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3 years ago

11.

Chemistry

1 answer:

andrew11 [14]3 years ago

6 0

B. Groups (families)

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Point E is located at (-2, 2) and point F is located at (4-6). What is the distance between

Flauer [41]

Answer:

Explanation:

Given endpoints:

E (-2,2) and F(4, -6)

To find the distance between two points;

Use the expression below;

D = $\sqrt{(y_{2} - y_{1} )^{2} + (x_{2} - x_{1})^{2} }$

x₁ = -2,

x₂ = 4

y₁ = 2

y₂ = -6

Insert the parameters and solve;

D = $\sqrt{(-6 - 2 )^{2} + (4 -+ 2)^{2} }$

D = $\sqrt{64+ 36 }$ = 10

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3 years ago

Water interacts with polar substances like –OH groups but not with non-polar substances like methyl (-CH3) or ethyl groups (-CH2

Otrada [13]

To answer this, we look at the polarities of these molecules given. A molecule is said to be polar when there is an unequal shraing of electrons the opposite is called nonpolar.
CH4 = nonpolar
CH3OH = polar
CH3 CH3 = nonpolar
CH3 CH2 CH2 OH = polar
CH3 CH2 CH2 CH2 CH2 CH3 = nonpolar

3 0

3 years ago

What size container is needed to hold 7.00 mol of a gas at 342 K and 255 kPa? *

ValentinkaMS [17]

PV = nRT

I only know the valeu of R is you're using atm, so convert kPa to atm.

1 atm = 101.325 kPa

2.52 atm = 255 kPa

2.52atm(x) = 7(.0821)(342)

2.52atm(x) = 196.5

x = 78

78 liters

3 0

3 years ago

Magnetism is an example of a property of what?

Setler79 [48]

Answer:

A) behavior

Explanation:

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3 years ago

(I will give a brainliest) State the relationship between phase changes and temperature

Alex73 [517]

Answer:

The relationship is the "variation of vapour pressure with temperature" or " the effect of vapour pressure on the melting and boiling points in a phase"

8 0

3 years ago