GCSE Science | Covalent Bonding Diagrams

* tera (T) x1012 * giga (G) x109 * mega (M) x106 * kilo (k) x103 * - * centi (c) x10-2 * milli (m) x10-3 * micro (μ) x10-6 * nano (n) x10-9

What do all acids contain and what is their pH? * H+ ions * pH is closer to 1 for strong acids and closer to 6 for weak acids What are the common ions? * nitrate

Law of conservation of energy * energy cannot be created or destroyed * it can only be transferred Common energy transfers * kinetic energy - in a moving object * gravitational potential - in a falling object