Chemistry, 03.03.2021 21:40 TrueKing184
How do scientists determine whether a chemical reaction releases or stores energy? Scientists can calculate the bond energies of the reactants and the products. products. Scientists compare the total bond energies of the reactants and the products. products. Scientists know that each chemical has its own unique bond energy. energy. All of the above above
Answers: 1
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 = 1.4ฤโ10รขโ20 l previous answers correct significant figures feedback: your answer 1.3824รขโนโฆ10รขโ20 = 1.382ฤโ10รขโ20 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 11:00
Imagine that twenty i.u.โs of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?
Answers: 2
Chemistry, 22.06.2019 14:50
The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 3
Chemistry, 22.06.2019 15:10
The ozone molecule o3 has a permanent dipole moment of 1.8ร10โ30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5ร10โ10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?
Answers: 2
How do scientists determine whether a chemical reaction releases or stores energy? Scientists can ca...
SAT, 08.12.2021 17:30
Biology, 08.12.2021 17:30
Biology, 08.12.2021 17:30
Computers and Technology, 08.12.2021 17:30
Computers and Technology, 08.12.2021 17:30
Social Studies, 08.12.2021 17:30
Mathematics, 08.12.2021 17:30
English, 08.12.2021 17:30
Mathematics, 08.12.2021 17:30
English, 08.12.2021 17:30
Mathematics, 08.12.2021 17:30