CHEM-110 Chemistry and Biochemistry in our World is a two credit course that travels a long way in a short time: matter, atoms and molecules, chemical equations and stoichiometry, then organic and nuclear chemistry, then biochemistry covering macromolecules, enzymes and the flow of genetic information. Roughly 24 lecture and 16 lab contact hours, with MATH-105N as the prerequisite. The graded work splits into two kinds. One is a calculation that has to be written up, not just solved. The other is a short explanation connecting a chemical idea to something in the body. This page is the manual for both, starting with the fact that in a chemistry course the path scores higher than the answer.
What CHEM-110 actually grades
Most marks in this course attach to visible reasoning rather than to final values. A quantitative row is looking for a legible path: what you were given, what relationship you chose, how the units travelled, what came out. A correct number with no working shows nothing that can be marked, and a wrong number with a clean path usually keeps most of its marks.
The second graded skill is translation. This is chemistry taught for people heading into health work, so the writing keeps asking what a chemical fact means outside the equation: why a molecule dissolves where it does, why an enzyme stops working under some conditions, why a reaction that happens in a flask matters in a cell.
The third is care with symbols. Formulas, charges, coefficients and units are the language, and errors in them read as content errors rather than typing errors. All of this arrives weekly in Canvas inside Chamberlain's 16 week semester, split into two 8 week sessions with as many as six starts a year, and board posts cannot be edited once they publish, which is unforgiving when a post contains a formula.
How we help in this course
We build the written product: worked problem write-ups with the reasoning laid out line by line, concept explanations, lab reports assembled from the measurements you recorded, applied short answers and board posts drafted to final quality before they publish. Send the problem set or prompt with your scoring rows and the draft comes back with every unit carried through and every step justified.
Quizzes, exams and your own lab time stay yours. What we can build around them is practice material in the same format as your graded work, so the method you revise from is the method that gets marked.
Terms match the rest of this site: a premium original draft in 24 to 48 hours, targeted at the A band of your course's actual scale, through the eight-person pipeline with two QA passes and the floor check, revised free until it lands.
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Budgeting a chemistry write-up
Chemistry rubrics are often the shortest ones you will meet in the program and the most literal. Read the rows before the questions and note which of them mention process, method or explanation, because those are the rows that reward writing rather than solving. Copy them out and mark, beside each, whether it can be satisfied by numbers, by prose, or only by both together.
Then price them. Suppose a write-up is capped at 800 words with rows worth 50, 20, 20 and 10 percent. That gives roughly 400 words to the first, 160 to each of the next two and 80 to the last. Half the budget in one row is a strong hint that the row is the method, and a method row cannot be filled by a longer answer to a different row.
The pattern this exposes is the opposite of the one in essay courses. Students underwrite rather than overwrite, because a solved problem feels finished the moment the number appears. If the method row is worth 400 words and your solution occupies four lines, the arithmetic has already decided the grade. Write the reasoning between the lines: why this relationship, why this conversion, why this rounding.
Two mechanical checks. Whether calculations, tables and drawn structures count toward the word limit, since they usually do not and that changes how much room you have for explanation. And what the guide says about showing work, because some rows require every step written out and will not accept a final expression, however elegant.
The shape of a worked problem write-up
Every quantitative answer in this course fits one seven part shape. Written this way, a problem you got wrong still collects most of its marks.
| Part | What it has to show | The version that loses marks |
|---|---|---|
| What is given | Every supplied quantity listed with its unit, and any value you looked up, with the source of the lookup. | Numbers pulled into the working straight from the question text. |
| What is asked | The quantity wanted and the unit it should come out in, written before any work starts. | An answer in one unit when the question asked for another. |
| The relationship chosen | The equation or ratio you are using and one sentence saying why it fits this situation. | A formula appearing with no reason, which leaves the reasoning row empty. |
| The conversion path | Each factor written so the unwanted units visibly cancel, in the order you applied them. | A single line of arithmetic that arrives at a number by an invisible route. |
| The arithmetic | The calculation itself, unrounded until the end, with intermediate values kept in full. | Rounded intermediates that quietly move the final digit. |
| The answer | The value with its unit and the correct number of significant figures, stated as a sentence rather than as a lone number. | A bare number, which in chemistry is not an answer at all. |
| The check | One line asking whether the size and direction make sense, and what would have been wrong if it did not. | No check, so an answer off by a factor of a thousand passes unnoticed. |
Symbols, units and sources
Five conventions carry most of the marks that students lose without knowing why.
Units travel through every line. Write them beside each number in the working, not only in the answer. Watching them cancel is how you catch a flipped conversion before it costs you, and a grader reading a units-labelled path can follow your thinking without redoing it.
Round once, at the end. Keep full precision through the working and let the least precise measurement set the significant figures in the final value. Rounding at each step is the most common source of an answer that is nearly right.
Write formulas and equations properly. Subscripts, charges, coefficients and physical states are information rather than decoration, and an equation used for a quantitative answer has to be balanced before it can carry one. Balance it in a visible step so the row can see it happened.
Keep mass and amount apart. A quantity in grams and a count of particles are different things joined by a conversion, and treating them as interchangeable is the error that most often produces an answer off by a large factor.
Match your sources to the claim. Constants and standard values come from your data tables and textbook, cited as such. Anything about exposure, safety, treatment or use in health care needs a published or agency source, because that claim leaves chemistry and enters a field with its own evidence.
What separates a passing write-up from a strong one
A passing write-up gets the answers right and shows enough work that a generous reader can follow it. It scores in the middle because the reader had to do part of the reasoning. Two credits means few graded pieces, and taken as a nursing prerequisite the course sits under the same 76 percent floor Chamberlain applies to core work, so a couple of thin write-ups early can be expensive to recover from later.
Strong write-ups are legible without effort. The path is explicit, the units cancel on the page, the rounding happens once, and every answer is a sentence with a unit in it. They also close the loop between the two halves of this course, saying what the number means in a body rather than stopping when the calculation stops. That habit costs one or two sentences per problem and is the clearest signal a grader gets that the chemistry was understood rather than executed.
Six mistakes that quietly cost marks
- A number with no unit. In chemistry the unit is part of the answer, and a bare value cannot be marked correct even when it is.
- Rounding partway through. Precision lost early cannot be recovered later, and it turns a right method into a wrong result.
- Using an unbalanced equation. Any ratio taken from an unbalanced equation is wrong before the arithmetic begins.
- Giving the answer with no reason for the method. The row usually asks why you chose the relationship, and that sentence is often worth more than the calculation.
- Treating grams as a count. Mass and amount connect through a conversion, and skipping it is the fastest route to an answer of the wrong magnitude.
- Listing macromolecules with no function. The biochemistry rows ask what a molecule does and what happens when conditions change it, not what group it belongs to.
Questions CHEM-110 students ask
My answers were right and I still lost marks. What was missing?
How much depth does a nursing student really need in the explanation questions?
The biochemistry at the end feels disconnected from the calculations at the start. How do they relate?
Where CHEM-110 sits in Chamberlain's programs
Open the exact program map for sequence, credit, and option context. The current student schedule and syllabus remain authoritative after transfer evaluation, electives, state rules, and approved plan changes.
The weeks, one by one
The public curriculum verifies CHEM-110 but does not publish its Week 1 through Week 8 Canvas assignments. Week manuals are added only from verified real deliverables; session length is never used to invent them.