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
Alinara [238K]
2 years ago
9

Learning Task 1 Match column A with column B. Column A Column B 1. Phase Change -2. Freezing 3. Condensation 4. Melting 5. Evapo

ration a. temperature wherein a liquid solidifies b. change from one state to another without a change in chemical composition c. the temperature at which solid turns into a liquid d. the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the 6. Freezing point 7. Boiling point 8. Melting point 9. 100°C 10.0°C e. f. liquid the change from liquid to gas happens when solid turns to liquid freezing and melting point of water boiling point of water happens when a gas turns into a g h. i. liquid​

Chemistry
1 answer:
RSB [31]2 years ago
6 0

Change of state occurs when heat is supplied or removed from a substance.

<h3>What is change of state?</h3>

Change of state refers to the changes that occur when a substance changes from one physical state to another due to changes in its temperature.

It is also known as phase change.

Phase Change can also be defined as change from one state to another without a change in chemical composition.

Some of the phase changes include:

  • Freezing: when liquid changes to solid
  • Condensation: when gas changes to liquid
  • Melting: when solid changes to liquid
  • Evaporation: when liquid changes to gas

The other terms associated with phase change include:

  • Boiling point: the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the liquid
  • Freezing point: temperature wherein a liquid solidifies
  • Melting point: the temperature at which solid turns into a liquid.

Learn more about change of state at: brainly.com/question/18372554

You might be interested in
One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silv
babunello [35]

Answer:

5.0x10⁻⁵ M

Explanation:

It seems the question is incomplete, however this is the data that has been found in a web search:

" One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose a EPA chemist tests a 250 mL sample of groundwater known to be contaminated with nickel(II) chloride, which would react with silver nitrate solution like this:

NiCl₂ + 2AgNO₃ →  2AgCl + Ni(NO₃)₂

The chemist adds 50 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 3.6 mg of silver chloride. Calculate the concentration of nickel(II) chloride contaminant in the original groundwater sample. Round your answer to 2 significant digits. "

Keep in mind that while the process is the same, if the values in your question are different, then your answer will be different as well.

First we <u>calculate the moles of nickel chloride found in the 250 mL sample</u>:

  • 3.6 mg AgCl ÷ 143.32 mg/mmol * \frac{1mmolNiCl_{2}}{2mmolAgCl} = 0.0126 mmol NiCl₂

Now we <u>divide the moles by the volume to calculate the molarity</u>:

  • 0.0126 mmol / 250 mL = 5.0x10⁻⁵M
4 0
3 years ago
The radius of a helium atom is a 31 PM. What is the radius in nanometers?
Paladinen [302]

Answer:

Thus, the radius of the helium atom in nanometers is - 0.031 nm

Explanation:

Given that:-

The radius of the helium atom = 31 pm

Considering the conversion of length in pm to the length in nm as:-

1 pm = 0.001 nm

So,

Applying the above conversion factor in the radius of helium atom as:-

Radius = 31\times 0.001 nm = 0.031 nm

<u>Thus, the radius of the helium atom in nanometers is - 0.031 nm</u>

7 0
3 years ago
Water is composed of one atom of oxygen and two atoms of
egoroff_w [7]

Answer:

<em>Hydrogen.</em>

Explanation:

You've probably seen "H_{2}0" which is the formula for water. It means that there's 2 hydrogen atoms, and one oxygen atom, in one molecule of water.

<em>Hope this helps! Feel free to mark me Brainliest if you feel this helped. :)</em>

3 0
3 years ago
Read 2 more answers
How much does it take to make a science explosion?
melomori [17]

Answer:

Explanation:

D I think I am dumb

sorry

6 0
3 years ago
Read 2 more answers
Students set up three trials of an experiment to test the
Dvinal [7]

Need the answer to this question

8 0
3 years ago
Other questions:
  • A sample of gas in which [h2s] = 5.25 m is heated to 1400 k in a sealed vessel. after chemical equilibrium has been achieved, wh
    7·1 answer
  • What method of separation would work best on a homogeneous mixture salt water? Select all that apply. filtration distillation ev
    7·2 answers
  • Click on the button to activate the drawing utility. draw another constitutional isomer with the molecular formula c5h10o that i
    12·1 answer
  • How many chromosomes would be in a sex cell of a Syrian hamster
    6·1 answer
  • Given the rate equation, when the concentration of A is doubled while that of B is halved, the rate will Given the rate equation
    5·1 answer
  • What would be the freezing point of a 1.7 mole aqueous ethylene glycol solution? The freezing point depression constant for wate
    12·1 answer
  • PLEASE HELP!!!!!!!
    8·1 answer
  • What are the different layers of the earth and how do they interact.
    13·1 answer
  • Ignore the one I chose hehe! but please help?!
    5·2 answers
  • Look at Table 4 in the procedure portion of the experiment. Calculate the pH you would expect each of the buffer solutions (A, B
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!