2. Jessica did an investigation about the states of matter. As part of the
investigation, Jessica wanted to change a liquid into a solid. What must she do to
bring about this change in state?

Answers

Answer 1
She needs to freeze the liquid change it’s physical state
Answer 2

Jessica had to freeze liquid into solid.

What is the matter?

The matter is anything that occupies space. There are three states of matter: Solid, liquid, and gas.

The process in which a solid turned into liquid is called melting. When the liquid turns into solid is called freezing. The temperature of freezing liquid remains constant. The factors which affect the freezing point of object:

If the intermolecular force of molecules are relatively strong, the freezing point of object will be relatively high.If the intermolecular force of molecules are relatively weak, the freezing point of object will be relatively low.

When water turns into ice that process is called freezing. When water turns into water vapor is called boiling. When gas turns into a solid that process is called condensation.

Therefore, Jessica had to freeze liquid into solid.

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Related Questions

What is the electron configuration for an atom of tin in the ground state?

Answers

Answer:

The ground state electron configuration of ground state gaseous neutral tin is [Kr]. 4d10. 5s2. 5p2 and the term symbol is 3P0.

Plsss help me now pls plss its a false and true questions

Answers

Answer:

to the atomic number one, is true

Element X has 3 naturally occurring isotopes. The first isotope has an atomic mass of 28.0 amu and a natural abundance of 14.0%. The second isotope has an atomic mass of 29.0 amu and a natural abundance of 66.0%. The third isotope has an atomic mass of 27.4 amu and a natural abundance of 20.0%. What is the atomic mass of element X?
a-27.1 amu
b-28.5 amu
c-28.9 amu
d-29.1 amu

Answers

Answer:

Option B. 28.5 amu

Explanation:

The following data were obtained from the question:

Isotope A:

Mass of A = 28.0 amu

Abundance (A%) = 14.0%

Isotope B:

Mass of B = 29.0 amu

Abundance (B%) = 66.0%

Isotope C:

Mass of C = 27.4 amu

Abundance (C%) = 20.0%

Atomic mass of element X =.?

The atomic mass of element X can be obtained by using the following formula:

Atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

Atomic mass of Element X = [(28 × 14)/100] + [(29 × 66)/100] + [(27.4 × 20)/100]

= 3.92 + 19.14 + 5.48

= 28.54 ≈ 28.5 amu

Therefore, the atomic mass of Element X is 28.5 amu

How can the motion of an object that is NOT moving change?

Answers

Answer:

Inertia.

Explanation:

The resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.

We have that for the Question "How can the motion of an object that is NOT moving change?" it can be said that Force is the reason for motion and is how can the motion of an object that is NOT moving change

Force

From the question we are told

How can the motion of an object that is NOT moving change?

Generally

Motion defines as the movement of a body from one place to another

Therefore

What the question is asking is

What makes the movement occur

Force

Force is defines as Mass of of an object times its acceleration but aslo is

the work done in a given time frame

Therefore

Force is the reason for motion and is how can the motion of an object that is NOT moving change

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Which of the following is a producer? O mouse cactus O snake O goose​

Answers

Answer:

cactus

Explanation:

Its a plant so it makes it own food

How are compound, elements, and mixure different

Answers

Explanation:

Compound: a substance that is made up of more than 1 type of atom bonded together Example: H2O

Mixture: combination of two or more elements or compounds not chemicaly bonded together. example: Sugar and salt in one container

elements pure substance of an atom. Example: hydrogen

pls help!! What volume is represented by each small tick mark? (look at attachment)

Answers

The mark represents a volume of 25ml.

What is a measuring cylinder?

A Measuring cylinder, a graduated cylinder, a cylinder measuring, or a mixing cylinder is a part of various laboratory materials that are used for the measurement of the volume of liquids, chemicals, or solutions during laboratory work.

Graduated cylinders have more precise and accurate measurements than the common volumetric flasks and beakers used in the laboratory. These are of various volumes ranging from small to big.

These graduated cylinders are also used for the determination of displacement. It is a measurement of the change in a volume of water when some additional materials are added to it.

This means that a graduated cylinder can be used for the determination of solid materials by taking the difference between the initial volume of water and the new volume of water.

Therefore, in this case, the mark represents a volume of 25ml.

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Which statement about the physical change of liquid water boiling into steam is true?

The heat added represents an energy change.
The action cannot be reversed.
The steam cannot conserve mass.
The weight lost represents a mass change.

Answers

A. The energy added represents an energy change.

Answer:

it A

Explanation:

ed 2020

If you dissolve 5.00 kg of methanol (CH_4O) in 2.00 m^3 of water, how many molecules of methanol per liter of water do you have? (1 kg = 1000 g; 1 m^3 = 1000 L)

Answers

Given :

Mass of methanol ( [tex]CH_3OH[/tex] ) , m = 5 kg = 5000 g .

