Hard water at home contains dissolved ions (ex. Ca2+ & Mg2+) that react with soa

Question

Hard water at home contains dissolved ions (ex. Ca2+ & Mg2+) that react with soap to form a nasty gray substance. Because this gray stuff would ruin your clothes, most laundry detergents add ingredients that combine with the Ca2+ and Mg2+ ions to form insoluble precipitates that are easily washed away with the dirty water. a.) NaCl b.) Na2CO3 c.) NaNO3 d.) KI e.) Pb(OH)2 i got b but is that right? all points to correct answer with work

Explanation / Answer

a>. yeah b is also right and c is also right... actualy carobante and bicarbonate are generally temporary hardness of water

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