Reactions Of Metals And Metal Carbonates

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Connolly.r
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Quizzes Created: 1 | Total Attempts: 183
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  • 1/7 Questions

    What is the formula for carbon dioxide?

    • C2O
    • CO
    • CO2
    • C2O2
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About This Quiz

Explore the exciting reactions of metals and metal carbonates in this engaging quiz. Test your knowledge on chemical formulas, gas identification tests, and observe reaction outcomes. Essential for learners aiming to understand fundamental chemistry interactions.

Reactions Of Metals And Metal Carbonates - Quiz

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  • 2. 

    What is the test and positive result for carbon dioxide gas?

    • Limewater - cloudy

    • Universal indicator - red

    • Lit splint - squeaky pop

    • Litmus paper - blue

    Correct Answer
    A. Limewater - cloudy
    Explanation
    When carbon dioxide gas is passed through limewater, it forms a white precipitate of calcium carbonate, making the limewater cloudy. This is a positive result for the presence of carbon dioxide gas.

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  • 3. 

    What is the formula for hydrogen gas?

    • H

    • H2

    • H

    • H2

    Correct Answer
    A. H2
    Explanation
    The correct answer is H2. Hydrogen gas is composed of two hydrogen atoms bonded together, which is represented by the chemical formula H2.

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  • 4. 

    What is the test and positive result for hydrogen gas?

    • Universal indicator - red

    • Limewater - cloudy 

    • Litmus paper - blue

    • Lit splint - squeaky pop

    Correct Answer
    A. Lit splint - squeaky pop
    Explanation
    A lit splint produces a squeaky pop sound when it comes into contact with hydrogen gas. This is because hydrogen gas is highly flammable and reacts explosively with oxygen in the presence of a flame. The reaction produces water vapor and releases energy, causing the characteristic squeaky pop sound. Therefore, a positive result for hydrogen gas can be determined by observing this reaction with a lit splint.

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  • 5. 

    Acid + Metal --> ________ + hydrogen

    Correct Answer
    salt, Salt
    Explanation
    When an acid reacts with a metal, it produces a salt and hydrogen gas. The salt is formed by the combination of the metal cation from the metal and the anion from the acid. The hydrogen gas is released as a byproduct of the reaction. Therefore, the correct answer is "salt, Salt."

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  • 6. 

    Acid + Metal carbonate --> Salt + Water + ________

    Correct Answer
    carbon dioxide, Carbon Dioxide, Carbon dioxide, carbon Dioxide
    Explanation
    When an acid reacts with a metal carbonate, it produces salt, water, and carbon dioxide. In this case, the blank should be filled with "carbon dioxide" or any variation of it, such as "Carbon Dioxide" or "Carbon dioxide" or "carbon Dioxide".

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  • 7. 

    What is NOT a observation in a chemical reaction?

    • Change of colour

    • Change of temperature

    • Change of odour

    • Change of state

    • Effervescence (bubbles)

    Correct Answer
    A. Change of state
    Explanation
    In a chemical reaction, the change of state is not considered an observation. This is because a change of state, such as from a solid to a liquid or a gas, is a physical change rather than a chemical change. Observations in a chemical reaction typically involve changes in color, temperature, odor, or the formation of bubbles (effervescence), which indicate the release of a gas.

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Quiz Review Timeline (Updated): Jan 23, 2023 +

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  • Current Version
  • Jan 23, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 23, 2020
    Quiz Created by
    Connolly.r
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