Homework answers and tutorials

Waiting for answer How do you solve for r in ##d=rt##?
d divided by t = r This is because when you are backtracking like this you do 'inverted operations' for example + is  and X is / (division) and Vise Versa. Hope this helped :))
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Waiting for answer How can I write the Lewis dot structure for MgCl2?
The Lewis Dot Structure of ##MgCl_2## is ClMgCl. The Magnesium has 2 electrons shared with each Chlorine; and each Chlorine has 6 free electrons to fill the octet. If you need more help with lewis dot sturctures, I would recommend watching these video:
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Waiting for answer How do you calculate surface area to volume ratio of a cylin...
Here are the formulas you'll need: Surface area: ##2πrh+2πr^2## Volume: ##πr^2h## r is the radius of the cylinder and h is its height. So for example, let's say you had a cylinder that had a radius of 3 cm and a height of 6 cm. For surface area, you would calculate: ##2π(3)(6)+2π(3)^2##, whi...
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Waiting for answer What are the 4 chambers of the heart?
The right atrium, the left atrium, the right ventricle and the left ventricle. The inside of the heart is divided into four chambers that receive blood from various parts of the bod...
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Waiting for answer When are roman numerals used when naming compounds?
The Roman numerals are used to show the oxidation number of transition metals because some elements have more than one possible oxidation state . Some metals have the ability to for...
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Waiting for answer What is HH blood type?
Perhaps you mean the hh blood type. The hh blood type is the rarest blood type which does not express the H antigen present on virtually all RBCs as the building block for other antigens....
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Waiting for answer How do you convert 0.25 cg/mL to g/L?
So you have ##.25 (cg)/(mL)  g/L## ##.25 (cancel(cg))/(cancel(mL))@(1g)/(100cancel(cg))@(1000cancel(mL))/(1L)= 2.5 g/L##
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Waiting for answer How do biotic and abiotic factors influence an ecosystem?
Every Biotic and Abiotic factor effects or causes a change in the environment. When a living organism interacts with the environment, this causes a change in the environment. Thus,...
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Waiting for answer What is unrestricted submarine warfare?
Unrestricted submarine warfare was the use of submarines to sink other ships without giving them a warning about their attack. https://en.wikipedia.org/wiki/Unrestricted_submarine_wa...
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Waiting for answer How many degrees are in a triangle?
All of them add up to 180 degrees. In all triangles, no matter on the size of the angle, they will all add up to 180 degrees if drawn accurately.
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Waiting for answer What is the normal pH of the vaginal canal?
pH of adult normal woman is between 3.54.5 Vaginal epithelium is stratified. Vaginal mucus secretes glycogen. Lactobacillus in vagina breaks down glycogen to lactic acid. Lactic...
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Waiting for answer How do you find the LcD of the fractions with the following...
##LCD=90## To find the LCD, I like to first do a prime factorizations: ##30=2xx15=2xx3xx5## ##18=2xx9=color(white)(0)2xx3xx3## ##15=color(white)(000000000)3xx5## The LCD will have...
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Waiting for answer How does uniform linear motion differ from uniform circular...
Uniform linear motion is motion with a constant velocity (zero acceleration) and uniform circular motion is motion with constant speed and constant centripetal acceleration (non zero)....
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Waiting for answer A state of dynamic equilibrium, ##Ag_2CO_(3(s)) rightlefthar...
Here's what's going on here. The idea here is that silver carbonate, ##"Ag"_2"CO"_3##, is insoluble in aqueous solution, which is why a ** is established between the solid and the...
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Waiting for answer What happens to a spring's force if you stretch it more?
You may stretch or compress a spring beyond a certain point that its deformation will occur. On subsequent release of the stress, the spring will return to a permanently deformed shape....
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Waiting for answer How do the body planes divide the body?
The Saggital Plane divides the body into left and right, The Coronal Plane divides Anterior (front) and Posterior (back). The Transverse Plane divides Superior (top) and Inferior (bottom)....
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Waiting for answer How do you give a value of c that satisfies the conclusion o...
The conclusion of the Mean Value Theorem says that there is a number ##c## in the interval ##(1, 3)## such that: ##f'(c)=(f(3)f(1))/(31)## To find (or try to find) ##c##, set up this equation and solve for ##c##. If there's more than one ##c## make sure you get the one (or more) in the interval #...
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Waiting for answer What is the difference between biodiversity and genetic dive...
Biodiversity is the number of species in an ecosystem. Genetic diversity is the variation of genes within a species or a population. Biodiversity is the number of species in an ecos...
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Waiting for answer What is a kidfriendly definition of metonymy?
Metonymy is using a quality, attribute, or something associated to describe a reality. The best way to explain metonymy to children would be through examples. Some examples: We're...
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Waiting for answer How does electronegativity change going down and across the...
Down a group, the electronegativity decreases . Across a period, it increases . Down A Group • As you move down a group, the number of energy levels increases. The valence e canno...
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