Chemical reactions — definition?
Processes where substances change into new substances.
Reactants — role?
Substances that undergo a chemical change.
Products — role?
Substances formed after a reaction.
Metal + acid — pattern?
Produces salt and hydrogen gas.
Physical change — example?
Melting ice or crushing chalk.
Chemical change — example?
Burning wood or rusting iron.
Law of conservation — form?
Mass remains constant in reactions.
Mass of reactants — equals?
Mass of products in a reaction.
Reaction types — main?
Combination, decomposition, combustion.
Magnetic poles — types?
North and South poles.
Like poles — do?
Repel each other.
Unlike poles — do?
Attract each other.
Magnetic field — region?
Around a magnet where forces act.
Field lines — direction?
From North to South pole.
Electromagnet — core material?
Soft iron nail.
Variables — in investigations?
Independent, dependent, and controlled variables.
Teste tes connaissances avec un QCM de 8 questions sur Fundamentals of Chemical and Magnetic Science.
1. What is a chemical reaction?
2. Who formulated the law of conservation of mass in 1789?
Révisez le cours complet dans la fiche de révision de Fundamentals of Chemical and Magnetic Science.
Voir la fiche →Importe ton cours et l'IA génère des flashcards en 30 secondes.
Générateur de flashcards