Plz help me with one thing plz.
Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Drag and drop each item into the correct column. Order does not matter.
Do you know what a chemical reaction is?
no sorry
Chemical : Car rust color changing a white cloudy substance a candle No Evidence : everything else
No problem :) A chemical reaction is what happens when one substance comes into contact with another, and causes the other (or both) to change.
ya DangerousJesse
This is incorrect :)
me?
what is
Yes. Now, Tester, pick one out of all of these that changes chemically because it came into contact with something else.
Yellow and blue paints mixed together?
Hint: you can add energy to something and change its form to cause a reaction.
The key word in that example: mixed
This is a mixture, it did not cause a chemical reaction, only mixed the two substances.
Try again :) Go ahead and put that in the non-chemical reaction column.
so it is not a chemical ( and not to be pushy can we go a lil faster i am on a deadline )
No, it's not a chemical reaction. Which of these involve producing something new, such as light or carbon?
And which of these use energy to change something into a gas or liquid?
a candle being lit and water boiling
Yes! Those are two. Now, does melting something involve using energy to change the form of something?
just one sec i am have to use the restroom i will be back in a second
okay sorry
@DangerousJesse
plz help me i am back now
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