Chemistry, 12.02.2020 22:48 oliviacolaizzi
What salt is produced in each of the following neutralization reactions? HNO3(aq)+KOH(aq)āH2O(l)+? HNO3(aq)+Ca(OH)2(aq)āH2O(l)+? HCl(aq)+Ca(OH)2(aq)āH2O(l)+? HCl(aq)+KOH(aq)āH2O(l)+?
Answers: 3
Chemistry, 21.06.2019 18:30
Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.
Answers: 3
Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 03:30
Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4Äā10Ć¢ā20 l previous answers correct significant figures feedback: your answer 1.3824Ć¢ā¹ā¦10Ć¢ā20 = 1.382Äā10Ć¢ā20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?
Answers: 3
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + Ā½o2(g) ā mgo(s) + 146 kcal/mole h2(g) + Ā½o2(g) ā h2o(g), Ī“h = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
What salt is produced in each of the following neutralization reactions? HNO3(aq)+KOH(aq)āH2O(l)+? H...
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