Chemistry Homework Assistance
QuestionAI's chemistry problem solver is a middle school chemistry tutoring tool that summarises key chemical reactions and equations in real-time, featuring a robust learning system to empower even those with a weak foundation in chemistry.
You needn't fret over the elemental properties of the periodic table anymore. Here, you can effortlessly access chemical reactions and reaction principles corresponding to each element. Deductive reasoning from microscopic phenomena to discern the original structure of molecules and atoms is a research technique we staunchly champion.
- (c) The student wrote about how the copper sulphate was made. "Some of the acid was warmed. Copper oxide was added. The mixture was stirred. More copper oxide was added until no more would react. The mixture was then filtered." (i) Why was the acid warmed? __ (ii) Copper oxide was added until no more a would react. Explain why. __ (iii) The filtration apparatus is shown. Describe and explain what happens as the mixture is filtered. __ (1) (2) x
- To test for the presence of carbon dioxide, one should use - (1)- ", and the solution will go from 2)- if carbon dioxide is present. 1: limewater; 2: cloudy to colourless 1: limewater; 2 colourless to cloudy 1: calcium carbonate:2: cloudy to colourless 1: calcium carbonate 2: colourless to cloudy
- At which electrode does oxidation happen during electrolysis?
- Which ions (positive or negative) will be reduced during electrolysis?
- If a dilute solution of hydrochloric acid is electrolysed, what gas will be produced at the anod Answer in words not symbols.