Chemistry, 01.01.2020 21:31 ellenharley7
Is heat, gas production, and color change can all be evidence of chemical change
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Chemistry, 22.06.2019 21:40
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.
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Chemistry, 23.06.2019 01:30
Adirect relationship can be represented by: a curve a pie chart
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Chemistry, 23.06.2019 02:30
What role does weathering have in shaping earthโs surface? a) it allows sediments to fall out of a medium. b) it sediments settle on a new surface. c) it breaks down older material into sediments. d) it transports sediments to a different location. will give brainliest, answer quickly.
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Chemistry, 23.06.2019 08:00
Pl what kind of reaction is this? nahco3 + h2o โ co2 + naoh + h2o -composition -decomposition -single replacement -double replacement im leaning more toward single replacement. if im wrong can you explain whyy?
Answers: 1
Is heat, gas production, and color change can all be evidence of chemical change...
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