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
Igoryamba
3 years ago
8

Waters states of matter include steam liquid water and ice. What about water is the same in the states? What can you conclude ab

out what changes and what does not change during a change of state?
Chemistry
1 answer:
julia-pushkina [17]3 years ago
5 0
This lesson is the first in a three-part series that addresses a concept that is central to the understanding of the water cycle—that water is able to take many forms but is still water. This series of lessons is designed to prepare students to understand that most substances may exist as solids, liquids, or gases depending on the temperature, pressure, and nature of that substance. This knowledge is critical to understanding that water in our world is constantly cycling as a solid, liquid, or gas.

In these lessons, students will observe, measure, and describe water as it changes state. It is important to note that students at this level "...should become familiar with the freezing of water and melting of ice (with no change in weight), the disappearance of wetness into the air, and the appearance of water on cold surfaces. Evaporation and condensation will mean nothing different from disappearance and appearance, perhaps for several years, until students begin to understand that the evaporated water is still present in the form of invisibly small molecules." (Benchmarks for Science Literacy<span>, </span>pp. 66-67.)

In this lesson, students explore how water can change from a solid to a liquid and then back again.

<span>In </span>Water 2: Disappearing Water, students will focus on the concept that water can go back and forth from one form to another and the amount of water will remain the same.

Water 3: Melting and Freezing<span> allows students to investigate what happens to the amount of different substances as they change from a solid to a liquid or a liquid to a solid.</span>
You might be interested in
How many moles of ethyl alcohol, C2H6O, are in a 27.0g sample
Marianna [84]
C=12 g/mole
H=1 g/mole
O=16 g/mole
2(12)+6(1)+16=46 g/mole C2H6O
46 g/27 g =1 mole/x mole⇒ x≈0.58
the answer is about 0.58. hope helped ;)
3 0
3 years ago
What is your experience about water pollution​
vovikov84 [41]

Answer:

water pollution is a process in which water gets polluted due to discharge of city sewage and industrial waste. I was suffering through the water born disease when I drank the contaminated water. The sources of water becomes dirty. It makes environment unbalanced. People suffer from different water born disease when they drink polluted water.

7 0
2 years ago
What distinguishes science from other disciplines that do not use scientific methods?
rewona [7]

Correct Answer: A. Science relies on observation, measurement, and experimentation.

4 0
3 years ago
What is the hybridization of the nitrogen atom in ammonia?
dybincka [34]

The nitrogen atom in NH3 is sp3 hybridized. ... In NH3 molecule, three of the sp3 orbitals are used to formbonds to the three hydrogen atoms and the fourth sp3 orbital is used to hold the lone pair. and is sometimes called a non-bonding pair.

6 0
3 years ago
Help please
andrew11 [14]

Answer:

K2Cr2O7

Explanation:

Solubility refers to the amount of substance that dissolves in a given mass or volume of solvent. There are several units of solubility applicable in different areas.

Solubility is dependent on temperature. The solubility curve is a graphical representation of the dependence of solubility on temperature for different chemical species.

If we study the solubility curve closely, we will see that K2Cr2O7 has the highest solubility at 100°C. This means that if the trends continue, this substance will also have the highest solubility at 120°C.

6 0
2 years ago
Read 2 more answers
Other questions:
  • If 0.45 mols of MnO2 can react with 0.28 moles of HCl, how many moles of Cl2 could be produced
    10·1 answer
  • WILL GIVE BRAINLIEST! Why does the percent ionization increase when the concentration of a weak acid decreases? How does Le Chat
    8·1 answer
  • Which factor affects an objects weight but not its mass?
    8·1 answer
  • Is glycine a compound or a element
    5·2 answers
  • Which chemical equation is balanced?
    6·1 answer
  • Ce procent de impuritati contine un minereu de siderit, daca din 1500kg minereu s-au obtinut 700kg fier 90% ?
    12·2 answers
  • Write the structure of methanamine
    10·1 answer
  • How many formula units are in 9.3 g of<br> alumina (Al2O3)?
    14·1 answer
  • Which of these is NOT a science and engineering practice?
    11·1 answer
  • What is δs° for the reaction so2(s) no2(g) → so3(g) no(g)? substance s°(j/k • mol) so2(g) 248.5 so3(g) 256.2 no(g) 210.6 no2(g)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!