Question

Identify a few household substances (i.e., soap, water, salt, milk, etc.) that produce a chemical reaction when combined. Create a model of the reaction. Describe an experiment with these substances. Include how to record data that provides evidence of a chemical reaction. Use the models to describe the new substances formed. Show that mass was conserved.

Answer 1

Household Substances that Produce a Chemical Reaction:

1. Baking Soda (Sodium Bicarbonate) + Vinegar (Acetic Acid)
2. Hydrogen Peroxide + Yeast
3. Milk + Vinegar (making casein)

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Experiment: Baking Soda and Vinegar Reaction

Objective: To observe the reaction between baking soda and vinegar, identify the products formed, and demonstrate the conservation of mass.

Materials:

• Baking soda (sodium bicarbonate)
• White vinegar (acetic acid)
• A small container (like a cup)
• A larger container to catch overflow (to demonstrate the reaction)
• A balance for measuring mass
• Measuring spoons
• A stirring stick or spoon
• A balloon (optional, to capture gas)

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Procedure:

1. Measure and Record Mass:

   • Measure the mass of the empty small container using the balance. Record this mass.
   • Add 2 tablespoons of baking soda to the small container. Measure and record the mass.
   • Now weigh the small container with baking soda and record this total mass.

2. Add Vinegar:

   • In the larger container, measure 1 cup of vinegar.
   • Pour the vinegar into the small container with the baking soda and quickly move it to the larger container to catch any overflow.
   • Observe and record any physical changes during the reaction, such as fizzing and bubbling, which indicates a reaction is occurring.

3. Capture Gas (optional):

   • If using a balloon, put it over the mouth of the small container before adding the vinegar. This captures the carbon dioxide gas produced.

4. Let the Reaction Complete:

   • Allow the reaction to finish (bubbling will subside).

5. Measure and Record Final Mass:

   • After the reaction has completed, weigh the small container again (it will be empty if you captured the gas with a balloon).
   • Weigh the larger container that captures any overflow (which would include water and dissolved substances from the reaction).

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Data Recording:

• Initial Mass of Small Container: ___ grams
• Mass of Baking Soda Added: ___ grams
• Total Initial Mass (small container + baking soda): ___ grams
• Mass of Vinegar Added (1 cup): ___ grams
• Total Initial Mass Before Reaction (small container + baking soda + vinegar): ___ grams
• Mass of Small Container After Reaction: ___ grams (should be negligible if empty)
• Mass of Large Container After Reaction: ___ grams
• Total Mass After Reaction (large container + contents): ___ grams

Observations:

• Physical Changes: Fizzing, bubbling, formation of carbon dioxide gas, temperature change (if applicable).
• Color Changes: (If any).

Discussion of New Substances Formed:

• Products Identified: The reaction produces carbon dioxide gas, water, and sodium acetate. The observable fizzing indicates the release of carbon dioxide gas.

Conservation of Mass Verification:

• To demonstrate that mass was conserved, compare the total mass before the reaction to the total mass after the reaction. It should be observed that:

Initial Total Mass = Final Total Mass

This shows that mass was conserved during the chemical reaction, as no mass was lost despite the gas escaping into the environment.

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Conclusion:

This experiment provides evidence of a chemical reaction by observing gas release (fizzing), and the change in mass supports the principle of conservation of mass. The potential formation of new substances (sodium acetate and water) is indicated by the reaction components' combination and observable changes.

Answer 2

can you make it short and sound like a 7th grader

Answer 3

Experiment: Baking Soda and Vinegar Reaction

Objective: To see what happens when baking soda and vinegar mix, and to show that mass stays the same before and after the reaction.

Materials Needed:

• Baking soda
• Vinegar
• A small cup
• A bigger cup (to catch overflow)
• A balance to weigh things
• A spoon
• A balloon (optional)

Steps:

1. Weigh the Small Cup:

   • First, weigh the empty small cup with the balance and write down the weight.

2. Add Baking Soda:

   • Pour 2 tablespoons of baking soda into the small cup. Weigh it again and write down the new weight.

3. Add Vinegar:

   • In the bigger cup, measure 1 cup of vinegar.
   • Quickly pour the vinegar into the small cup with baking soda and move it to the bigger cup to catch any fizzing action.

4. Watch the Reaction:

   • Observe the bubbling and fizzing. This means a chemical reaction is happening! If you use a balloon, you can put it on the small cup first to catch the gas.

5. Weigh After the Reaction:

   • After the fizzing stops, weigh the small cup again (it should be empty if you caught the gas with the balloon).
   • Weigh the bigger cup with the overflow and write that down too.

