23 сент. 2024 г. · Revision notes on Formulae for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. |
V = E. Q. Voltage (V) = current (A) × resistance (Ω). V = IR. Power (W) = current (A) × voltage (V). P = IV. Power (W) = current2 (A) × resistance (Ω). |
1. Multiply the relative atomic mass of each isotope by its relative abundance 2. Add these all together 3. Divide by the sum of the relative abundance. |
This page contains the detailed and easy notes for Edexcel IGCSE Chemistry Chemical Formulae,Equation and Calculation for revision and understanding. |
All Chemistry Formulas for O levels Chemistry by Ethan Wu. Hydrogen carbonate HCO3. -. Hydride H-. Hydroxide OH-. Carbonate CO3. 2-. Nitrate NO3. -. Nitrite NO2. |
19 авг. 2024 г. · Explore writing chemical equations for IGCSE Chemistry, using the Law of Conservation of Mass. Learn to write word and formula equations ... |
Equation linking moles, concentration and volume. moles = concentration x volume. Equation linking mass, moles and relative formula. |
Chemical formulae serve as a shorthand to express the makeup of molecules and compounds, revealing the elements involved and their relative proportions. |
e) Chemical formulae and chemical equations · 1. Write down the balanced chemical equation: Na2CO3 + 2HCl → 2NaCl + H2O + CO · 2. Find the moles of sodium ... |
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