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
sweet [91]
3 years ago
12

Nistu is cooking rice in a pot. When she leaves the pot on the stove for a while, the temperature of the rice increases. What ha

ppens to the molecules of the rice when the temperature of the rice increases?
Chemistry
2 answers:
77julia77 [94]3 years ago
7 0

Answer:

The energy of the molecules in the rice increases.

Explanation:

Mila [183]3 years ago
5 0

Answer:

Their average kinetic energy increases

Explanation:

The average kinetic energy of the rice molecules increases as the pot is left on the cooking stove.

Heat is transferred to the pot by conduction from the heat source. The heat is then transferred to the rice in the cooking pot by convection.

  • As the water in the pot heats up.
  • The rice gains thermal energy.
  • This causes the molecules of the rice particles to start vibrating.
  • As the molecules vibrate about their fixed position, their thermal energy continues to increase.
  • Therefore, the amount of heat absorbed by the rice increases with time and this actually cooks the food.
You might be interested in
Select the reason why two molecules of benzaldehyde cannot react via the aldol condensation.
Lesechka [4]
Benzaldehyde or C6H5CHO would not undergo the aldol condensation because it does not contain an alpha-hydrogen in its structure. Aldol condensation is a type of reaction that happens between an enolate and an aldehyde or ketone leading to a alkene that has a planar structure. The lack of an alpha-hydrogen would not allow for it to undergo such process since it cannot enolize. Benzaldehyde undergoes a nucleophilic reaction known as Claisen-Schmidt condensation. It has somehow same mechanism of the aldol reaction however, the nucleophilic attack on the carbonyl happens even without the alpha-hydrogen but with an enolate that is from a ketone.
4 0
3 years ago
When is work considered to be work?<br> (this is about force,work and energy)
n200080 [17]

Answer:

In summary, work is done when a force acts upon an object to cause a displacement. Three quantities must be known in order to calculate the amount of work. Those three quantities are force, displacement and the angle between the force and the displacement.

8 0
2 years ago
Electricity is the _of charged<br> particles.<br> A.movement<br> B. collection<br> C.build up
Vitek1552 [10]

Answer:

c

Explanation:

4 0
3 years ago
Calculate the percent composition by mass of iron in Fe(NO3)3
Dovator [93]

Answer:

It's 23.14 percent

Explanation:

First, the mass of all the elements are:

N = 14

O = 16

Fe = 56

In this molecule you have 3 atoms of N, and 9 atoms of O, so:

3•14 = 42

16•9 = 144

The whole mass of the molecule is:

56 + 42 + 144 = 242

242/100 = 2.42, so 1% is 2.42

56/2.42 = 23.14%

6 0
3 years ago
Andy puts some pieces of paper on a drum and then hits the drum with a drumstick. What observation supports the idea that sound
Shkiper50 [21]

Though she hits the drum, the papers on the drum also vibrate.

This is due to the fact that when she hits the drum, the shock waves created by the hitting travel through the skin of the drum and radiate outwards. When they encounter the papers,  some of this energy is transmitted to the papers and the papers also vibrate.


8 0
3 years ago
Read 2 more answers
Other questions:
  • Cars run on gasoline, where octane (C8H18) is the principle component. This combustion reaction is responsible for generating en
    13·1 answer
  • 1. If temperature is increased, the number of<br> collisions per second
    5·2 answers
  • How to find the value of the equilibrium
    6·1 answer
  • I need what kind of energy is number two
    10·2 answers
  • Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. How many grams of hydrogen are needed to react completely
    12·1 answer
  • Which of the following is a chemical change? A. soil drying as water evaporates B. a rock eroding as the wind removes particles
    11·2 answers
  • What is consciousness? ...
    10·1 answer
  • in an experiment 3.425g of lead oxide was reduced to form 3.105g of lead the empirical formula of the lead oxide is?​
    9·1 answer
  • Please help me with this in the picture I need 8 thing wrong and 8 what should they do right
    12·1 answer
  • What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!