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phoenix-elementa reblogged
benainouna (62)in StemSocial • 3 years ago
Chemistry of water -Part 12-
Water analysis: To reach correct analytical results, and obtain accurate values, we must be very careful during the sampling process because it is a very important and…
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phoenix-elementa reblogged
benainouna (62)in StemSocial • 3 years ago
Chemistry of water -Part 11-
Despite the fact that water covers 72 percent of the Earth's surface, the proportion of potable water does not reach 3.5 percent of the total water reserve. The world has…
$5.36
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- Author $2.71
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