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.
- Except for mercury, which state are all metals in at room temperature?
- What is the reactant(s) in the chemical equation below? Cu(s)+2AgNO_(3)(aq)arrow 2Ag(s)+Cu(NO_(3))_(2)(aq) A. 2Ag(s) B 2Ag(s)+Cu(NO_(3))_(2)(aq) C. Cu(s) D Cu(s)+2AgNO_(3)(aq)
- If the Delta G of a reaction was -31.45kJoules you would know that: Multiple Choice the reaction is spontaneous. the products have more free energy than the reactants. the reaction requires an energy input of 3145 kJoules to proceed. the reaction most likely leads to development of a more ordered system.
- (b) The student investigated the temperature change when different masses of sodium carbonate were added to 50 mathrm(~cm)^3 of water at 20^circ mathrm(C) . Table 2 below shows the results. Table 2 }(l) Mass of sodium carbonate in mathrm(g) & Final temperature of solution in ( )^circ mathrm(C) 2.0 & 21.5 4.0 & 23.0 6.0 & 24.5 8.0 & 26.0 10.0 & 26.6 12.0 & 26.6 14.0 & 26.6 Describe the relationship between the mass of sodium carbonate added and the final temperature of the solution. Use values from Table 2 in your answer. (3mar
- The student added 1.0 mathrm(~g) of magnesium to 50 mathrm(~cm)^3 of zinc sulfate solution and measured the temperature increase. The student repeated the experiment two more times. The table below shows the results. multicolumn(4)(|c|)( Temperature increase in ( )^circ mathrm(C) ) Experiment 1 & Experiment 2 & Experiment 3 & Mean 7.6 & 7.3 & 7.6 & Y (c) Calculate value Y in the table. [ Y= ] ( )^circ mathrm(C) (2)