Chemistry, 20.08.2020 18:01 robertbyrd2017
Indica que tipo de reacción es cada una, escribe el nombre que le corresponde a cada una. 1.Mg + H2SO4 → MgSO4 + H2 2. 2 KI + Pb(NO3)2 → PbI2 + 2 KNO3 3. 2 Zn + O2 → 2 ZnO 4. Zn + CuSO4 → ZnSO4 + Cu 5. Na2CrO4 + 2 AgNO3 → Ag2CrO4 + 2 NaNO3 6. H2O → 2 H2 + O2 7. SO3 + H2O → H2SO4 8. HCl + NaOH → NaCl + H2O 9. Cl2 + 2 KBr → 2 KCl + Br2 10. CaCO3 → CaO + CO2
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Chemistry, 22.06.2019 16:10
Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
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Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 22.06.2019 19:00
Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
Answers: 1
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.
Answers: 2
Indica que tipo de reacción es cada una, escribe el nombre que le corresponde a cada una. 1.Mg + H2S...
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