Edexcel igcse chemistry Study guides, Class notes & Summaries

Edexcel iGCSE Chemistry, question and answer with rated solution Experiment for Diffusion? 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? 1) Put a coloured substance in a solvent e.g food colouring in water. 2) Over the time, the colour le...

IGCSE EDEXCEL CHEMISTRY (organic chemistry) NEWEST EXAM 2024 WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS|ALREADY GRADED A+

Experiment for Diffusion? - correct answer 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? - correct answer 1) Put a coloured substance in a solvent e.g food colouring in water. 2) Over ...

EDEXCEL IGCSE Chemistry Questions And Answers The acid used for sulfate ion test - ANSWER hydrochloric acid The solution used for sulfate ion test (there can be 2) - ANSWER barium chloride The colour of barium sulfate precipitate - ANSWER white The acid used for carbonate ion test (dilute) - ANSWER nitric acid Indication of a carbonate ion - ANSWER bubbles Hydroxide precipitation tests (excess) Potassium (K+) - ANSWER none ...

High Giant ionic structures melting point/ boiling point Closely packed lattice arranged by the attraction between oppositely charged ions Giant ionic structures structure The electrostatic attraction between oppositely charged ions is very strong so requires a lot of energy to overcome Why do giant ionic structures have high mps/bps? The stronger the forces of attraction The higher the charges of the ions in a giant ionic structure ... 4 How many other atoms is ...

Edexcel iGCSE Chemistry 2022 new study guide solved solution

IGCSE Edexcel Chemistry with complete solution

IGCSE Edexcel Chemistry

IGCSE Edexcel Chemistry (Inorganic Chemistry) Exam With 100% Correct Answers 2024 Formula of nitric acid HNO3 Name of HCl Hydrochloric acid Formula of sulfuric acid H2SO4 Test for hydrogen gas Lighted splint. Squeaky pop. Test for oxygen gas Relights a glowing splint Test for carbon dioxide Turns limewater cloudy Test for ammonia gas Damp red litmus paper turns blue Test for chlorine gas Bleaches damp litmus paper Bleaches damp litmus paper Chlorine gas A gas that turns damp...

IGCSE Edexcel Chemistry (Inorganic Chemistry) Exam With 100% Correct Answers 2024 Formula of nitric acid HNO3 Name of HCl Hydrochloric acid Formula of sulfuric acid H2SO4 Test for hydrogen gas Lighted splint. Squeaky pop. Test for oxygen gas Relights a glowing splint Test for carbon dioxide Turns limewater cloudy Test for ammonia gas Damp red litmus paper turns blue Test for chlorine gas Bleaches damp litmus paper Bleaches damp litmus paper Chlorine gas A gas that turns damp...