Volume of water , [tex]V=2\ m^3=2000\ L[/tex] .

To Find :

Molecules of methanol per liter of water .

Solution :

Moles of methanol , [tex]n=\dfrac{5000}{32}=156.25\ mol[/tex] .

We know , 1 mole of a substance contains [tex]6.022\times 10^{23}\ mol^{-1}[/tex] .

So , total number of molecules :

[tex]M=156.25\times 6.022\times 10^{23}\\\\M=9.41\times 10^{25}[/tex]

Number of molecules per liter :

[tex]\dfrac{9.41\times 10^{25}}{2000}\\\\4.705\times 10^{22}[/tex]

Hence , this is the required solution .

Scientists are studying cell-to-cell communication in a human spleen.

How would scientists most likely use technology during this study?

to draw a diagram showing how cellular communication occurs
to predict what triggers cells-to-cell communication
to determine safety procedures to be used in the laboratory
to determine the number of visible cells by counting them

Answers

Answer:

To predict what triggers cell-to-cell communication

Explanation:

Methodologies used for studying cell-to-cell communication includes

1) The reductionist method in which cellular response are measured based on testing specific cellular signals by the introduction of different chemicals, so as to find the source that triggers the response

2) By the application of known chemical reagents enable or block specific areas of an organism's receptors and with the aid of an electrode measure the cellular response based on generated currents of ions or by collecting and analyzing fluid samples from the affected area.

Answer:

b

Explanation:

just took test

the following statement is an example of "if i post a image on Instagram at 7:00 pm, then ill get the most likes a. hypothesis b. problem c. experiment d. independent variable
I NEED HELP NOW PLEASE HELP ME AS FAST AS U CAN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

a

Explanation:

The given statement if i post a image on social media at 7:00 pm, then ill get the most likes is a hypothesis.

What is hypothesis?

Hypothesis can be defined as an assumption which is made for the sake of argument . It is an interpretation of a practical condition for which action needs to be taken.It is defined as a tentative assumption which is made to test logical consequences.It is an antecedent clause of a statement which is conditional.

It is constructed before research. There are six types of hypothesis 1)simple hypothesis 2) complex hypothesis 3) directional hypothesis 4)non-directional hypothesis 5) null hypothesis 6)casual hypothesis

The hypothesis should be clear and precise, it must be specific and way of explanation of hypothesis should be simple.

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List the two factors used to calculate force ? (20 pionts)

Answers

Answer:The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other.

Explanation: i hope it answers your question

Answer:

blah blah blah

Explanation:

Which mineral is found in almost every type of rock?

Answers

Answer:

Olivine

Explanation:

Hope this helps! :) x

5. An object is a regular, rectangular, solid with dimensions of 2 cm by 3cm by 2cm. It has a mass of 24 g. find its density.

Answers

Answer:

Density, D = 2g/cm^3

Explanation:

Given the following data;

Length = 2cm

Width = 3cm

Height = 2cm

Mass = 24g

Density = ?

Volume of a rectangular solid (V) = Length × Weight × Height

Therefore, V = L× W × H

Substituting the values, we have;

[tex]V = 2 *3 * 2 = 12[/tex]

V = 12cm

Density can be defined as the ratio of mass to volume i.e mass all over volume.

Mathematically, [tex]Density = \frac{Mass}{Volume}[/tex]

[tex]D = \frac{M}{V}[/tex]

Substituting the values, we have;

[tex]D = \frac{24}{12}[/tex]

Density, D = 2g/cm^3

Hence, the density of the rectangular solid is 2g/cm^3.

What characteristic of an epic hero does this passage
show?
the ability to embark on a long journey
the ability to receive help from a supernatural force
the ability to speak with confidence

Answers

The ability to speak with confidence shows the characteristic of an epic hero does this passage show. Option C is correct.

What is confidence?

The  feeling  or emotion or belief that one or a person  can have faith in or trust on someone or for something that he or she is doing or about to do and the hero are the inspiration for the society.

In other words a feeling or emotion  of self-assurance or self believe  arising or rises  from an appreciation or motivation of one's own abilities or qualities or performance.

Therefore, ability to speak with confidence shows the characteristic of an epic hero does this passage show. Option C is correct.

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Answer:

B

Explanation:

Cuz

Concrete is made of an uneven mixture of gravel, sand, and water. It is _____. homogenous heterogeneous a solution a solute

Answers

heterogeneous, because it does not have a uniform texture

hope That helps

Answer:

Heterogenous, I just took the quiz

Explanation:

HELP!!! Please answer.

Answers

Answer:

Magnesium dichloride

Explanation:

The answer is magnisum chloride

In which state do the particles have the most energy?

Answers

Answer:

gas

Explanation:

The gas state.

Because they are not confined by a certain place. All the molecules are bouncing off eachother.

which statement correctly describes a characteristic that a scientific measuring toll should have?

