Chemistry guideNatural Sciences

Chemistry study guide on one topic: clear explanation, worked examples, equations and exercises with answers

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Chemistry study guide on one topic: clear explanation, worked examples, equations and exercises with answers

Example result

Example for the Standard package

Study guide: solving linear equations, for students aged 13–14

The one rule

An equation is a balance. Whatever you do to one side, you do to the other, and the balance stays level. The goal is to get x alone on one side.

Worked example 3: the unknown on both sides

Solve 5x − 4 = 2x + 11.

  1. Move the x terms to one side: take 2x from both sides. 5x − 2x − 4 = 11, so 3x − 4 = 11.
  2. Move the numbers to the other side: add 4 to both sides. 3x = 15.
  3. Divide both sides by 3. x = 5.
  4. Check: 5 × 5 − 4 = 21 and 2 × 5 + 11 = 21. Both sides match.

Common mistake

In 3(x + 2) = 18, many students write 3x + 2 = 18. The 3 multiplies everything in the brackets: 3x + 6 = 18, so x = 4.

Exercises 7–10

  1. 4x + 3 = x + 18
  2. 2(x − 5) = 14
  3. 7 − x = 3x − 9
  4. 3(2x + 1) = 4x + 15

Answers: 7. x = 5 · 8. x = 12 · 9. x = 4 · 10. x = 6

Files: PDF and Word. The guide is for learning: we do not do homework or tests to be handed in.

Client: a parent whose daughter gets lost when an equation has brackets or the unknown on both sides. Task: a guide at middle school level that starts from the basics and builds up to those two cases. Standard package: up to 8 pages, 6 worked examples, 20 exercises with answers and a summary sheet. Excerpt below.

The client and all details are made up.

About this service

Chemistry gets easier once the learner sees the pattern behind the symbols. This guide takes one topic, such as atomic structure and the periodic table, bonding, balancing equations, the mole and calculations, solutions and concentration, acids and bases, redox, reaction rates or the basics of organic chemistry, and explains it in plain words, with worked examples set out step by step, from writing formulas to checking that atoms and charges balance. Common mistakes and exercises with answers follow. Structures are written as formulas and described in words rather than drawn. Tell us the grade or course, the textbook and what is hard. The guide explains chemistry on paper and gives no instructions for experiments. It is for learning: we do not do homework, lab reports, tests or exams to be handed in, and the exercises are new ones.

What is included

  • What you getA PDF and Word file on your chemistry topic: the idea in plain words, worked examples step by step, equations balanced and checked, calculations with units, common mistakes and exercises with answers. From Standard, a one-page summary sheet with the key rules and formulas; in Premium, a 20-question self-check test and a separate answer key with short explanations.
  • Patterns behind symbolsWhy elements and compounds behave as they do
  • Equations step by stepFormulas, balancing and checking atoms and charges
  • CalculationsMoles, masses and concentrations with units shown
  • Common mistakesChanging subscripts to balance, wrong molar mass, lost units
  • At your levelFrom first school chemistry to an intro college course

How it works

  1. 1
    TopicYou name the topic, the grade and what is hard
  2. 2
    WritingWe write the explanation, worked examples and exercises
  3. 3
    DeliveryYou get the guide in PDF and Word on the order page
  4. 4
    StudyYou practise with it and ask for changes within your package

What we need from you

The exact chemistry topic, the grade or course, the curriculum and textbook, the notation and naming your class uses, what the learner already knows and finds hard, the language, and how the guide will be used. You may attach a syllabus, a list of topics or a page of class notes as Word or PDF files, up to 3. Please do not send graded homework, tests or exam papers to be solved.

We will ask you:

  • Which chemistry topic?
  • For what level?
  • What does the learner already know, and what is hard?
  • Which curriculum or textbook should it follow?
  • Language and how the guide will be used

Compare packages

BasicUp to 4 pages$9StandardUp to 8 pages$18PremiumUp to 15 pages with a test$33
Deadline1 day2 days3 days
Revisions123
Pagesup to 4up to 8up to 15
Worked examples3610
Exercises with answers102035
Summary sheetNoYesYes
Test and answer keyNoNoYes, 20 questions
SubjectChemistryChemistryChemistry
OrderOrderOrder

Payment protection

You pay when you order, but the money is released only for accepted work.

  • Fixed priceThe package price does not change after you pay.
  • The money is reservedWhen you pay, the amount is only reserved. It is released to the service once you accept the work.
  • Checked before deliveryEvery result goes through a quality check before it reaches you, and you see it on the order page before accepting it.
  • Free revisionsAsk for changes within your brief as many times as the package allows.
  • Acceptance after 3 daysIf within 3 days of delivery you neither accept the work nor ask for changes, it is accepted automatically. If you write in the order chat after delivery, the order waits; once we answer, we may start the 3 days again and will say so in the chat.
  • Redo or a full refundIf the result does not match your brief and the revisions did not fix it, or the work takes more than twice its deadline, write in the order chat: we will redo the work or refund the payment in full.
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Questions and answers

Can you do my chemistry homework or lab report?

No. The guide teaches the topic with new examples and exercises; we do not do homework, lab reports, tests or exams to be handed in as your own work.

Does it include experiments?

It can explain on paper what happens in a classic experiment and why. It gives no instructions for doing experiments at home; practical work follows your school's safety rules and your teacher.

Are structures drawn?

Structures are written as formulas and described in words; for organic chemistry we use condensed formulas. We don't promise drawn structures.

Will it match my course?

We follow the level, curriculum and textbook you name, but programmes, notation and methods differ, so the learner or a teacher should check the guide against the course.

Can a teacher use it with a class?

Yes. Print it and share it with your learners; in Premium the test and the answer key are separate files, so you can hand out the test alone.

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