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3 years ago

I NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!!1

Chemistry

1 answer:

Karolina [17]3 years ago

6 0

Answer:

true im pretttyyy sure

Explanation:

bcuz the stronger the intermolecular forces the higher the boiling point :3

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The monomers of nucleic acids consist of a phosphate group a five-carbon sugar and a

sergeinik [125]

Nitrogenous base. These are Adenine (A), Glycine (G), Thymine (T) or Uracil (U), and Cytosine (C).

A always pairs T (or U in RNA)
G always pairs with C

Hope I helped! xx

7 0

4 years ago

I will give brainliest

KonstantinChe [14]

Answer:

a martin year is as twice as long

Explanation:

i think

4 0

3 years ago

Read 2 more answers

The normal boiling point of liquid ethyl acetate is 350 K. Assuming that its molar heat of vaporization is constant at 34.4 kJ/m

Roman55 [17]

Answer:

337.22 K

Explanation:

Given that:

P₁ = 1 atm

T₁ = 350 K

P₂ = 0.639 atm

T₂ = ??? (unknown)

R(rate constant) = 8.34 J k⁻¹ mol⁻¹

Using Clausius-Clapeyron equation, we can determine the final boiling point of the process.

Clausius-Clapeyron equation can be written as:

$In\frac{P_2}{P_1}=\frac{\delta H_{vap}}{R}[\frac{T_2-T_1}{T_2T_1}]$

Substituting our values given; we have:

$In\frac{0.639}{1}=(\frac{34.4*10^3J/mol}{8.314 J K^{-1}mol^{-1}})[\frac{T_2-350}{350T_2}]$

$In({0.639})=(\frac{34.4*10^3}{8.314K^{-1}})[\frac{T_2-350}{350T_2}]$

$- 0.4479 = 41317.599 [\frac{T_2-350}{350T_2} ]K$

$-\frac{0.4479}{4137.599} = [\frac{T_2-350}{350T_2} ]$

$- 1.0825118*10^{-4} = [\frac{T_2-350}{350T_2} ]$

$- 1.0825118*10^{-4} *350T_2 =T_2-350$

$- 0.037889T_2=T_2-350$

$350 = 0.03789T_2+T_2$

$350 =1.03789T_2$

$T_2= \frac{350}{1.03789}$

$T_2 = 337.22K$

∴ the boiling point of CH3COOC2H5 when the external pressure is 0.639 atm is <u>337.22</u> K.

5 0

3 years ago

This is the last one thank you to anyone who helps

Mice21 [21]

Chromium-58 Carbon-16 Nitrogen-15 Sulfer-25 Sodium-20 Selenium-80

protons:24 6 7 16 11 34

neutrons:34 10 8 7 1 46

electrons:24 6 7 16 11 34

Explanation:

5 0

3 years ago

Read 2 more answers

Please help!!!!

Nat2105 [25]

Answer:

When an atom gains or loses energy, the energy of an electron can change.

An electron in an atom can move from one energy level to another when the atom gains or loses energy.

Explanation:

The possible energies that electrons in an atom

can have are called energy levels.

• An electron cannot exist between energy levels.

https://1.cdn.edl.io/tTlW7xRtvD62xSe7RcZlJr7kSR7XsL93akcgJkbGJBNNcpwY.pdf

*this link can also help* brainly ist plz

8 0

3 years ago

Read 2 more answers