Answers

Answer:

Explanation:

To be accurate, it must be able to make measurements that are close to the actual value.

Answer:

Answer: To be accurate, it must be able to make measurements that are close to the actual value.

Explanation:

11. An object accelerates 7.2 m/s?when a force of 4.0 newtons is applied to
it.
What is the mass of the object?

Answers

Answer:

0.56 kg

Explanation:

F = ma. Force = Mass x acceleration

Let's take a look at why that works. If something has more mass ie atoms then it will require more effort to move it. If you want make something speed up at a higher rate then again you need to provide more of an effort. Therefore you need more force for both these situations.

Therefore the equation works.

Which of the following statements are not scientific hypotheses?

•Santa Claus exists.

The growth of corn in lowa depends on the amount of rain that falls.

•Theft is immoral.

•The bark of a specific tree is poisonous to mice

Answers

Answer:

.

Explanation:

1 and 3 aren’t a hypothesis

Electrons are in regions around the nucleus called energy levels. The first
energy level

Answers

Answer:

can only accommodate 2 electrons

What is another common name for the lanthanoids on the periodic table?

Answers

Lanthanide Lanthanoid, also called Lanthanide

If some paper and/or paper-like materials ignite and cause a very small fire at your lab table, you should?

Answers

Answer:

Tell your instructor immediately

If the fire is small enough you can try and extinguish it with a fire extinguisher.

How many electrons does the Ca^2+ ion possess

Answers

Answer:

18 electrons

Explanation:

Answer:

18 electrons

Explanation:

Ca has 20 electrons. Ca^2+ has 18 electrons

Why is being under the band of stability a problem?

Answers

Answer:

Because that indicates that something is not stable. (im pretty sure that's the reason. Im not fully sure. Good question!)

Explanation:

Part D
What does the number on the top right of the symbol show? If the value here is 0, what does that mean

Answers

Answer:

Explanation:

The  number  on the top  right  of  the  symbol shows  ATOMIC NUMBER , if it is written alone only one digit or number overall .

And if the  number is also in bottom left then bottom left number will be ATOMIC NUMBER and top right will be MASS NUMBER

Hope  this will help you *-*

Answer:

Explanation:

The number at the top right shows the electrical charge of the atom. A value of 0 means the atom is neutral, which means that the atom has the same number of electrons and protons.

What is the mass of 42.0 mL of a liquid with a density of 1.65 g/mL?

Answers

Answer:

The answer is

69.30 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 42 mL

density = 1.65 g/mL

The mass is

mass = 1.65 × 42

We have the final answer as

69.3 g

Hope this helps you

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Which statement is an example of an effective claim for an argumentative essay?The primary role of federal government is to offer services that citizens cannot provide for themselves.O The federal government has three main branches, which are known as executive, legislative, and judicial.O Taxes pay for the services that the federal government provides to every American citizen.O I believe the federal government should not tax its citizens more than they can afford to pay. Which text features would be most helpful to support the central idea of the passage? Select two options. a timeline showing how people have used sugar in the past and up until the present a diagram of one of the eight hundred ships that Alexander the Great had built a map of Alexander the Great's route and the site of the sugar cane discovery a diagram of sugar cane, showing details of its outside and inside a timeline showing when Darius I and Alexander the Great learned of sugar cane Find k so that the line through(k-1,k+2) and (4,-1) is perpendicular to the line through (-3,2) and (2,5). Linear function that are proportional always pass through what point 4. What universal theme is depicted in the three pieces of art found here?O warO marriageO passage of timeO justice Two angles are supplementary and have equal measures. What mustthe measure of each angle be? Please help it would help out alot By using only the aggregate demand curve, what can we determine Is this a function yes or no There are a equal number of protons and electeons in natural atoms True or false 2.4 Code Practice: Question 2Write a program that accepts a number as input, and prints just the decimal portion. Your program should also work if a negative number is inputted by the user.Enter a number: 15.789Sample Output0.789Can someone please help me with this because Im so stuck P + 4 Solve for p--------- = 56 Aye Anyone speak spanish, maybe they can help me answer all language questions? :D please with 5,000$ on top? 1. An angry toddler will often ...?... his parents give him special treatment.A. bidB. discordC. demand D. tumult E. interminable F. beat Did Columbus travel north or south of the equator? Plzzz help!!!! DUE TODAY!!!!! IM DESPERATE!!! WILL GIVE BRAINLIEST!!!!!! Use the values x=0.5, 0, 1 to prove your solution to the equation 5+x12=2x7. In your final answer, include all of your calculations. Y varies directly as x. If x=7 then y = 56. Find ybwhen x=3 Which country borders the Mediterranean Sea? Determine the slope of a line containing the pointsC (1,8) and D (3, 3). Write your answer in the form of afraction. Classity 2 and 1 using all relationships that apply.SupplementaryVerticalComplementaryAdjacentLinear Pair7Pls help