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
sergey [27]
3 years ago
15

If this abudullah kid answers I will report you

Chemistry
1 answer:
Scilla [17]3 years ago
3 0

Explanation:

a. The melting point is at 20C and the boiling point is at 80C. The melting point is when a solid is going through a phase change to become a liquid, that is the 1st plateau in the graph. The boiling point is when the liquid is going through vaporization to become a gas. That is the second plateau.

b. At 30C, it is a liquid, since our melting point is at 20C.

c. The substance before 20C is a solid, as we add energy, it will melt and become a liquid.

The graph is different for each substance but in this same configuration where a change in the graph is a different phase or a phase change.

Where that first incline = solid

1st plateau= melting or freezing

2nd incline= liquid

2nd plateau= vaporization or condensation

3rd incline= gas

You might be interested in
What’s the difference between grazing and true predation
Mila [183]

Answer:

For terrestrial animals, grazing is normally distinguished from browsing in that grazing is eating grass or forbs, and browsing is eating woody twigs and leaves from trees and shrubs. Grazing differs from true predation because the organism being grazed upon is not generally killed.

Explanation:

7 0
3 years ago
Which nuclide is most likely to be radioactive and synthetic
White raven [17]

Answer:

237/93 np

Explanation:

sub to tkwick

7 0
3 years ago
HELP. I WILL GIVE YOU BRAINLIEST
Leno4ka [110]

Answer:

thx for the points but I didn't understand

7 0
3 years ago
Describe one action that people can take to reduce the amount of petroleum or crude oil needed by the plastics facility
Usimov [2.4K]

Answer:

Use bags that are not of plastic and that we can reuse.

Explanation:

To reduce the number of petroleum, people should use everyday things that do not have plastic in their composition. For example, drink water from a flask made of iron, take your mug to the coffee store or use cloth bags. These elements are not disposable, and we can use them multiple times, which leads to a reduction in the consumption of plastic products and the amount of petroleum needed for their production.

4 0
3 years ago
g The boiling of water is a Question 4 options: chemical and physical damage chemical change because a gas (steam) is given off
Strike441 [17]

Answer:

physical change because the gaseous water is chemically the same as the liquid

Explanation:

Matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are; solid, liquid and gas.

A physical change can be defined as a type of change that only affects the physical form of a chemical substance (matter) without having any effect on its chemical properties. Thus, a physical change would only affect the physical appearance and properties of a chemical substance (matter) but not its chemical properties.

This ultimately implies that, a physical change result in a change of matter from one form or phase (liquid, solid or gas) to another without a corresponding change in chemical composition.

Hence, the boiling of water is considered to be a physical change because the gaseous water is chemically the same as the liquid i.e there isn't any changes in chemical composition of water when boiling.

8 0
3 years ago
Other questions:
  • How much heat is needed to raise the temperature of a 5.0 gram block of aluminum from 22.0°c to 37.0°c?
    15·2 answers
  • What is the maximum number of electrons in the following energy level? n = 3
    6·2 answers
  • What is the molecular formula if the percent composition is 58.8C 9.8H 31.4O
    7·1 answer
  • What is the ranking order of the degree of polarity? Of HF,HCI,HBr and HI
    12·1 answer
  • The decomposition of water is used to show which of the following?
    7·1 answer
  • Need help with a chemistry question
    11·1 answer
  • Methyl bromide (CH3Br) a. is extremely flammable b. is of greater concern from its oral toxicity than from its inhalation toxici
    12·1 answer
  • What volume of 1.75 M hydrochloric acid (HCl aq) must be diluted with water to prepare 0.500 L of 0.250 M hydrochloric acid?
    8·1 answer
  • What is the nickname for mitochondria
    7·1 answer
  • You eat pizza for lunch. Which step in the digestion process causes a chemical change in the pizza?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!