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
mars1129 [50]
3 years ago
10

Sandpaper is a type of rough material that is rubbed on other surfaces to make them smoother. Ms. Fonger is rubbing a piece of s

andpaper on wood that will be used to make a table. What kind of energy is being produced?
Chemistry
1 answer:
torisob [31]3 years ago
3 0

Answer:

Heat energy is being produced due to friction.

You might be interested in
What are the effects of convection currents in our surroundings?
miskamm [114]
Land breeze sea breeze,ventilation,etc
8 0
4 years ago
The overall process of photosynthesis has the balanced chemical equation 6CO2 + 6H2O --> C6H12O6 + 6O2. What does this tell y
torisob [31]

Answer:

Equal parts are needed to make glucose and oxygen. The excess oxygen is released into the air

Explanation:

This equation explains why having plants in your house is good.

7 0
3 years ago
A piece of radioactive radium is added to water.
Dafna1 [17]

Ra(s) + H₂O(g) → Ra(OH)₂ (aq) + H₂ (g)

<u>Explanation:</u>

Radioactive radium reacts easily with water produces radium hydroxide and hydrogen gas. In this reaction, Radium is sin solid state reacts with the water in the gaseous state to produces aqueous radium hydroxide and the hydrogen gas. This reaction occurs rapidly than in Barium. We can write this reaction as,

Radium(s) + water(g) → Radium hydroxide (aq) + Hydrogen (gas)

This can be represented using the symbols as,

Ra(s) + H₂O(g) → Ra(OH)₂ (aq) + H₂ (g)

Thus the above process can be expressed with such chemical reaction.

4 0
4 years ago
How did Niels Bohr describe electrons in his atomic model? Their energies can have any values. Their exact positions cannot be k
Fed [463]

Answer is: They orbit the central nucleus in discrete paths.

According to the Bohr model of the atom:

1. Electrons orbit the nucleus in orbits that have a set size and energy.

2. Energy levels of electrons are discrete (certain discrete values of energy).

3. Electrons can jump from one energy level to another, absorbing or emitting electromagnetic radiation with a frequency ν (energy difference of the levels).

5 0
3 years ago
Read 2 more answers
Which structural zones exist within the core compositional zone?
Art [367]

The Earth's structural zones (S-Zones) are the lithosphere, asthenosphere, mesosphere, inner core, and outer core.

C-Zone                 S-Zone                  What are they like?

Core                      Inner Core           Found about 2,900 kilometers below

the Earth's surface. It is about 2,300 kilometers thick

6 0
3 years ago
Other questions:
  • Provide a brief theory which explains the application of polymerization reactions to everyday life.
    14·1 answer
  • SECTION REVIEW
    13·1 answer
  • What temperature is represented by the image of the thermometer
    11·1 answer
  • Draw the mechanism of polymerization of propylene with benzoyl peroxide. Show chemical structures and arrows and remember that r
    13·1 answer
  • What is the pH of 0.166 M triethylammonium chloride, (C2H5)3NHCl. The Kb of triethylamine, (C2H5)3N, is 5.2 x 10-4.?
    9·1 answer
  • 3. Which element is more reactive?
    10·2 answers
  • WILL GIVE BRAINLIEST TO WHOEVER ACTUALLY GIVES RIGHT ANSWER. PLZ Which system of the human body allows oxygen to be dispersed to
    11·2 answers
  • What volume of a 5.00M solution of hydrochloric acid contains 8.00mol of HCl?
    12·1 answer
  • Hi can someone help me with these 2 :)
    5·1 answer
  • How do you count the number of atoms in a chemical formula?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!