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masha68 [24]
3 years ago
14

3 Pieces of Key Information elements, compounds, mixtures also state a real world example of elements, compounds, mixtures and l

astly why is elements, compounds, mixtures are important
Chemistry
1 answer:
Margarita [4]3 years ago
8 0

Answer:

Element and compounds are the pure substances but mixture is not a pure substance.

Explanation:

Element and compounds are the pure substances in which element comprise of only one atom while compound is formed by the chemical combination of more than one element in a fixed ratio by mass while mixture is also made up of more that one substances but they are combine physically not chemically. Elements, compounds, mixtures are very important because all the materials we used in our daily life are formed from elements, compounds and mixtures.

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Draw every stereoisomer for 1-bromo-2-chloro-1,2-difluorocyclopentane. Use wedge-and-dash bonds for the substituent groups, and
Flauer [41]

Answer:

Explanation:

The objective here is mainly drawing the diagrams of every stereoisomer for 1-bromo-2-chloro-1,2-difluorocyclopentane.

Stereoisomerism is the difference of the spatial arrangement of atoms in a molecule or a compound with the same molecular formula.

For 1-bromo-2-chloro-1,2-difluorocyclopentane.

We have the stereoisomers as follows:

(1R,2S)-1-bromo-2-chloro-1,2-difluorocyclopentane.

(1S,2R)-1-bromo-2-chloro-1,2-difluorocyclopentane.

(1S,1S)-1-bromo-2-chloro-1,2-difluorocyclopentane.

(1R,1R)-1-bromo-2-chloro-1,2-difluorocyclopentane.

Their diagrams are drawn and shown in the attached file below in the order with which they are listed above.

5 0
3 years ago
Which mixture is heterogeneous
scZoUnD [109]

Answer:

A

Explanation:

4 0
3 years ago
What is the answer to this problem
Akimi4 [234]

Answer:

380.5g/mol

Explanation:

The molar mass of a compound can be obtained by adding the molar masses of the elements present in the compound.

The molar mass of Cu3(PO4)2 can be obtained as follow:

Molar Mass of Cu = 63.5g/mol

Molar Mass of P = 31g/mol

Molar Mass of O = 16g/mol

The molar mass of Cu3(PO4)2 = (63.5x3) + 2[31 + (16x4)] = 190.5 + 2[31 + 64] = 190.5 + 2[95] = 190.5 + 190 = 380.5g/mol

4 0
4 years ago
Imagine that A and B are cations and X, Y, and Z are anions, and that the following reactions occur:
Gekata [30.6K]
<span>AX(aq)+BY(aq)→no precipitate
AX(aq)+BZ(aq)→precipitate
this two equations imply
</span>
AX(aq) is soluble and <span>BY(aq) is insoluble

the answer is
</span><span>E. BY</span>
5 0
4 years ago
Chemistry test!!! no fake answers please and if you can explain then do it because I need all the help I can get!
ivanzaharov [21]

Answer:

(−ΔH°1)+12(−ΔH°2)+(ΔH°3)+(ΔH°4)

I hope this helps you out!! :)

8 0
3 years ago
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