Homework answers and tutorials

Waiting for answer How do you write 4 1/5 as a percent?
First, convert the mixed fraction to decimal, then multiply by ##100## to get ##420%## To write this value as a percentage, we first need to convert the mixed fraction to a decimal....
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Waiting for answer What would be the product of 1bromopropane with Mg in dieth...
##CH_3CH_2CH_2MgBr##. The product is called Grignard reagent and the formula is ##CH_3CH_2CH_2MgBr##. Grignard reagents are very useful precursors in synthetic organic chemistry, s...
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Waiting for answer Why is there deadweight loss with monopolistic competition?
Monopolistic competition creates a DWL because firms have market power. Like a monopoly, firms in monopolistic competition have market power. That is, they are price searchers or pri...
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Waiting for answer What are the steps of glycolysis?
WARNING. This is a VERY LONG answer because there are 10 steps to glycolysis. Step 1. Phosphorylation of Glucose ##underbrace("C"_6"H"_12"O"_6)_color(red)("glucose") + "ATP" stack...
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Waiting for answer Factor completely: 4x^2100
x = +5, 5 It is both plus and negative 5 because if either of those numbers is squared, the answer is 25. To factor the equation ##4x^2  100 ## 1) Figure out what method or way cou...
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Waiting for answer How does water density affect life?
Density of ice is less than the density of water. Therefore lakes freeze top down in the winter. Ice floats because it is less dense than water. Therefore, during the cold season, a...
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Waiting for answer What does it mean to be enantiomerically pure?
A sample that contains only a single enantiomer is enantiomerically pure. For example, the specific rotation of (+)tartaric acid is +12.7 °. The specific rotation of its enantiome...
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Waiting for answer What is the standard form of the equation of a circle with e...
the standard form formula is ##(xh)^2 + (yk)^2 = r^2 ## therefore .. ##(x1)^2 + (y7)^2 = (2sqrt37)^2 ## ##(x1)^2 + (y7)^2 = 148 ## to be able to find the of a circle we need...
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Waiting for answer What is the frequency of a light source that has a wavelengt...
##nu=3.71xx10^(14)s^(1)## ##E=2.46xx10^(19)J## The relationship between the wavelength ##lambda## and the frequency ##nu## is the following: ##lambda=c/(nu)## where ##c## is th...
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Waiting for answer What is the difference between a nucleotide and nucleic acid...
are made of nucleotides. Nucleotides are the monomers that make up a nucleic acid, such as DNA or RNA. Nucleic acids are made of long strands of nucleotides and are an essential pa...
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Waiting for answer A 12.0 g rubber bullet travels at a velocity of 150 m/s, hit...
Use the to answer this question. Calculate the total momentum before the collision. momentum of bullet = mass x velocity = 0.012 x 150 = 1.8 N.s (note the mass of the bullet is in grams) momentum of block = mass x velocity = 8.5 x 0 = 0 N.s total momentum = 1.8 + 0 = 1,8 N.s Then find the total...
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Waiting for answer What fraction is between 1/8 and 1/4?
##3/16## ##1/8 = 2/16## ##1/4 = 4/16## Therefore the fraction in between is ##3/16##
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Waiting for answer Is O Negative a rare blood type?
O negative blood group is definitely rare, about 5 to 7% people of this world have the blood type; but AB negative group is rarest, not more than 1% people have the blood type in the world.
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Waiting for answer The individual BF bond are polar but still BF3 is a nonpolar...
The molecular geometry of BF3 is trigonal planar with symmetric charge distribution on the central atom. Therefore BF3 is nonpolar. Or in less fancy words, the BF3 molecule has all i...
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Waiting for answer With which group of elements is magnesium most reactive?
Magnesium is most reactive with in Group 6 Reactivity is determined by the number of an element has. When you look at Magnesium on , you see that it is in the 2nd column, and ther...
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Waiting for answer Inert gases have zero valency why?
Because generally they do not form chemical . Traditionally, valence was defined as the number of hydrogen atoms that could bond to a particular element. Inert gases tend to form...
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Waiting for answer 60 is 20% of what number?
300 ##20%## means ##20/100## right? Now suppose the number is ##x##. According to the question, ##20%## of ##x## is ##60## so, ##20/100## multiplied by ##x =60##. ##0.2*x =60## ##...
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Waiting for answer What are the two types of bone tissue? How do they differ i...
There are two types of bony tissue: compact and spongy. Both are with solid bony matrix secreted by osteoblast cells but arrangement of bony tissue with respect to space occupying matrix is different....
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Waiting for answer What is the difference between a disjunctive fallacy and a f...
The difference in these two logical fallacies is that DF is looking to make an option false while FD is trying make an option true. I've moved the question to Psychology from Englis...
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Waiting for answer When do i put the apostrophe, after and before the S? I know...
See explanation. The possesive form depends on the noun you want to change into a possesive form. If the noun does not end with s then you add 's (apstrophe s): dog  dog's boy  b...
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