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.

16. Which substance is liquid state? C_(16)H_(33)OH C_(16)H_(34) C_(16)H_(32) C_(16)H_(30) 17. A gas Y is obtained by heating 2 points a mixture of sodium propanoate and soda-lime . What is gas Y? Is gas Y saturated or unsaturated hydrocarbon? Y=propane, saturated hydrocarbon Y=propene, unsaturated hydrocarbon Y=ethane, saturated hydrocarbon Y=ethene, unsaturated hydrocarbon

Question 9 of 42 Which of the following best describes careers that use chemistry? A. Only careers that involve chemical manufacturing B. Careers that involve scientific research or chemistry instruction C. Only careers that involve scientific research D. A variety of careers in many different industries

1 Form Three student prepared an experiment to prepare a gas in the laboratory by decomposing a compound using electricity . A steady current was allowed to flow through the solution for 3 hours. At s.t.p 4.12dm^3 of the gas which relighted the glowing splint was produced. (a) What terminology is used to refer to such experimental set up? (b) Work out the current flowing in the circuit. 7. Classify the following salts on the basis of solubility in water.Sodium carbonate, Lead nitrate, Silver chloride, Copper (II) sulphate, Barium sulphate Zinc chloride and Lead sulphate. Table 2 shows the volume of soap solution needed to form lather with three samples of water of equal volumes. Use the data from the table to answer the questions that follow: Table 2 Water Sample Volume of Soap Solution (cm^3) E 6.5 F 0.2 G 3.7 (a) Identify two things other than the volume of water that must be kept constant for such data to be meaningful. (i) Identify which water sample has the highest hardness Give a reason. (ii) Give three causes of hardness of water. - I Consider the following substances: milk, copper,soap, steel, chlorine and sugar. (a) Identify the elements , compounds and mixtures from the list. (b) Give four differences between the elements identified in 9(a).

Question 25 of 42 Which of the following describes a way in which chemistry affects how you use a computer? A. You are able to play video games by moving your body instead of a joystick. B. The colors in the computer display are the result of substances that glow. C. By clicking a mouse, you can select an object or text on a computer screen. C D. Eye stress can be reduced by sitting a certain distance from the screen.

60. Pertaining to halogeno-alkanes.which of the following propositions is correct? A. They show a reactivity of the order. RClgt RBrgt RI B. They obey the general formula C_(n)H_(2n+1)X C. The can be prepared from a HX and alcohol D. They produce a nitrile upon reflux with KCN in alcohol E. None of the above