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serious [3.7K]
2 years ago
13

??? Ipc helppp pllzz

Chemistry
1 answer:
Umnica [9.8K]2 years ago
5 0
The correct answers are
-formation of a precipitate
-bubble formation
-color change
-temperature change
-odor formation

The only one that isn’t correct is change in state of matter. A change in a state of matter does not mean it’s a chemical change. For example, water boiling so it turns into gas is not a chemical change, and is a physical one. Also, water can freeze and turn into ice, which is also still a physical change. If something changes state of matter, it does not necessarily mean it’s a chemical change.
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enyata [817]

Answer:

Tryptophan is an essential amino acid.

5 0
3 years ago
Read 2 more answers
Jose times how long sugar takes to dissolve in warm water. he conducts four trials of his experiment. what should he conclude fr
mylen [45]

He can conclude that his experiment has very low precision.

<h3>What is Precision ?</h3>

Precision is defined as the degree of refinement with which an operation is performed or a measurement .

Precision is how close the exact answers are together.

As, the answers are increasing in time.

None of the answers are similar to one another.

Hence, He can conclude that his experiment has very low precision.

Learn more about Precision here ;

brainly.com/question/27845433

#SPJ1

7 0
2 years ago
Is fertilizer a mixture compound or element
egoroff_w [7]
I always thought it was a mixture but can also be a compound 

5 0
3 years ago
The blank of an element is the average mass of all isotopes of that element
Oxana [17]
Atomic mass is the answer 

if u hav any  more questions in chemistry ask me! I am very good at chemistry.
6 0
3 years ago
What is the name of the energy needed to change the structure of matter
anyanavicka [17]

Answer:

Heat fusion

Explanation:

The energy required to change a solid to a liquid is called the heat of fusion.

4 0
2 years ago
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