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Course: Alhussan Chemistry — Stage 8
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Alhussan Chemistry — Stage 8

Chapter 7: Inside Atoms

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Chapter 8: Pure Substances and Solutions

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Chapter 9: Chemical Reactions 2

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Quiz

Chemistry 9.8 Metals and acids — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Which term matches this definition? “Salt from magnesium and sulfuric acid.”
Magnesium sulfate
Unreactive metal
Concentration
Copper oxide
2.
True or false? Sodium is safe to add to acid.
True
False
3.
True or false? The salt is named from the metal and the acid.
True
False
4.
Iron reacts with hydrochloric acid to give a pale ____ solution.
red
purple
blue
green
5.
38 cm³ of hydrogen in 50 s. Mean rate?
88.00 cm³/s
1.32 cm³/s
0.76 cm³/s
1900.00 cm³/s
6.
38 cm³ of hydrogen in 30 s. Mean rate?
1.27 cm³/s
68.00 cm³/s
0.79 cm³/s
1140.00 cm³/s
7.
True or false? Iron + hydrochloric acid → iron chloride + hydrogen.
True
False
8.
Which term matches this definition? “Acid that makes sulfates.”
Sulfuric acid
Electron
Vigorous
Lead poisoning
9.
True or false? Metal + acid → salt + hydrogen.
True
False
10.
Which term matches this definition? “Salt from zinc and hydrochloric acid.”
Copper sulfate
Zinc chloride
Metal oxide
Lead
11.
60 cm³ of hydrogen in 50 s. Mean rate?
1.20 cm³/s
0.83 cm³/s
110.00 cm³/s
3000.00 cm³/s
12.
Which term matches this definition? “Gas made by metals with water or acids.”
Metal hydroxide
Copper oxide
Hydrogen
Hydrochloric acid
13.
Salts made from metals and acids in class. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
14.
All these reactions make ____ gas.
chlorine
nitrogen
oxygen
hydrogen
15.
Hydrogen made by metals in acid in 1 minute. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
16.
Hydrogen from magnesium in acid. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
17.
Hydrogen from magnesium in acid. Between which two values of "Time (s)" did "Hydrogen (cm³)" change the most?
Dr Dabour Hub Academy - figure 4
0 and 10
30 and 40
10 and 20
50 and 60
18.
Salts made from metals and acids in class. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
19.
50 cm³ of hydrogen in 30 s. Mean rate?
1.67 cm³/s
1500.00 cm³/s
0.60 cm³/s
80.00 cm³/s
20.
60 cm³ of hydrogen in 20 s. Mean rate?
0.33 cm³/s
1200.00 cm³/s
80.00 cm³/s
3.00 cm³/s
21.
True or false? Magnesium fizzes more than zinc in acid.
True
False
22.
Salts made from metals and acids in class. Which has the greatest value?
Dr Dabour Hub Academy - figure 6
Magnesium sulfate
Magnesium chloride
Iron chloride
Zinc sulfate
23.
Which is the correct definition of “Hydrogen”?
Gas made by metals with water or acids.
Compound formed from an acid.
Black compound formed by heating copper.
Test result for hydrogen.
24.
Copper does ____ react with dilute acids.
not
explosively
slowly
readily
25.
The bar chart shows the temperature rise when metals react with acid. Which is most reactive?
Dr Dabour Hub Academy - figure 7
Zinc
Iron
Magnesium
Copper
26.
True or false? Nitric acid forms nitrates.
True
False
27.
Which statement is correct?
Sulfuric acid makes chlorides.
Metal + acid cools the tube.
Copper fizzes in dilute acid.
Excess metal is removed by filtering.
28.
True or false? The more reactive the metal, the greater the temperature rise with acid.
True
False
29.
Which statement is correct?
Sulfuric acid makes chlorides.
Sodium is safe to add to acid.
Copper fizzes in dilute acid.
Magnesium + hydrochloric acid → magnesium chloride + hydrogen.
30.
Evaporating the solution leaves the ____.
acid
metal
salt
hydrogen
31.
Magnesium in acid raised the temperature from 19 °C to 37 °C. What was the rise?
18°C
56°C
37°C
19°C
32.
True or false? Sulfuric acid makes chlorides.
True
False
33.
The test tube gets ____ as metal reacts with acid.
frozen
unchanged
cold
warm
34.
Temperature rise when metals react with acid. What is the value for Iron?
Dr Dabour Hub Academy - figure 8
4
18
9
0
35.
Which is the correct definition of “Nitric acid”?
Wearing away by weather.
Least reactive common metal.
Acid that makes sulfates.
Acid that makes nitrates.
36.
Which is the correct definition of “Hydrochloric acid”?
Illness from lead entering the body.
Acid that makes chlorides.
Malleable, unreactive conductor used for pipes.
Dense, soft, grey metal low in the reactivity series.
37.
Magnesium made 64 cm³ and zinc 28 cm³. How many times more for magnesium?
0.4 times
92.0 times
2.3 times
36.0 times
38.
Which statement is correct?
Zinc is more reactive than magnesium.
Copper fizzes in dilute acid.
Magnesium fizzes more than zinc in acid.
Lead reacts vigorously with acid.
39.
Salts made from metals and acids in class. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
40.
Which is the correct definition of “Magnesium sulfate”?
More reactive metal replaces a less reactive one.
Gas made by metals with water or acids.
Negative particle in shells.
Salt from magnesium and sulfuric acid.
41.
Hydrogen made by metals in acid in 1 minute. Which has the greatest value?
Dr Dabour Hub Academy - figure 10
Magnesium
Lead
Iron
Zinc
42.
Hydrogen from magnesium in acid. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 11
"Hydrogen (cm³)" increases as "Time (s)" increases
"Hydrogen (cm³)" stays the same
"Hydrogen (cm³)" decreases as "Time (s)" increases
"Hydrogen (cm³)" rises to a peak at 50, then falls
43.
Temperature rise when metals react with acid. What is the total of all the values?
Dr Dabour Hub Academy - figure 12
27
35
18
31
44.
True or false? Potassium and sodium react with acids dangerously.
True
False
45.
Potassium and sodium react with acids ____.
slowly
gently
dangerously
never
46.
True or false? Zinc is more reactive than magnesium.
True
False
47.
True or false? Lead reacts vigorously with acid.
True
False
48.
Which statement is correct?
Lead reacts vigorously with acid.
Sulfuric acid makes chlorides.
Evaporating the solution leaves the salt.
Hydrogen is denser than air.
49.
Salts made from metals and acids in class. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
50.
Which statement is correct?
Sodium is safe to add to acid.
Hydrogen is denser than air.
Silver does not react with dilute acids.
Metal + acid gives CO2.
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Part of Chapter 9: Chemical Reactions 2 — see every lesson and quiz in this unit.
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