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Is baking soda and vinegar a chemical change or physical change?

Mixing baking soda and vinegar results in a chemical change.

Evidence - What did you observe when the baking soda and vinegar where mixed? Answer the question with one or more complete sentences for full credit.

When baking soda and vinegar are mixed, I observed fizzing and bubbling, along with the production of carbon dioxide gas. This indicates a chemical reaction taking place between the two substances.

Reasoning - How does your evidence support your claim? Answer the question with one or more complete sentences for full credit.

The fizzing and bubbling observed when baking soda and vinegar are mixed is a clear indication of a chemical reaction occurring. This reaction results in the release of carbon dioxide gas, which is evidence that a new substance is being formed. Therefore, the evidence supports the claim that mixing baking soda and vinegar is a chemical change.

Is this an example of an exothermic reaction or an endothermic reaction? Hint: how did the temperature of the vinegar before the experiment compare to the vinegar after the experiment?(1 point)

Responses

Exothermic
Exothermic

Endothermic
Endothermic

This is an exothermic reaction. The temperature of the vinegar increases after the reaction, indicating that energy is being released in the form of heat.

Is cooking an egg a chemical change or physical.

Cooking an egg is a chemical change.

Evidence - What did you observe in the video that tells you the egg is cooking? *Imagine you were actually cooking the egg: what would you see, hear and smell?

Unfortunately, as a text-based AI, I am unable to watch videos. However, when cooking an egg, you would typically observe several changes. Initially, the egg's transparent egg white would turn opaque and solidify. The yolk would undergo a chemical change as well, changing from a liquid to a solid state. You might hear sizzling or cracking sounds as the egg cooks due to the heat. Additionally, you might detect the aroma of cooked egg as it releases volatile compounds.

Reasoning - How does your evidence support your claim? please use this sentence stem when replying to my question: From this evidence, the conclusion we can make is _____ because _____.

From this evidence, the conclusion we can make is that cooking an egg is a chemical change because several observable changes occur. The transparent egg whites turning opaque and solidifying, along with the liquid yolk transforming into a solid, indicate a chemical transformation taking place. The sizzling and cracking sounds, as well as the release of aromas, further support the notion that chemical reactions are happening during the cooking process.

why is cutting down a tree a physical change? please use these sentence stems when you answer my question: The evidence I used to support ____ is _____. Based upon _____, my hypothesis is _____.

The evidence I used to support cutting down a tree as a physical change is the physical alteration of the tree's form and structure. When a tree is cut down, it undergoes a transformation in its physical state, but its chemical composition remains the same. Based upon the observation that cutting only changes the shape and size of the tree, my hypothesis is that cutting down a tree is a physical change rather than a chemical change.

Reasoning - How does your evidence support your claim? please use these sentence steams when answering my question: The reason I believe _____ is _____. From this evidence, the conclusion we can make is _____ because _____.

The reason I believe cutting down a tree is a physical change is that the action of cutting alters the tree's physical characteristics without changing its chemical composition. The evidence I used to support this claim is the observation that cutting only affects the tree's shape and size. From this evidence, the conclusion we can make is that cutting down a tree is a physical change because it does not involve any chemical reactions or transformations in the tree's fundamental structure.

Is a forest fire a chemical change or physical?

A forest fire is a chemical change.

Why is a forest fire a chemical change? please use theses sentence steam when answering my question: The evidence I use to support _____ is _____. I know that _____ is _____ because _____.

The evidence I use to support a forest fire being a chemical change is the combustion process and the chemical reactions that occur during a fire. I know that a forest fire is a chemical change because the heat of the fire causes the organic matter in the forest, such as trees and vegetation, to undergo combustion reactions. These reactions involve the breaking and rearrangement of chemical bonds, resulting in the release of heat, light, and various gases. Therefore, the evidence suggests that a forest fire involves chemical transformations and qualifies as a chemical change.

Reasoning - How does your evidence support your claim? please use theses sentence steam when answering my question: Theses fact work together to build a case that _____ because _____. The reason I believe _____ is _____.

These facts work together to build a case that a forest fire is a chemical change because the combustion process and chemical reactions that take place during the fire are evidence of chemical transformations occurring. When organic matter in a forest burns, it undergoes combustion reactions, which involve the breaking and rearranging of chemical bonds. This leads to the production of heat, light, and gases, such as carbon dioxide and water vapor. The presence of these chemical reactions and the transformation of organic matter from solid to gas constitute strong evidence that a forest fire is a chemical change. Therefore, based on this evidence, I believe that a forest fire qualifies as a chemical change.