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Lynna [10]
3 years ago
7

Difference between Physical and chemical changes At least six examples for each type of change

Chemistry
2 answers:
Aleksandr [31]3 years ago
7 0
Physical changes involve a new form or shape of matter
Tju [1.3M]3 years ago
4 0
Physical<span> changes involve a new </span>form<span> or shape of matter, 
</span>

Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical<span> substances.</span>
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4 years ago
Name at least two benefits of using models in science.
aliina [53]

Explanation:

1) it gives you a visual of what you will be doing

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3 years ago
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The molecular weight (MW) of CuSO4 is 250g/mol. How many grams of CuSO4 are needed to make a 10 ml solution that has a molarity
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8 0
3 years ago
what is the difference between the number of electrons in an atom of selenium and the number of electrons in an atom of aluminum
igomit [66]

Answer:

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The atomic number of Aluminium is 13. This means that Aluminium has 13 electrons.

Hence, there is a difference of 21 between the number of electrons in an atom of selenium and the number of electrons in an atom of aluminium.

Selenium has 6 electrons in it's outer most shell whereas aluminium has 3 electrons in its outer most shell. As a result, aluminium will have a greater tendency to lose one of its outer most electrons to become stable.

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3 years ago
Tell how you could distinguish between the pair of compounds by their infrared spectra: compound a ch3ch2ch2n(ch3)2 and compound
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6 0
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