Homework answers and tutorials

Waiting for answer How does a zygote differ from a gamete?
Gametes are haploid ( half the number of an individual's chromosome ) structures . For eg . In human beings , total no. of chromosomes are 46 while gametes of the same have 23 chromosomes. Gametes are structures of prefertilization event . Gametes fuse to form zygote Fusion of gametes is call...
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Waiting for answer How can I write the formula for aluminum chloride?
Aluminum Chloride has a formula of ##AlCl_3##. Aluminum typically is a cation and has an charge of ##Al^(+3)##. Chlorine typically is an anion and has a charge ##Cl^(1)##. In order to bond ionically the charges must be equal and opposite. It will take three 1 chloride ions to balance one +3 alu...
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Waiting for answer What is the domain of the function ##f(x)=sqrt(6  2x)##?
In this case you do not want a negative argument for the square root (you cannot find the solution of a negative square root, at least as a real number). What you do it is to "impose" that the argument is always positive or zero (you know the square root of a positive number or zero). So you set t...
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Waiting for answer A) How to calculate the theoretical yield of water resulting...
Once again, start with the balanced chemical equation for the combustion of methane, ##CH_4## ##CH_4 + 2O_2  CO_2 + 2H_2O## You have a ##"1:2"## between methane and water  this means that the number of moles of water produced must be twice the number of moles of methen that reacted. The theor...
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Waiting for answer How does pH affect the Nernst equation?
doesn't affect the Nernst equation. But the Nernst equation predicts the cell potential of reactions that depend on pH. If H⁺ is involved in the cell reaction, then the value of ##E## will depend on the pH. For the halfreaction, 2H⁺ + 2e⁻ → H₂, ##E^°## = 0 According to the Nernst equation, #...
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Waiting for answer A friend tells you he read somewhere that rotting garbage ca...
Maggots will not form out of organic waste on their own. Its a variable dependent on fly, laying eggs on the garbage. A friend from US instructed me that this is Biology experiment o...
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Waiting for answer How do you find the Least common multiple of 20, 30?
##lcm(20,30)=60## multiples of 20:##" "{20,40,60,80,100,120,140,160,180..}## multiples of 30:##" "{30,60,90,120,150,180,...}## common multiples;##" "{60,120,180...}## ##lcm(20,30)...
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Waiting for answer What are the forms in which carbon is found in the oceans?
There are two main forms of Carbon in the ocean. The Carbonates that make up the bulk of corals and sea shells and dissolved Carbon Dioxide. Organisms in the ocean take Carbon Dioxi...
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Waiting for answer How do you find the y coordinate of the vertex of a parabola...
The ycoordinate of the vertex of a parabola in ##y=ax^2 + bx + c## is ##k = (4ac  b^2)/(4a)## explanation: The vertex of a parabola, written in ##y= ax^2 + bx + c## , denoted by the ordered pair ( h, k ) in which h is the xcoordinate and k is the ycoordinate is obtained using the formulas bel...
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Waiting for answer How can potential energy be increased and decreased?
By changing the object's position. There are several forms of potential . 1) An object with mass will have potential energy by placing it in a gravitational field (like the gravita...
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Waiting for answer How many galaxies are there in the universe?
10^11 it is believed that there are about 10^11 galaxies in the universe containing 10^11 stars (in each galaxy). But that's really an estimate of number of galaxies and stars they m...
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Waiting for answer What is the difference between simple and compound machines?
can not be broken down into smaller or simpler machines/parts. A compound machines is a machine made up of simple machines Compound machines are by definition a compounding or addin...
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Waiting for answer How do you find (f o g)(x) and its domain, (g o f)(x) and it...
Given ##color(white)("XXX")f(color(blue)(x))=color(blue)(x)^21## and ##color(white)("XXX")g(color(red)(x))=color(red)(x)+1## Note that ##(f@g)(x)## can be written ##f(g(x))## and that ##(g@f)(x)## can be written ##g(f(x))## ##(f@g)(x) = f(color(blue)(g(x))) = color(blue)(g(x))^21## ##color(whit...
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Waiting for answer An irregularly shaped stone was lowered into a gradulated cy...
The of the stone is ##"5.0 g/cm"^3##. The volume of the stone is the difference between the second volume of the water and the first volume. ##"Volume"_"stone"="7.0 mL""2.0 mL=5.0...
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Waiting for answer What is the structure and function of the cytoskeleton in a...
is the name given to the skeleton of the cell. The cytoskeleton gives a cell it's shape and holds it together(and the organelles in it), just like the skeleton in your body holds you in shape. Without it, you would just be a pile of mush; so would be the cell. Unlike the illustrations in many textb...
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Waiting for answer What is a polynomial function for 5, i, i?
##f(x)=x^35x^2+x5## I have assumed that ##{5,i,i}## are intended to be the of the function. In this case, the function can be factored as: ##color(white)("XXX")(x5)((xi)(x+i)#...
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Waiting for answer What are the customary units of solubility on solubility cur...
The customary units are g/100g In this example the solvent is water.
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Waiting for answer How did the trial of John Peter Zenger become important to t...
It established the precedent for freedom of the press in the colonies. Under British law, a publication could be sued for defamation even if what was published was true. In the Unit...
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Waiting for answer What is the meaning of constant of proportionality in physic...
Constant of proportionality basically comes from mathematics. In Physics and other branches of Science or Subjects it is applied and used to describe variables. If change in one variable is always accompanied by a change in another variable, and if the changes between the two are always related by...
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