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Kipish [7]
3 years ago
15

25 – 30 Apply the appropriate word to the definition indicated. Not all words will be used. 25. _____ Heat content of a system a

t constant pressure calorie (cal) 26. _____ Ability to do work Chemical Potential Energy 27. _____ Disorder Energy 28. _____ Energy of motion Enthalpy 29. _____ Study of energy changes that ocrrue during chemic reaction and changes in states. Entropy 30. _____ Amount of heat required to raise T of 1 g of pure water 1◦C Joule Kinetic energy Heat (q) Specific Heat Thermochemistry
Chemistry
1 answer:
masha68 [24]3 years ago
4 0
<span>25. _____ Heat content of a system at constant pressure calorie (cal) ---> Enthalpy

26. _____ Ability to do work Chemical ----> Energy

 27. _____ Disorder ----> Entropy

28. _____ Energy of motion ----> Kinetic energy

29. _____ Study of energy changes that ocrrue during chemic reaction and changes in states. ----> Thermochemestry

30. _____ Amount of heat required to raise T of 1 g of pure water 1◦C ----> Specific heat</span>
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4 0
3 years ago
What is the H+ concentration for an aqueous solution with pOH = 4.01 at 25 ∘C? Express your answer to two significant figures an
EleoNora [17]

I believe pH = -log[H+]

Also, 14 = pH + pOH

Therefore pH = 14 - pOH

pH = 14 - 4.01

pH = 9.99

9.99 = -log[H+]

Solve for H+

5 0
3 years ago
A balloon filled with 1.22 L of gas at 286 K is heated until the
TiliK225 [7]

Answer: 670K

Explanation:

Given that,

Original volume of gas V1 = 1.22 L

Original temperature T1 = 286 K

New volume V2 = 2.86 L

New temperature T2 = ?

Since volume and temperature are involved while pressure is constant, apply the formula for Charles law

V1/T1 = V2/T2

1.22 L/286 K = 2.86 L/ T2

Cross multiply

1.22 L x T2 = 286 K x 2.86 L

1.22T2 = 817.96

Divide both sides by 1.22

1.22T2/1.22 = 817.96/1.22

T2 = 670.459 K (Round to the nearest whole number as 670 K)

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4 0
3 years ago
Define electronegativity. Where on the periodic table is the highest? Explain why this is the case.
geniusboy [140]

Answer:

Explanation:

Electronegativity is a measure of the ability of an atom to attract the electrons when the atom is part of a compound. Electronegativity values generally increase from left to right across the periodic table. The highest electronegativity value is for fluorine.

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3 years ago
Hydrogen bonding is most often seen _____. see concept 2.3 (page 38) view available hint(s) hydrogen bonding is most often seen
Evgesh-ka [11]
<h3><u>Answer;</u></h3>

When hydrogen is covalently bonded to an electronegative atom

<h3><u>Explanation;</u></h3>
  • Hydrogen bonding is a special type of dipole-dipole attraction between molecules. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom.
  • Highly electronegative atoms attract shared electrons more strongly than hydrogen does, resulting in a slight positive charge on the hydrogen atom. The slightly positive hydrogen atom is then attracted to another electronegative atom, forming a hydrogen bond.

3 0
3 years ago
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