sulfates B. Carbonates C. Chlorides D. Bicarbonates Answer: D, Bicarbonates. Please participate actively to win prizes. +5 points for correct answers, +2 points for participation. One time per person only. Close this topic in two days.
The temporary hardness of water refers to the ( ) content of calcium and magnesium in the water. A. Sulfates: The total hardness of water refers to the total concentration of calcium and magnesium ions in the water. This includes carbonate hardness (i.e., the calcium and magnesium ions that can be precipitated in carbonate form upon heating; hence it is also called temporary hardness) and non-carbonate hardness (i.e., those calcium and magnesium ions that cannot be precipitated after heating; also known as permanent hardness).
The temporary hardness of water refers to the content of calcium and magnesium (B) in the water. A. Sulfates B. Carbonates C. Chlorides D. Bicarbonates
It should be D, bicarbonate, right?
The temporary hardness of water refers to the content of (D) of calcium and magnesium in the water. A. Sulfates B. Carbonates C. Chlorides D. Bicarbonates
The temporary hardness of water refers to the ( B ) content of calcium and magnesium in the water.