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Paraphin [41]
3 years ago
11

Science fair ideas? please help

Chemistry
2 answers:
egoroff_w [7]3 years ago
8 0
You can Maybe do a volcano?
Neko [114]3 years ago
7 0
When I was in elementary school, I grew several pea plants and watered them with different liquids and measured their growth.  
This is a good experiment because the plants were easy to care for, it provided a lot of pictures which made it easy to present, and it required minimal research. 

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Definition of contourology
agasfer [191]
Science of, or study of contours, or the lines outlining a scene, drawing, etc.
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3 years ago
a. How can one tell if a chemical reaction is balanced? (.5 point) b. What information does a complete ionic equation give that
evablogger [386]

Answer:

I think it's C

Explanation:

i think its c b3cause when you guess c always feels right

8 0
2 years ago
Propenoic acid is an unsaturated carboxylic acid. Describe how you could show
Anestetic [448]

Answer:

Tests for unsaturation involves addition across the multiple bonds in the unsaturated compound.

Explanation:

In organic chemistry, we define an unsaturated compound as any compound that contains a double or triple bond. These multiple bonds are also known as pi bonds.

There are two major tests for unsaturation which shall both be discussed here.

The first test for unsaturation is by the use of bromine water. The unknown sample is passed through a solution of bromine water which normally appears reddish brown. The bromine water becomes decolorized due to addition of bromine across the multiple bond. This is a standard test for unsaturation.

Secondly, unsaturated compounds decoulourize a solution of potassium permanganate when passed through it. This alone can not be used as a distinctive test for unsaturation.

Propenoic acid will give a positive test to the both reagents showing that it contains multiple bonds, in this particular instance, a double bond.

4 0
3 years ago
Question 2 (1 point)
kondor19780726 [428]

Answer:

D. A pond freezing over is not a chemical reaction, it is a physical reaction.

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3 years ago
Emotions are perceived exactly the same way by all people. Please select the best answer from the choices provided T F
Ksju [112]
False - everyone perceives things differently based on experiences, thoughts and their own emotions. :)
4 0
3 years ago
Read 2 more answers
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