Record Your Data:

• Weight of Empty Cup: ___ grams
• Weight of Baking Soda: ___ grams
• Weight of Vinegar: ___ grams
• Total Weight Before Mixing: ___ grams
• Weight of Small Cup After Mixing: ___ grams
• Weight of Bigger Cup After Mixing: ___ grams

Observations:

• What You See: Bubbles, fizzing, maybe a temperature change.
• New Substances: Carbon dioxide gas, water, and sodium acetate are formed.

Conservation of Mass:

Check if the total weight before the reaction equals the total weight after. They should be the same! This means that mass is conserved, proving that even though gas was produced, nothing was lost.

Conclusion:

By mixing baking soda and vinegar, we see a fun reaction with fizzing! Plus, confirming that mass stays the same helps us understand an important science rule.

Answer 4

can you get rid of *

Answer 5

Experiment: Baking Soda and Vinegar Reaction

Objective:
To see what happens when baking soda and vinegar mix and to show that mass stays the same before and after the reaction.

Materials Needed:

• Baking soda
• Vinegar
• A small cup
• A bigger cup (to catch overflow)
• A balance to weigh things
• A spoon
• A balloon (optional)

Steps:

1. Weigh the Small Cup:
   First, weigh the empty small cup with the balance and write down the weight.

2. Add Baking Soda:
   Pour 2 tablespoons of baking soda into the small cup. Weigh it again and write down the new weight.

3. Add Vinegar:
   In the bigger cup, measure 1 cup of vinegar. Quickly pour the vinegar into the small cup with baking soda and move it to the bigger cup to catch any fizzing action.

4. Watch the Reaction:
   Observe the bubbling and fizzing. This means a chemical reaction is happening! If you use a balloon, you can put it on the small cup first to catch the gas.

5. Weigh After the Reaction:
   After the fizzing stops, weigh the small cup again (it should be empty if you caught the gas with the balloon). Weigh the bigger cup with the overflow and write that down too.

Record Your Data:

• Weight of Empty Cup: ___ grams
• Weight of Baking Soda: ___ grams
• Weight of Vinegar: ___ grams
• Total Weight Before Mixing: ___ grams
• Weight of Small Cup After Mixing: ___ grams
• Weight of Bigger Cup After Mixing: ___ grams

Observations:

• What You See: Bubbles, fizzing, maybe a temperature change.
• New Substances: Carbon dioxide gas, water, and sodium acetate are formed.

Conservation of Mass:

Check if the total weight before the reaction equals the total weight after. They should be the same! This means that mass is conserved, proving that even though gas was produced, nothing was lost.

Conclusion:

By mixing baking soda and vinegar, we see a fun reaction with fizzing! Plus, confirming that mass stays the same helps us understand an important science rule.

Answer 6

make it look like a 7th grader did it

Answer 7

Baking Soda and Vinegar Experiment

Objective:
Today, we’re going to see what happens when we mix baking soda and vinegar. We’ll also check if the mass stays the same before and after the reaction!

Materials Needed:

• Baking soda
• Vinegar
• A small cup
• A bigger cup (to catch the overflow)
• A scale (to weigh stuff)
• A spoon
• A balloon (if you want)

Steps:

1. Weigh the Small Cup:
   First, I weighed the empty small cup and wrote down the weight. (Make sure you use grams!)

2. Add Baking Soda:
   Next, I poured 2 tablespoons of baking soda into the small cup. Then I weighed the cup again and noted the new weight.

3. Add Vinegar:
   In the bigger cup, I measured out 1 cup of vinegar. I quickly poured the vinegar into the small cup with baking soda and moved it to the bigger cup before the fizzing started so it wouldn’t make a mess.

4. Watch the Reaction:
   Wow! The mixture fizzes and bubbles like crazy! This shows that a chemical reaction is happening. If I used a balloon, I would place it over the small cup to catch some of the gas.

5. Weigh After the Reaction:
   After the fizzing stopped, I weighed the small cup again. (If I caught the gas in the balloon, it should be empty now.) I also weighed the bigger cup with whatever overflow there was.

Record Your Data:

• Weight of Empty Cup: ___ grams
• Weight of Baking Soda: ___ grams
• Weight of Vinegar: ___ grams
• Total Weight Before Mixing: ___ grams
• Weight of Small Cup After Mixing: ___ grams
• Weight of Bigger Cup After Mixing: ___ grams

Observations:

• I saw lots of bubbles and fizzing. It was super cool to watch!
• The new substances made from the reaction include carbon dioxide gas (that’s what makes it bubble), water, and sodium acetate.

Conservation of Mass:

Now I’ll check if the total weight before mixing is the same as after. They should match! This shows that mass is conserved, which means nothing was lost even though gas was released.

Conclusion:

Mixing baking soda and vinegar made a really fun reaction with fizzing! Plus, by checking the mass before and after the experiment, I learned about an important science rule: mass doesn’t change in a chemical reaction! How awesome is that?