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
saw5 [17]
3 years ago
7

The heating curve of an ice-water mixture that is slowly heated to 125°C contains three sloped and two level portions. What do t

he two level portions in the graph represent?
Biology
2 answers:
Mice21 [21]3 years ago
8 0

Answer:

The answer is heating.

Explanation:

scZoUnD [109]3 years ago
4 0
The 2 level portion in the graph represents the changing of state.

Every substance has internal energy, which includes kinetic energy and potential energy. Kinetic energy means the temperature, and the potential energy means the bondings or attractions.

When a substance is heated up, they first increase their temperature as the same state. For example, the ice starts at - 5 °C, they won't start melting immediately as they're not at their melting point yet. Instead, they first absorb heat and increase their temperature to 0°C. This is same for when water increase their temperature until their boiling point. Their kinetic energy is increasing, but potential energy is unchanged as they stay at the same state. That's why the slope is increasing.

However, but once the ice or water has reached their melting or boiling point, they have to go through a state change. During that time, they do not increase their temperature (K.E. unchanged) . Instead, the heat they absorbed is used to increase the potential energy to break the bonds and turn into another state. The heat absorbed is called latent heat.

This explains why in the graph, there's 2 level portions, as the substance is going through a state change and increasing their potential energy instead of their kinetic energy (temperature)
You might be interested in
Which one of the following will increase the size of a population?
Sonbull [250]
C. Decreased death rate is the answer
6 0
3 years ago
Write a hypothesis that explains how the Hawaiian island chain formed. Explain your hypothesis. Describe how your data supports,
guapka [62]

Answer:

My hypothesis is that the Hawaiian Island chain was formed by a hot spot in the middle of the Pacific Plate. While the hot spot itself is fixed, the plate is moving. My data supports my hypothesis because as the plate moved over the hot spot, the islands that make up the Hawaiian Island chain were formed.

7 0
3 years ago
Read 2 more answers
1. What animals do you think<br> Darwin was describing in his<br> entry?
AveGali [126]
Is there a picture to go with this?
7 0
3 years ago
Read 2 more answers
Meiosis produces which cell type?
atroni [7]
A simple way to remember the difference between mitosis and meiosis is that <u>Mitos</u>is produces cells found in <u>my toes</u> and the rest of your body cells. Meiosis creates sex cells for the purpose of reproduction. 
5 0
3 years ago
Bone and blood cells are considered?
GenaCL600 [577]
<span>specialized cells, thats what bone and blood cells are considered </span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • The postpartum nurse teaches a mother how to give a bath to the newborn infant and observes the mother performing the procedure.
    15·1 answer
  • In a study of genetic variation of the Graceland gene, a researcher finds that there are two alleles in a population. In a large
    13·1 answer
  • Which statement best describes the similarity between the recessive allele and the dominant allele?
    6·1 answer
  • What causes the refractory period in sodium channels after an action potential has been initiated? The sodium channel CANNOT be
    15·1 answer
  • Hello can anyone help on this? Thank you If you can.
    14·1 answer
  • Biologists can grow specific plants to detoxify an area contaminated with heavy-metal pollution using the method of . To rid an
    13·2 answers
  • Which of the following is not a possible consequence of the introduction of invasive species? a. changes to the existing gene po
    15·2 answers
  • Each of the following about cells and the cell cycle is true except
    8·2 answers
  • 5. Once the caffeine is removed from the plant
    15·1 answer
  • In order to develop good sleep hygiene, one should strive to do all of the following except __________. A. Exercise right before
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!