Chemistry, 19.02.2021 19:30 minecraftpro64p7t123
Platinum (Pt) is in the 78th position in the periodic table. A neutral atom of the element that comes just before platinum in the periodic table haselectron and protons.
Answers: 2
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15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
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Chemistry, 23.06.2019 05:40
Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
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Chemistry, 23.06.2019 07:30
To separate a mixture of hard candies nd marbles the most efficient method would be
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Platinum (Pt) is in the 78th position in the periodic table.
A neutral atom of the element that com...
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