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alina1380 [7]
3 years ago
6

Which indicator most likely suggests that a chemical change is taking place? 1)change in size 2)change of color 3)change of stat

e 4)change in shape
Chemistry
2 answers:
Tresset [83]3 years ago
8 0

Out of the options, the best indicator is a color change since it is the only one that can't really be blamed on a physical change.  you will eventually notice that during qualitative labs and some quantitative labs, usually the thing that you are looking for is either color change or the production of a precipitate to indicate the presence of a chemical reaction  

vlabodo [156]3 years ago
3 0

The correct answer is 2) change of color

Explanation:

A chemical change occurs when a new substance is formed or the original substance changes its identity and composition due to a chemical reaction. This is the opposite of a physical change that modifies only physical properties such as state or shape. Moreover, a chemical reaction can be identified because if often leads to a change in color, odor, the formation of bubbles or temperature change. This implies the only one that suggests a chemical change is a change of color because this occurs if the composition of a substance or substances change.

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Hi friend
--------------
Your answer
---------------------

CH4

Number of molecules in one mole of CH4 = 6.022 × 10²² [Avogadro's constant ]

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So,
------

Number of moles of CH4 i=
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