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.
- ooo New Question 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: calcium carbonate; 2:cloudy to colourless 1: limewater; 2: cloudy to colourless 1: limewater; 2: colourless to cloudy 1: calcium carbonate 2: colourless to cloudy
- Paper CHROMATOGRAPHY is carried out on a mixture. One of the COMPONENTS travelled 2.5 cm and the SOLVENT travelled 8.7 cm. The Rf value is... (2.5)/(8.7)=0.29 8.7-2.5=6.2 (8.7)/(2.5)=3.48 8.7+2.5=11.2
- A reaction that gives off heat to its surroundings is: exothermic endothermic endergonic none of these
- 38. Which of the following is against lab rules? long, loose clothing B flammable clothing c dangling jewelry all of the above
- Which of the following is a chemical property of a substance? Color Flammable (burns) Texture Shape