標題:
F.2 I.S Question! Teach me!
發問:
Fill in the blank(s).Salt is a product of neutralization. It can be obtained by ________ after an acid completely neutralizes an alkali. Long questionsWhen we dilute a concentrated alkali, the safest method is adding water to it. Is it true?Suggest a way to obtain table salt other than... 顯示更多 Fill in the blank(s). Salt is a product of neutralization. It can be obtained by ________ after an acid completely neutralizes an alkali. Long questions When we dilute a concentrated alkali, the safest method is adding water to it. Is it true? Suggest a way to obtain table salt other than neutralization. ( i think it is not dry the sea water, i don't know , please explain it to me) Why must the instrutions on how to dilute the chemical should be given on the bottle of housenold chemical's label? Why household clensers are usually sold in concented packs? Explain. 更新: Please teach me! Please Please
最佳解答:
Fill in the blank(s). Salt is a product of neutralization. It can be obtained by __evaporation__ after an acid completely neutralizes an alkali. Long questions When we dilute a concentrated alkali, the safest method is adding water to it. Is it true? False. adding water to it wil cause splashing of the liquid. The saferst method is adding the conc. alkali to a large amount of water. Suggest a way to obtain table salt other than neutralization. ( i think it is not dry the sea water, i don't know , please explain it to me) Buy from super market./Obtain by evaporation of seawater.(you're right) Why must the instrutions on how to dilute the chemical should be given on the bottle of housenold chemical's label? To prevent someone do not know how to dilute.(may be....) Why household clensers are usually sold in concented packs? Explain. This may reduce the size of the packs.
F.2 I.S Question! Teach me!
發問:
Fill in the blank(s).Salt is a product of neutralization. It can be obtained by ________ after an acid completely neutralizes an alkali. Long questionsWhen we dilute a concentrated alkali, the safest method is adding water to it. Is it true?Suggest a way to obtain table salt other than... 顯示更多 Fill in the blank(s). Salt is a product of neutralization. It can be obtained by ________ after an acid completely neutralizes an alkali. Long questions When we dilute a concentrated alkali, the safest method is adding water to it. Is it true? Suggest a way to obtain table salt other than neutralization. ( i think it is not dry the sea water, i don't know , please explain it to me) Why must the instrutions on how to dilute the chemical should be given on the bottle of housenold chemical's label? Why household clensers are usually sold in concented packs? Explain. 更新: Please teach me! Please Please
最佳解答:
Fill in the blank(s). Salt is a product of neutralization. It can be obtained by __evaporation__ after an acid completely neutralizes an alkali. Long questions When we dilute a concentrated alkali, the safest method is adding water to it. Is it true? False. adding water to it wil cause splashing of the liquid. The saferst method is adding the conc. alkali to a large amount of water. Suggest a way to obtain table salt other than neutralization. ( i think it is not dry the sea water, i don't know , please explain it to me) Buy from super market./Obtain by evaporation of seawater.(you're right) Why must the instrutions on how to dilute the chemical should be given on the bottle of housenold chemical's label? To prevent someone do not know how to dilute.(may be....) Why household clensers are usually sold in concented packs? Explain. This may reduce the size of the packs.
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