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galben [10]
3 years ago
15

SEP Engage in Argument A classmate claims that state of matter is an extensive property because it can vary with temperature. Fo

r example, hydrogen changes into a liquid at very low temperatures and high pressure, while iron can melt into a liquid at very high temperatures. Do you agree with the classmate? Write an argument to support your position.
Chemistry
1 answer:
Andrews [41]3 years ago
4 0

Answer: I agree with the student because in the question prior to this One question stated thatExtensive properties very with the amount of matter ina sample, so yes i agree.

Explanation:

Esther Kim
2 years ago
Thank you for the answer, but can I have an explanation.
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Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 6.80 g of lauryl alco
natka813 [3]

Answer:

The approximate molar mass of lauryl alcohol is 174.08 g/m

Explanation:

An excersise to apply the colligative property of Freezing-point depression.

This is the formula: ΔT = Kf . m

First of all, think the T° of fusion of benzene → 5.5°C

ΔT = T° pure solvent - T° fusion solution

Kf for benzene: 5.12 °C/m

5.5°C - 4.5°C = 5.12 °C /m  . m

1°C /  5.12 m /°C = m

0.195 m = molality

This moles of lauryl alcohol, solute, are in 1 kg of benzene, solvent.

I have to find out in 0.2 kg.

1 kg sv ____ 0.195 moles solute

0.2 kg sv ____ (0.195 . 0.2)/1 = 0.039 moles solute

The mass for these moles is 6.80 g, so if I want to know the molar mass, I have to divide mass / moles

6.80 g/ 0.039 moles = 174.08 g/m

5 0
3 years ago
Which type of bonding is found in all molecular substances?
Dmitrij [34]
The answer is covalent bonding. Molecular compounds are made of 2 or more nonmetals, and are therefore covalent. That is why another name for "molecular compound" is "covalent compound".
Answer: (1) covalent bonding

Hope this helped!! :D

4 0
3 years ago
Read 2 more answers
Calculate the mass percent (m/m) of a solution prepared by dissolving 45.09 g of NaCl in 174.9 g of H2O.
inysia [295]

Answer:

20.3 %  NaCl

Explanation:

Given data:

Mass of solute = 45.09 g

Mass of solvent = 174.9 g

Mass percent of solution = ?

Solution:

Mass of solution = 45.09 g + 174.9 g

Mass of solution = 220 g

The solute in 220 g is 45.09 g

220 g = 2.22 × 45.09

In 100 g solution amount of solute:

45.09 g/2.22 = 20.3 g

Thus m/m% = 20.3 %  NaCl

5 0
3 years ago
What liquid is got from copper ii and Ammonia gas?​
11111nata11111 [884]

Answer:

deep blue solution of tetramminecopper [Cu(NH3)4]2+ complex ion.

Explanation:

6 0
2 years ago
Which of the following best describes an atomic number? An element's identity is defined by its atomic number; this means it rep
kompoz [17]
It's C, the amount of protons in the nucleus of each atom :)
4 0
3 years ago
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