Do you understand the Law of Conservation of Mass?
Conservation of Mass Quiz
2.8 out of 5 stars (based on 5 reviews)
Time limit: 0
Quiz Summary
0 of 36 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Results
Quiz complete. Results are being recorded.
Results
0 of 36 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
| Average score |
|
| Your score |
|
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- Current
- Review
- Answered
- Correct
- Incorrect
-
Question 1 of 36
1. Question
The mass before reactions is the same as after reactions, this is known as the Law of ……
CorrectIncorrect -
Question 2 of 36
2. Question
Closed, non-enclosed, neutralisation, precipitation, equal, non-equal
-
Complete the statement describing a chemical reaction:
Potassium iodide solution and lead nitrate solution react in a closed flask to form a yellow precipitate of lead iodide and a colourless solution of potassium nitrate. This is a reaction and since it occurs in a closed flask it is an example of a system. The mass of the reactants and products will be .
CorrectIncorrect -
-
Question 3 of 36
3. Question
In non-enclosed systems, the mass of the products may be lower than the reactants. This does not violate the Law of Conservation of Mass. Why is this the case?
CorrectIncorrect -
Question 4 of 36
4. Question
In non-enclosed systems, the mass of the products may be higher than the reactants. This does not violate the Law of Conservation of Mass. Why is this the case?
CorrectIncorrect -
Question 5 of 36
5. Question
Balance the following chemical equation.
-
O₂ → O₃
CorrectIncorrect -
-
Question 6 of 36
6. Question
Balance the following chemical equation.
-
O₂ + NH₃ → HNO₃ + H₂O
CorrectIncorrect -
-
Question 7 of 36
7. Question
Balance the following chemical equation.
-
Rb + H₂O → RbOH + H₂
CorrectIncorrect -
-
Question 8 of 36
8. Question
Balance the following chemical equation.
-
H₂O₂ → H₂O + O₂
CorrectIncorrect -
-
Question 9 of 36
9. Question
Balance the following chemical equation.
-
Cl₂ + KBr → KCl + Br₂
CorrectIncorrect -
-
Question 10 of 36
10. Question
Balance the following chemical equation.
-
N₂ + H₂ → NH₃
CorrectIncorrect -
-
Question 11 of 36
11. Question
Balance the following chemical equation.
-
NdF₃ + Ca → Nd + CaF₂
CorrectIncorrect -
-
Question 12 of 36
12. Question
Balance the following chemical equation.
-
CH₄ + H₂O → CO + H₂
CorrectIncorrect -
-
Question 13 of 36
13. Question
Balance the following chemical equation.
-
C₂H₅OH + O₂ → CO₂ + H₂O
CorrectIncorrect -
-
Question 14 of 36
14. Question
Balance the following chemical equation.
-
Al + Fe₂O₃ → Fe + Al₂O₃
CorrectIncorrect -
-
Question 15 of 36
15. Question
Balance the following chemical equation.
-
HCl + Ca(OH)₂ → CaCl₂ + H₂O
CorrectIncorrect -
-
Question 16 of 36
16. Question
Balance the following chemical equation.
-
HNO₃ + CaCO₃ → Ca(NO₃)₂ + CO₂ + H₂O
CorrectIncorrect -
-
Question 17 of 36
17. Question
Balance the following chemical equation.
-
Al + O₂ → Al₂O₃
CorrectIncorrect -
-
Question 18 of 36
18. Question
Balance the following chemical equation.
-
P + Cl₂ → PCl₃
CorrectIncorrect -
-
Question 19 of 36
19. Question
Balance the following chemical equation.
-
P₄ + O₂ → P₂O₅
CorrectIncorrect -
-
Question 20 of 36
20. Question
Balance the following chemical equation.
-
H₂ + O₂ → H₂O
CorrectIncorrect -
-
Question 21 of 36
21. Question
Balance the following chemical equation.
-
Fe + O₂ → Fe₂O₃
CorrectIncorrect -
-
Question 22 of 36
22. Question
Balance the following chemical equation.
-
HCl + NaOH → NaCl + H₂O
CorrectIncorrect -
-
Question 23 of 36
23. Question
Balance the following chemical equation
-
Mg + O₂ → MgO
CorrectIncorrect -
-
Question 24 of 36
24. Question
Balance the following chemical equation.
- CH₄
+ O₂ → CO₂ +H₂O
CorrectIncorrect -
-
Question 25 of 36
25. Question
Balance the following chemical equation.
-
Mg + HCl → MgCl₂ + H₂
CorrectIncorrect -
-
Question 26 of 36
26. Question
Balance the following chemical equation.
- Al
+ Br2 → AlBr3
CorrectIncorrect -
-
Question 27 of 36
27. Question
Balance the following chemical equation.
-
KClO₃ → KCl + O2
CorrectIncorrect -
-
Question 28 of 36
28. Question
Balance the following chemical equation.
- C₃H₈
+ 5O₂ → 3CO₂ +4 H₂O
CorrectIncorrect -
-
Question 29 of 36
29. Question
Balance the following chemical equation.
-
CaCO₃ → CaO + CO₂
CorrectIncorrect -
-
Question 30 of 36
30. Question
Balance the following chemical equation.
-
Al + Br₂ → AlBr₃
CorrectIncorrect -
-
Question 31 of 36
31. Question
Balance the following chemical equation.
-
CH₄ + O₂ → CO₂ + H₂O
CorrectIncorrect -
-
Question 32 of 36
32. Question
Balance the following chemical equation.
-
C₃H₈ + O₂ → CO₂ + H₂O
CorrectIncorrect -
-
Question 33 of 36
33. Question
Balance the following chemical equation.
-
CaCO₃ + HCl → CaCl₂ + CO₂ H₂O
CorrectIncorrect -
-
Question 34 of 36
34. Question
Balance the following chemical equation.
-
CaCO₃+
HCl→
CaCl₂
+CO₂
CorrectIncorrect -
-
Question 35 of 36
35. Question
Calculate the mass of fluorine needed to make 100g of magnesium fluoride. Consult the periodic table for all of the information you will need. Answer to one decimal place.
The balanced chemical equation for this reaction is:
F₂ + Mg → MgF₂
-
g
CorrectIncorrect -
-
Question 36 of 36
36. Question
[question number = 05.3] Calculate the mass of oxygen needed to react with 20g of hydrogen to make water.
The balanced chemical equation for this reaction is:
2H₂ + O₂ → 2H₂O
-
g
CorrectIncorrect -