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.

Which equation is balanced? Al+CuOarrow Al_(2)O_(3)+Cu Miss Zoo was wading in the pool. __ 2Al+CuOarrow Al_(2)O_(3)+3Cu The victim was not attacked by a cougar. __ Al+3CuOarrow AlO+3Cu Coach Physics was drinking water in the atrium. 2Al+3CuOarrow Al_(2)O_(3)+3Cu There was no venomous bite involved.

500cm^3 of copper chloride solution contains 6.50 g of copper chloride. Calculate the mass of copper chloride in 40.0cm^3 of this copper chloride solution. __ Mass=

Q3. This question is about electrolysis. (a) metals are extracted from motion compounds using electrolysis. Why is electrolysis used to extract some metals? __ (b) Aluminium is produced by electrolysis of a molten mixture. What two substances does the molten mixture contain? 1 2 __ __ (c) Copper and chlorine are produced when molten copper chloride is electrolysed. Complete the half equation for the reaction at each electrode. Half equation at negative electrode Cu^2+arrow Half equation at positive electrode 2Cl^-arrow

10. As you saw in Model 1, all Arthenius bases in Model I have an OH^- ion in their chemical formulas. Write a balanced chemical reaction for the reaction of HCl(aq) with OH^-(aq) to illustrate that the hydroxide ion is also a Bronsted -Lowry base. 11. If you reverse Reaction 1 in Model 2, the following reaction is obtained. H_(3)O^-(aq)+Cl^-(aq)leftharpoons HCl(aq)+H_(2)O(l) a. For the reaction above, which reactant is acting like a Brensted-Lowry acid? How can you tell? b. For the reaction above, which reactant is acting like a Bronsted-Lowry base?How can you tell? 12. Write the reverse reactions for Reactions 2 and 3 in Model 2. Label the Bronsted-Lowry acid and base reactants for each reaction. Reaction 2 Reaction 3

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