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docker41 [41]
3 years ago
15

Please help me with the questions!

Chemistry
1 answer:
dsp733 years ago
5 0

Answer:

2500kg/m3

Explanation:

Mass=20g= 20×10^-3kg

Volume=8x10^-6m3

<h2>Now we know that Density = mass\volume</h2>

D= 20×10^-3/8×10^-6

=2500kg/m3

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Ion knoe Wdym by “be able to describ’ so ima put it in my own words idr lol:)

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I can explain how transferring kinetic energy in and out of a substance can cause a change

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A solid and a liquid are shaken together in a test tube to produce a milky mixture that eventually separates into a clear liquid
Svet_ta [14]
It is insoluble. Because one of the substances are polar and the other is non-polar.

7 0
3 years ago
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A polar covalent bond will form between which two atoms?
Alex_Xolod [135]

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

 

                Less than 0.4 then it is Non Polar Covalent

                

                Between 0.4 and 1.7 then it is Polar Covalent 

            

                Greater than 1.7 then it is Ionic

 

For Be and F,

                    E.N of Fluorine          =   3.98

                    E.N of Beryllium        =   1.57

                                                   ________

                    E.N Difference                2.41          (Ionic Bond)


For H and Cl,

                    E.N of Chorine           =   3.16

                    E.N of Hydrogen        =   2.20

                                                   ________

                    E.N Difference                0.96          (Polar Covalent Bond)


For Na and O,

                    E.N of Oxygen          =   3.44

                    E.N of Sodium          =   0.93

                                                       ________

                    E.N Difference                2.51          (Ionic Bond)


For F and F,

                    E.N of Fluorine          =   3.98

                    E.N of Fluorine          =   3.98

                                                        ________

                    E.N Difference                0.00         (Non-Polar Covalent Bond)

Result:

           A polar covalent bond is formed between Hydrogen and Chlorine atoms.

5 0
3 years ago
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3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!
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Answer:

BBB

Explanation:

8 0
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