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max2010maxim [7]
3 years ago
15

Which choice can be classified as a pure substance?

Chemistry
2 answers:
Lyrx [107]3 years ago
8 0

Answer:

Salt

Explanation:

Pure substances are those that contain atoms or molecules of the same type. For eg: elements are pure (gold, hydrogen etcl.) and compounds (such as water, sodium chloride, etc.), etc.

Rest of choice are impure because they contain a mixture of different things, like pie has eggs, or all sorts of other molecules, salt water has water and salt molecules, and iced tea has water and other molecules associated with tea.

pentagon [3]3 years ago
3 0

Answer:

Salt

Explanation:

It is because it has a defined composition.

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2 Na + 1 Cl2 → 2 Naci<br> How many grams of NaCl are created from 23,2 grams Cl2?
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37 grams of NaCl (when I mean equivalent I mean the ratio of the equation is 1:2 for moles or Cl2 and NaCl

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2 years ago
Based on these ideas, what are the pro's and con's for both Sexual Reproduction and Asexual reproduction?
Svetradugi [14.3K]
Asexual
Pro:
1. inexpensive to make offspring (usually make a lot at a time and not invest a lot of time in raising them).
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Con:
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Sexual:
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Cons:
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Hope this helps you.
6 0
3 years ago
The number of protons in an atom is called?
Serhud [2]
The thing that it is called is it is called the atomic number of the thing
3 0
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Tems11 [23]

Same number of valence electrons

Explanation:

Two elements posses similar chemical properties if they have the same number of valence electrons.

Chemical properties of any substance is determined by the number of valence electrons it possesses in its outer most shell.

Elements use their valence electrons to form chemical bonds with one another.

Elements with the same number of valence electrons will chemically combine the same way.

This is why elements in the same group on the periodic table have the same chemical properties.

learn more:

Chemical properties brainly.com/question/2376134

#learnwithBrainly

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