Chemical Equations and Reactions, Ratio & Moles
Quiz by Ralph
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- Q1
2 C12H22O11 contains ____________________.
12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms
24 carbon atoms, 44 carbon atoms, and 22 oxygen atoms
6 carbon atoms, 11 hydrogen atoms, and 22 oxygen atoms
30s - Q2
Which type of chemical reaction is shown below?
single replacement
synthesis
decomposition
double replacement
30s - Q3
32 grams of sulfur (S) reacts with 56 grams of iron (Fe) and produced _____ grams of iron sulfide (FeS).
56 grams
24 grams
88 grams
32 grams
30s - Q4
Which of the following is a CORRECT statement?
Increasing temperature makes the particles move faster resulting to more collisions.
Decreasing temperature makes the particles move faster resulting to less collisions.
Increasing temperature makes the particles move faster resulting to less collisions.
Decreasing temperature makes the particles move faster resulting to more collisions.
30s - Q5
What is the molar mass of Magnesium (Mg)?
72.63 g/mol
196.97 g/mol
24.31 g/mol
54.94 g/mol
30s - Q6
What is the molar mass of a compound lithium bromide, LiBr?
86.84 g/mol
79.9 g/mol
84.86 g/mol
63.55 g/mol
30s - Q7
Given the chemical equation below, how many moles of ammonia (NH3) formed?
4
2
1
3
30s - Q8
What is the molar ratio of nitrogen (N2) to hydrogen (H2)?
1/3
3/2
1/1
1/2
30s - Q9
If you have 3 grams of nitrogen (N2), how many moles of nitrogen do you have?
(Hint: Determine the molar mass of nitrogen using the periodic table.)
3 moles N2
42.03 moles N2
0.21 moles N2
4.67 moles N2
300s - Q10
Use the given balanced equation to answer this question:
If you have 7 moles of hydrogen (H2), how many moles of ammonia (NH3) can be produced?
(HINT: Determine first the molar ratio between NH3 and H2 using the given balanced equation . )
4.67 moles NH3
6 moles NH3
2.33 moles NH3
10.5 moles NH3
300s
