This quiz pulls questions at random from the entire 1100+ question-bank

1. What will happen to the equilibrium position when we decrease temperature? Give a reason for your prediction. 2A (s) + B (g) ⇋ C (g) + D (g) (+∆H)

Question 1 of 10

2. Explain, by referring to the electronic configurations, why lithium is less reactive than sodium.

Question 2 of 10

3. A compound that contained 24.24% Carbon. 4.04% Hydrogen and 71.72% Chlorine and has a relative molecular mass of 99. Calculate the empirical formula and the molecular formula.

Question 3 of 10

4. 200 cm³ of potassium sulfate solution has a concentration of 2 mol/dm³. What amount of potassium sulfate does it contain?

Question 4 of 10

5. Name this molecule

Question 5 of 10

6. For a reversible reaction to reach dynamic equilibria, where must the reaction take place?

Question 6 of 10

7. If iron oxide has the formula Fe₂O₃, what is the name and formula of the iron ion?

Question 7 of 10

8. How many neutrons in a typical atom of hydrogen?

Question 8 of 10

9. What is the formula for aluminium nitrate?

Question 9 of 10

10. How many neutrons in a typical atom of carbon?

Question 10 of 10


 

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