Homework answers and tutorials

Waiting for answer A notebook computer has a mass of 2.25 kilograms. About how...
##2.25 " kg" ## is almost ##5 " pounds"## You need to know the conversion factor first. ##1" Kg" = 2.205 " lbs"## So, for every Kg , there are just over 2 pounds. ##2.25 " kg" xx...
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Waiting for answer What is quantitative and qualitative data?
The term Quantitative refers to characteristics that have numeric value or a quantity. The mass of material or the temperature of a solution. This type of data is also referred to as Extensive Properties . The term Qualitative refers to characteristics of description or quality. The color of a...
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Waiting for answer Do halogens appear in the IR spectrum? For example, in a mol...
As an additional answer, if we were specifically talking about, say, ##"Br""Br"##, ##"F""F"##, etc., then no, those wouldn't show up. IRactive vibrational motions, i.e. those that change the dipole moment of the molecule, show up in an IR spectrum. So in the above diagram of ##"CO"_2##, ##B#...
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Waiting for answer What mass of KCl is in 350 mL of 0.24 M KCl?
Given and volume, convert them to mass (grams) M = moles/Liter mole = gram molecular weight/mole L x M = moles moles x molecular weight = mass 0.350L x 0.24M/L = 0.084mole 0.084 x...
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Waiting for answer The mass of Uranus is about ##8.7 times 10^22## metric tons...
Mass of Sun is ##2.297xx10^4## times mass of Uranus As the mass of the Sun is ##1.998xx10^27## metric tons and mass of Uranus is ##8.7x10^22## metric tons Mass of Sun is ##(1.998xx...
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Waiting for answer Which delegate was called the "Father of the Constitution"?
James Madison was called the "Father of the Constitution." James Madison was called the "Father of the Constitution" because he was the most prepared for the convention. He also con...
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Waiting for answer What is an inequality?
An inequality is simply an equation where (as the name implies) you don't have an equal sign. Rather, inequalities deal with more nebulous greater than/less than comparisons. Let me use a real life example to communicate this. You buy 300 chickens that you're going to cook at your restaurant ton...
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Waiting for answer What is the formal charge formula?
And . Clearly we must assign the 2 electrons from each covalent bond. These are shared between the participating atoms. The 2 electrons shared by a covalent bond are shared between the participating atoms.
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Waiting for answer What are the monomers and polymers of carbohydrates?
Monomer of = monosaccharides Polymer= (depends) disaccharide, oligosaccharide, polysaccharide Carbohydrates are one of the four basic macromolecules of life. They are a polymer made up of monomers called monosaccharides. These building blocks are simple sugars, e.g., glucose and fructose. Two mo...
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Waiting for answer What is phosphorylation and why is it important?
The covalent addition of a phosphate group to a molecule. Phosphorylation is an important mechanism by which the activity of can be altered after they are formed. A phosphate group...
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Waiting for answer What is the difference between meiosis 1 and 2?
In I, the number of the parent cell's chromosome is reduced into half while Meiosis II is undergoes division that is the same as Meiosis I is also called as Reductional Division b...
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Waiting for answer How do you find its vertex, axis of symmetry, yintercept an...
Find the axis of symmetry using the equation ##x=(b)/(2a)##. Find the vertex by substituting the value for ##x## into the equation and solving for ##y##. There are no xintercepts. To get the yintercept, substitute 0 for ##x## in the equation and solve for ##y##....
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Waiting for answer Why are prokaryotic cells important to life on earth?
"Prokaryotes are so important to the biosphere that if they were to disappear, the prospects for any other life surviving would be dim. Prokaryotes are indispensable links in the recycling of chemical elements in ecosystems. Chemoheterotrophic prokaryotes function as decomposers, breaking down cor...
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Waiting for answer What is the segment addition postulate in geometry, and how...
The segment addition postulate states that if point ##B## lies on a line segment ##AC##, then ##AB +BC = AC##. Example: Prove that XY has a length equal to 6. ##XY + YZ = XZ## (Segment addition postulate) ##XY + 11 = 17## (Substitution of values based on given) ##XY = 6##
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Waiting for answer What are some hyperboles for happy and excited?
This is a tougher one. Example: He was about to burst with excitement. A good place to look for great hyperboles would be the web.
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Waiting for answer How do you say, "You are beautiful" in Spanish?
"Eres hermosa". To a woman or girl, you say: "Tu eres hermosa". Tu  means "you" (second person singular) eres  means "are" (be verb for 2nd person singular) hermosa  be...
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Waiting for answer What is the wavelength of an electron (mass = 9.109 ×1028 g...
The wavelength ##lambda=1.12xx10^(7)"m"## ##lambda=(h)/(mv)## ##h## = Planck's Constant = ##6.636xx10^(34)"J.s"## ##m## = mass ##v## = velocity ##lambda=(6.636xx10^(34))/(9.109xx10^(31)xx6.50xx10^(3))"m"## ##lambda=1.12xx10^(7)"m"##
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Waiting for answer What are the parts of a reflex arc?
Receptor, afferent neuron, interneuron, efferent neuron and effector. A reflex arc can be considered a 'short cut' in the nervous system. It bypasses the brain for a quick response....
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Waiting for answer What perfect square goes into 150?
25 goes into 150, 6 times. How do I find that? Check the perfect squares until you find one or get past half of the number (150). 4 doesn't go evenly 9 also doesn't 16 can't because we already.know 4 doesn't go evenly 25 does go evenly ##150 =6xx25##
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