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kramer
3 years ago
7

How did the metric system came to existence? (explain how it started until it is being implemented)

Chemistry
1 answer:
ozzi3 years ago
3 0
Ever heard of this thing called... RESEARCH!? You might want to try it buddy. Sayounara.
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Which change can be easily be reversed? question 23 options: both a physical and chemical change chemical change physical change
givi [52]
Physical change .. you cannot undo chemical ... physical is like bending , shattering a mirror , denting something ..
chemical would be rust or something .

6 0
3 years ago
How are the African plate and south American plate moving relative to each other
Kamila [148]
They are moving away from each other
6 0
3 years ago
What portion of your salt solution in ice water system is: a. A mixture? b. A solution?
ahrayia [7]

The salt and water are a homogeneous mixture but when salt dissolves in the water system is called a solution of salt and water.

<h3>What is a mixture? </h3>

A mixture is defined as the combination of two or more substances that are not chemically bonded together.

There are two types of mixture which include:

  • Homogeneous (uniform composition) and

  • Heterogeneous mixtures

When salt is added to the ice water system, it lowers the freezing point of the ice water thereby forming a homogenous mixture of water and salt.

The dissolution of salt in ice water leads to the formation of salt and water solution.

Learn more about mixture here:

brainly.com/question/10677519

8 0
2 years ago
Explain why the electron configuration of 2-3-1 represents an atom in an excited state?
baherus [9]

Answer:

See explanation

Explanation:

If we look at the electron configuration closely, we will discover that the element must have had a ground state electron configuration of 2,4.

This is because, the innermost shell usually holds two electrons while the outer shells hold eight electrons each. The four electrons must be accommodated in the second shell in the ground state configuration of the compound.

However, when the atom is excited, one electron from this shell may move to the third shell to give the excited state configuration 2-3-1 as shown in the question.

6 0
3 years ago
What mass of NaCl can be produced by the reaction of 0.75 mole Cl2? <br> 2Na+Cl2—&gt; 2NaCl
Papessa [141]
The correct answer is D. 88 g

Good Luck!! Hope this helps!! :)
8 0
3 years ago
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