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is the colour change, tempeture change ,gas produced the most common ones
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What observations give that a chemical reaction has happened?
is the colour change, tempeture change ,gas produced the most common ones
Why is food darkening a chemical change?
This darkening involve chemical reactions.
What provides evidence that motion has happened?
A change in position is evidence that motion happened.
What is evidence that a chemical change has happened?
Evidence of a chemical change includes a change in color, formation of a precipitate, evolution of gas bubbles, or a change in temperature. Additionally, if the substance cannot be easily reversed back to its original form, it is likely a chemical change has occurred.
What should not be used to indicate a chemical reaction?
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
What happened to coal to turn into a fuel?
We can burn it to release its energy or use some chemical reactions to turn it into hydro-carbon fuels, called the "Fischer-Tropsch Synthesis".
What are some characteristics of induction?
Induction involves inferring a general principle from specific observations or instances. It is based on the assumption that what has happened in the past will continue to happen in the future. Inductive reasoning can provide strong evidence for a hypothesis, but it does not guarantee the conclusion as true.
What information is typically included in a police report?
A police report usually includes details about the incident, such as the date, time, and location, a description of what happened, statements from witnesses and involved parties, any evidence collected, and the officer's observations and actions taken.
What happened to the sevens?
they get a jacket that represents evidence
Why is it important to record your observations promptly and completely?
It is important yo record your observations so that you can always go back over what had just happened that way your hypothesis is clear.
Did the Trojan war really happened?
Well, people are still debating, because we still have no historical evidence that it happened. But there is evidence that a fight did break out. So we're still not sure about it.
What happens when rechargeable batteries get recharged?
They get recharged for another use! The electricity from the charge causes certain chemical reactions to take place which are in reverse of what happened as the battery drained. Then the process can happen all over again.
