1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SSSSS [86.1K]
3 years ago
6

Which of the following processes absorbs energy? A) condensation of water on a wind shield of a car B) formation of copperC) bal

l rollinflown a hill D) formation of ice from liquid water
E) oxide from copper and oxygen
Chemistry
1 answer:
Alecsey [184]3 years ago
4 0

Answer:

C) ball rollinflown a hill

Explanation:

The question asks to  identify the endothermic process in the list of options. By way of elimination, we have;

A) condensation of water on a wind shield of a car

Condensation is an exothermic process. That is, heat is given out as the gases change into the liquid state of matter.

B) formation of copper

This is an exothermic process. Capture of electrons by a cation is always exothermic.

C) ball rollinflown a hill

This is the correct option. Energy is absorbed by the ball as it moves on the hill

D) formation of ice from liquid water

Freezing is an example of exothermic reaction. Heat is given off to the surroundings.

E) oxide from copper and oxygen

Formation of metal oxides and most reactions involving oxygen are exothermic reactions,

You might be interested in
How do you calculate metal density?
nekit [7.7K]

Answer:

You can divide the mass by the volume to calculate the density of the metal

Explanation:

7 0
2 years ago
How does heat affect a water droplet's state of matter
Olegator [25]

Answer:

Explanation:

A substance with a high specific heat, such as the water in Figure 9, heats up and cools down slowly because a much larger quantity of heat is required to cause its temperature to rise or fall by the same amount. Matter can change from one state to another when thermal energy is absorbed or released.

7 0
4 years ago
Why is the melting point of a network solid so high? How is this related to what a network solid is?
Alexxandr [17]
I believe that the answer to the question provided above is that molecules in solid are compact and are connected. It requires huge energy to move it, thus requires high temperature.
Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.
4 0
3 years ago
(a) What characteristic functional group do you expect to see in the IR spectrum, that is indicative of eugenol? (b) What wavenu
Darina [25.2K]

Answer:

a) The functional group that will be evident in the IR spectrum is the OH group.

b) OH group appears between 3200-3600 cm⁻¹

c) An important impurity that have the same functional group is water.

Explanation:

Eugenol is a chemical substance that consist in a benzene that have in 1 an alcohol, in position 2 a methyl ether and in position 4 an 1-propene bonded by the terminal alkyl carbon.

a) Having this in mind, the functional group that will be evident in the IR spectrum is the OH group.

b) This OH group appears between 3200-3600 cm⁻¹

c) An important impurity that have the same functional group is water. When you have water in your sample a big signal will appear in this zone and it is possible that overlapes the OH signal of eugenol.

I hope it helps!

5 0
4 years ago
What term is best associated with protons or neutrons escaping to become more stable?
Gre4nikov [31]
The correct answer is C
3 0
3 years ago
Other questions:
  • What isotope has 13 protons and 14 neutrons? enter the name of the element followed by a hyphen and the mass number (e.g., urani
    8·1 answer
  • An unknown compound has the empirical formula CH2O and a molecular mass of 180 amu. What is the molecular formula of the compoun
    13·1 answer
  • Explain the difference between physical equilibrium and chemical equilibrium. Give two examples of each.
    7·1 answer
  • Hi, i need help.. please
    14·1 answer
  • A neutral atom contains 12 neutrons and 11 electrons. The number of protons in this atom is
    5·1 answer
  • What kind of reaction is this ? P+02
    7·1 answer
  • Write the names of the following covalent compounds: SiO2
    15·1 answer
  • You plan to use the water displacement method to
    13·1 answer
  • What are Ionic bonds?​
    9·2 answers
  • Which bond is the strongest CO <br> CF CN CC?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!