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vagabundo [1.1K]
3 years ago
10

Which statement best explains why water has a higher boiling point than ethane?

Chemistry
2 answers:
Julli [10]3 years ago
4 0

Answer:

Ethane molecules have no hydrogen bonds and need less energy to separate.

Explanation:

Ethane: has no hydrogen bonding, it has low melting, boiling points, and is a gas at room temperature.

Water: has strong hydrogen bonding between H and O, has relatively high melting and boiling points.

rewona [7]3 years ago
3 0

Answer:

The ans is D

Explanation:

I just took the quiz on edg

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think about items you or your family bought over the last week. what kind of packaging was around those items? How did you dispo
Sunny_sXe [5.5K]

Answer:

its not that hard, i mean its a question that you kinda have to answer yourself. its basically asking you to write down the items that your family brought over the last week. just think of the things that your parents or family brought home. then you have to tell them what packaging was around the items, for example, plastic. and then etc.

Hope that helps you!

7 0
3 years ago
If 5.0 kJ of energy is added to a 15.5-g sample of water at 10.°C, the water is Group of answer choices
BaLLatris [955]

Answer:

The water is completely vaporized at this stage.

Explanation:

The complete question is

If 5.0 kJ of energy is added to a 15.5-g sample of water at 10.°C, the water is

-boiling

-completely vaporized

-frozen solid

-decomposed

-still a liquid

Energy added = 50 kJ = 50000 J

mass of water = 15.5 g = 0.0155 kg

temperature of water = 10 °C

We know that the energy posses by a mass of water at a given temperature is given as

H = mcT

where H is the energy possessed by the mass of water

m is the mass of the water

c is the specific heat capacity of water = 4200 J/ kg- °C

T is the temperature of the water

substituting values, the energy of this amount of water is

H = 0.0155 x 4200 x 10 = 651 J

If 50 kJ is added to the water, the energy increases to

50000 J + 651 J = 50651 J

Temperature of this water at this stage will be gotten from

H = mcT

we solve for the new temperature

50651 = 0.0155 x 4200 x T

50651 = 65.1 x T

T = 50651/65.1 = 778.05 °C

This temperature is well over 100 °C, which is the vaporization temperature of water, but less than 3000 °C for its molecules to decompose.

3 0
3 years ago
How do the test variables (independent variables) and outcome variables (dependent variables) in an experiment compare?
Sloan [31]

Answer/Explanation:

A) The independent(test) variable controls the dependent variable. A good way to think about this is that the independent variable has nothing that effects itself. The dependent variable is 'dependent' or reliant on the independent variable.

4 0
3 years ago
Read 2 more answers
Pls Help! 100 Points!!!!!
Katen [24]

Answer:

The answer is c,F has a smaller radius than F− because F− has an additional energy shell.

Explanation:

if correct mark brainliest

6 0
2 years ago
Read 2 more answers
What is the experimental molar heat of combustion?
IRISSAK [1]

Explanation:

Molar heat combustion:

Molar heat of combustion is defined as heat released when 1 mole of substance is burnt under the action of oxygen gas to give water and carbon-dioxide.It is measured in kiloJoules (kJ) per mole.This heat of energy can be positive or negative.

  • If the enthalpy is positive than the reaction is said to be an endothermic reaction.
  • If the enthalpy is negative than the reaction is said to be an exothermic reaction.
3 0
3 years ago
Read 2 more answers
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