Homework answers and tutorials

Waiting for answer What is the molar mass of aspirin, ##C_9H_8O_4##?
Approx. ##180*g*mol^1## The molar mass of a compound is the sum of the elemental molar masses. So, ##"Molar mass of "C_9H_8O_4## ##=## ##(9xx12.011+8xx1.00794+4xx15.999)*g*mol^1##...
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Waiting for answer A coin is flipped 12 times. What is the probability of getti...
##495/4096## The number of possible sequences of heads and tails in ##12## coin tosses is: ##2^12 = 4096## The number of ways that such a sequence could contain exactly ##8## hea...
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Waiting for answer When sodium metal is dissolved in liquid ammonia a blue solu...
The redox chemistry of sodium in liquid ammonia is fairly complex. Solvated electrons form (to give the blue colour). As more metal is added the electrons COUPLE to form bronzes, reducing conductivity....
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Waiting for answer What the main structural difference between a monosaccharide...
Hi! These are all , which vary in structural complexity. Specifically, they differ in how many monomers comprise the overall structure of the molecule. Monosaccharides are the monom...
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Waiting for answer Acceleration due to gravity on Mars is about one—third that...
The ball would travel 3 times as high. The equation for finding the displacement (vertical height in this case) of an object with a constant is: ##v^2 = u^2 2as## where ##s## i...
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Waiting for answer What is seasonal unemployment?
Seasonal unemployment happens when people are unemployed at certain times of the year, because their industries dont needed them all year round. For example in Greece people are needed in hotels,restaurants, during the summer time.After the summer period they are unemployed.
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Waiting for answer How many turning points can a cubic function have?
Any polynomial of degree ##n## can have a minimum of zero turning points and a maximum of ##n1##. However, this depends on the kind of turning point. Sometimes, "turning point" is defined as "local maximum or minimum only". In this case: Polynomials of odd degree have an even number of turning po...
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Waiting for answer What is an example of mutualism?
A mutualistic relationship is when two organisms of different "work together," each benefiting from the relationship. One example of a mutualistic relationship is that of the oxpecker (a kind of bird) and the rhinoceros or zebra
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Waiting for answer How can i calculate voltage drop in a parallel circuit?
In a parallel circuit, the voltage across two components in parallel are identical and equivalent, although the currents flowing through them is different as it is determined by the resistance of each branch, in accordance with Ohms Law. ##V=I*R##. You can calculate this by the formula above, meas...
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Waiting for answer How do you convert 0.15 (15 being repeated) to a fraction?
##5/33## We first let 0.15 (15 being repeated) be ##x##. Since ##x## is recurring in 2 decimal places, we multiply it by 100. ##100x = 15.15## Next, we subtract them. ##100x ...
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Waiting for answer What is the definition of Manifest Destiny?
America is destined by God to spread west Manifest destiny is the idea that the United states of America were destined to move west continually and expand. The idea was generated in...
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Waiting for answer What was the result of the Battle of El Alamein?
1st Battle of El Alameinthe advance of the forces of the Axis were stopped in Africa. In the 2nd Battle, the GermanItalian forces in Africa suffered such losses that they lost the offensive capacity...
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Waiting for answer What is macroeconomics?
Macroeconomics is the study of largescale economic systems. It is a branch of economics that focuses on the general features and processes that make up a national economy and the wa...
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Waiting for answer What is the chemical formula of gold?
The chemical formula of all metals is just symbol. The chemical formula of gold is Au, its chemical (PT) symbol.
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Waiting for answer What do mosses use their rhizoids for?
Rhizoids of mosses are analogous to roots of higher plants. Rhizoids help in anchoring, also absorbs water.
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Waiting for answer What is a Facile reaction?
Facile reactions involve the synthesis of complex molecules or devices consisting of these molecules through simple reaction pathways, requiring minimal effort at times. It is actually just a fancy term scientists use to market their research in the place of words like easy or simple. Facile rea...
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Waiting for answer How are corresponding angles of similar figures related?
The angles of similar figures are equal. That is what gives them the same shape. The sides of similar figures are in equal ratios. When two shapes are similar, it means that their an...
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Waiting for answer What is a biome?
Biomes are climatically and geographically defined as contiguous areas with similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms. Biomes are also very large ecological areas on the earth’s surface, with fauna and flora (animals and plants) adapting...
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Waiting for answer What is the square root of 180 simplified in radical form?
##sqrt(180)## = ##sqrt(36)## x ##sqrt(5)## = 6##sqrt(5)##
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Waiting for answer In what year did the Pilgrims land in Plymouth, Massachusett...
1620 I believe. Here is where I found the answer. If you aren't sure, just look up "when did pilgrims land in Plymouth?"
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