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
KatRina [158]
2 years ago
7

A company uses a substance that is Solid under normal conditions this substance will be used in extreme conditions which could m

ake this substance molecules move faster and cause a phase change how would this phase change occur , and how would the molecules of the substance be affected under these extreme conditions
Chemistry
1 answer:
creativ13 [48]2 years ago
3 0

Answer:

Extreme heat will cause the substance molecules to move faster and cause a phase change this phase change would occur if left in an extremely hot area causing the molecules to spread apart.

Explanation:

You might be interested in
Which model best shows the movement of oxygen during photosynthesis
Alexxandr [17]
All photosynthesis eukaryotic cells contain chloroplast that use the radiant energy of sunlight to convert carbon dioxide and water into carbohydrates. As a byproduct of photosynthesis, oxygen gas is also released into the atmosphere through tiny openings in the leaves called stomata
7 0
2 years ago
What is the concentration (in M) of a 225ml potassium sulfate solution that contains 4.15g of potassium?
mars1129 [50]

The concentration of solution in M or mol/L can be calculated using the following formula:

C=\frac{n}{V} .... (1)

Here, n is number of moles and V is volume of solution in L.

The molecular formula of potassium sulfate is K_{2}SO_{4} thus, there are 2 moles of potassium in 1 mol of potassium sulfate.

1 mol of potassium will be there in 0.5 mol of potassium sulfate.

Mass of potassium is 4.15 g, molar mass is 39.1 g/mol.

Number of moles can be calculated as follows:

n=\frac{m}{M}

Here, m is mass and M is molar mass

Putting the values,

n=\frac{(4.15 g}{(39.1 g/mol}=0.1061 mol

Thus, number of moles of  K_{2}SO_{4} will be 0.1061\times 0.5=0.053 mol.

The volume of solution is 225 mL, converting this into L,

1 mL=10^{-3}L

Thus,

225 mL=0.225 L

Putting the values in equation (1),

C=\frac{(0.053 mol}{0.225 L}=0.236 M

Therefore, concentration of potassium sulfate solution is 0.236 M.


4 0
3 years ago
Which of the following is a physical change. A piece of magnesium metal formed bubbles when dropped in acid
uysha [10]

H2O became a vapor when heated because thats the only one that can go back to its normal state, which is what a physical change is.


3 0
2 years ago
When magnesium chloride is formed what question will the student need to ask prior to writing the formula?
ivann1987 [24]

Prior to writing the chemical formula of magnesium chloride, a question which any student will need to ask is: A.  What are the oxidation numbers of each atom?

A chemical formula can be defined as a scientific notation that is used to show (represent) the type and total number of atoms that constitute a particular chemical molecule or compound, by using the oxidation number, chemical symbols and subscripts.

Hence, a student would need to know the oxidation numbers of each atom when magnesium chloride is formed after a chemical reaction.

In Chemistry, an oxidation number represents the number of electrons <u>gained</u> or <u>lost</u> by an atom of a chemical element during a chemical reaction.

In conclusion, when magnesium chloride is formed, a question which the student will need to ask prior to writing the chemical formula is "what are the oxidation numbers of each atom?"

Read more: brainly.com/question/13750908

3 0
2 years ago
An example of a solution that is formed endothermically is the one used in
Makovka662 [10]

Cold Packs

<u>Explanation:</u>

Endothermic reactions are reactions in which heat is absorbed from the surroundings and the container in which the reaction takes place is said to be very cold. In cold packs, ammonium nitrate is used, is dissolved in solution is said to be an example of endothermic reaction, in this the heat energy is absorbed from the surroundings. In this the solute increases the solubility with the rise in temperature, and also used in cold packs.

3 0
2 years ago
Other questions:
  • 7. Which part moves the blood away from the heart?
    15·2 answers
  • Identify the correct formula for ammonia.
    7·1 answer
  • Two chemicals are mixed together and a gas is produced. *<br>chemical change <br>physical change ​
    10·1 answer
  • A student mixes a solution of lead (II) nitrate with a solution of potassium iodide and notices the formation of a yellow solid.
    8·1 answer
  • How did Mendel's experiments disprove the idea that we are simply a "blend" of our parents' traits?
    10·1 answer
  • Nevermind i got it dont need help thanks
    6·1 answer
  • What makes up most of an atom?
    15·2 answers
  • Do you think one mole of the different substances has the same amount?​
    15·1 answer
  • I need help in science
    13·1 answer
  • An aqueous solution turns litmus red. The ph of this solution could be
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!