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Exams & Certifications

Chemistry Quizzes, Questions & Answers

Recent Chemistry Quizzes

Difficult Chemistry Questions and Answers

Questions: 28 | Attempts: 4093 | Last updated: Jun 22, 2025

Sample Question
If 50.0 g of benzene, C6H6, at 25.00C absorbs 2.71 kJ of energy in the form of heat, what is the final temperature of the benzene? The specific heat of benzene is 1.72 J/g·0C.

25.00C

31.50C

56.50C

32.30C

57.30C

QuÍmica (Diversos ámbitos)

Questions: 11 | Attempts: 5044 | Last updated: Mar 21, 2025

Sample Question
El gráfico representa el punto de ebullición contra el número de carbonos, para los 10 primeros alcanos y alquenos normales. De la gráfica se puede concluir que

El punto de ebullición aumenta a medida que se disminuye en las series

Los cuatro primeros miembros de las series son gases a temperatura ambiente

Las fuerzas de atracción entre moléculas son mayores en alquenos que en alcanos

A mayor peso molecular en alcanos y alquenos mayor punto de ebullición

Alternative Energy: Hydrogen Fuel Cells

Questions: 5 | Attempts: 1354 | Last updated: Mar 22, 2025

Sample Question
Hydrogen is limitless.

True

False

Intej Chemistry Department (Diagnostic 1)

Questions: 40 | Attempts: 97 | Last updated: Feb 6, 2025

Sample Question
Diagram 1 shows the atomic model of an atom. Which of the following scientists suggested the model?

Ernest Rutherford

James Chadwick

J.J. Thomson

Neils Bohr