Level 4 · Science S4.7
Reactions, equations and amounts
Write formulae and equations, count particles by weighing, and see how metals, acids and energy decide what reacts.
Write the formula of a compound from its ions and balance an equation. Use the mole to turn masses into numbers of particles, then work out how much product a reaction makes. Then follow acids, metals and electricity through reactions, and see why some reactions give out heat and why some are faster than others.
8 chapters. Your place is kept on this device only.
You are ready for this book if
You can write a word equation for something burning.
- One step up S5.5 Bonding and structure
- This book S4.7 Reactions, equations and amounts
- One step down S3.6 Elements, mixtures, reactions and acids
Contents
Keep it, print it, pass it on
- One file for any phone
907 KB. Opens with no internet. Share it with anyone. - PDF to print
1.1 MB, 104 A4 pages. Answers at the back. Copies well in black and white. - EPUB for reading apps
142 KB. For e-readers and book apps.
For parents and teachers
For learners who can follow a written argument, use letters for numbers, and have met atoms, ions and bonding. In many schools this fits learners of about 14 to 16, and older learners can use it as a reference. Each chapter takes two or three short sessions, and the sums in chapters 3 and 4 need a pencil and a calculator. A learner can work alone: every exercise has its answer and the reason for it. The Try it activities use paper, vinegar, baking soda, water, cabbage and chalk. Nothing is tasted and nothing is heated except water poured by an adult. Experiments that need a strong chemical, a flame, a molten salt or mains electricity are described as things scientists do, and the book says why they are not done at home. Keep vinegar and baking soda solution away from the eyes, and keep small items away from young children.
Strand: Matter. Written and drawn by attnom. Free to read, print and share.