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zzz [600]
3 years ago
10

When floral design first emerged as an art form, which technique was emphasized?

Chemistry
1 answer:
olasank [31]3 years ago
8 0
Using flowers in their natural state and shape
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You would expect a phosphorous-chlorine bond to be
zlopas [31]

Answer: option 4. polar, with the chlorine end having a partial negative charge.


Explanation:


1) A polar bond is a covalent bond in which the electrons are pulled more strongly by one of the atoms and then they are not evely distributed between the two linked atoms.


2) That happens when the two atoms have diferent electronegativities.


3) As the per periodic table trend of the electronegativity, you can predict that the electronetativity of Cl is higher than that of P.


In fact, in a table of electronegativities you can find that the electronegativity of Cl is 3.16 while the electronegativity of P is 2.19.


This is a 3.16 - 2.19 = 0.97 difference.


As explained, that difference means that Cl will pull the electrons more strongly resulting if a partial negative charge on Cl and a partial positive charge on P, i.e. a polar bond.

4 0
3 years ago
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What kind of substance is rust​
Sauron [17]
Iron oxide!!!!!!!!!!!!!!!!!!!!
6 0
3 years ago
1. Write the electron configuration for Al (aluminum). Then, write the noble gas configuration. Finally, draw
Zanzabum

Answer:

[Ne] 3s² 3p¹

1s2 2s2 2p6 3s2 3p1

Explanation:

3 0
3 years ago
Match each decimal number to the correct scientific notation. 30,700 0.000307 0.00000307 3,070,000 3.07 × 10-6 arrowRight 3.07 ×
ss7ja [257]

Answer:

3.07 × 10^4=30,700

3.07 × 10^-4=0.000307

3.07 × 10^-6=0.00000307

3.07 × 10^6=3,070,000

Explanation:

8 0
3 years ago
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Calculate the sodium ion concentration when 70.0 mL of 3.0
otez555 [7]

Answer:

4.5 M Na+

Explanation:

Multiply the molarity by the volume of the solution to get moles.

Note that there are TWO sodium ions in sodium carbonate, therefore the first-mole calculation must be multiplied by two.

Since molarity is defined as moles of ions/liters of solution, the final molarity will be the sum of the calculated moles divided by the sum of the liters of solution.

Hope this helps :)

7 0
2 years ago
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