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Lesson Worksheet: Reacting Metals and Acid Science
In this worksheet, we will practice describing the reactions of metals with acids.
A teacher doing a demonstration added a small piece of magnesium to a test tube, test tube 1, containing 5 mL of dilute hydrochloric acid. To compare the results, the teacher added a piece of zinc to a similar test tube, test tube 2, also containing 5 mL of the same hydrochloric acid. In which test tube was the reaction more vigorous?
- ATest tube 2
- BTest tube 1
Which of the following would not be an indication that a chemical reaction has taken place?
- AA change in temperature
- BA change in state from liquid to gas
- CA change in mass
- DBubbles of gas being given off
- EThe reaction mixture changing color
Which of the following statements explains why copper does not react with dilute sulfuric acid?
- ACopper does not contain any hydrogen.
- BCopper is covered in a protective oxide layer.
- CCopper is more reactive than sulfuric acid.
- DCopper is less reactive than hydrogen.
- ECopper only reacts with hydrochloric acid.
Which of the following is the correct word equation to explain the general reaction between an acid and a metal?
A student observes vigorous bubbles being given off in a test tube after adding a piece of zinc metal to an unknown solution that the student suspects might be an acid. How could the student test for the presence of hydrogen gas?
- ABy testing for a pop using a lit splint
- BBy seeing if the gas bleaches damp red litmus paper
- CBy bubbling the gas through limewater to see if the limewater turns milky
- DBy seeing if the gas turns the color of damp litmus paper from red to blue
- EBy testing with a glowing splint to see if it relights
The four stages of the test for hydrogen gas are listed below in the wrong order:
- Place the end of the splint into the second test tube.
- Listen for a squeaky pop.
- Collect the gas in a second empty test tube.
- Light a wooden splint.
What is the correct order to correctly carry out this test?
- A2, 1, 4, 3
- B1, 2, 3, 4
- C1, 3, 2, 4
- D3, 1, 4, 2
- E3, 4, 1, 2
Complete the following symbol equation:
A student drops a small piece of magnesium metal into a test tube containing nitric acid. The student observes bubbles in the test tube. Which gas is being produced?
- AHydrogen sulfide
- BCarbon dioxide
Consider the following numbered list:
- Sulfuric acid
- Hydrochloric acid
- Nitric acid
Which combination of an acid and a metal produces the salt named zinc sulfate?
Complete the following word equation: