Identify processes that change matter to a liquid state

Liquid and one solid phase transform to a second solid phase describes the characteristic of eutectic phase transformation, The correct option is c.

Eutectic phase transformation is a type of solid-liquid phase transformation that occurs during cooling of a mixture of two or more components. In eutectic transformation, a liquid phase and one solid phase transform to a second solid phase at a specific temperature, known as the eutectic temperature.

This process involves the simultaneous solidification of the two components and leads to the formation of a microstructure consisting of two or more different solid phases. Eutectic phase transformation is an important process in materials science and metallurgy and is used to produce alloys with specific properties.Therefore the correct option is C

To know more about eutectic, refer here:

https://brainly.com/question/27886492#

#SPJ11

Answer:

424.6g

Explanation:

Density is a measure of a substance's mass over its volume.

d = m/v

we can rearrange this equation to solve for mass algebraically.

dv = m

We can then substitute the given values for our variables in the problem and solve for our answer.

22mL(19.3g/mL)= 424.6g

1-Bromo-1-chloropropane has a bromine atom bonded to the first carbon (C1), a chlorine atom bonded to the second carbon (C2), and the remaining carbons connected in a chain. The highest Newman projection looking down the C1-C2 bond shows the C1 atom in the front, the C2 atom at the back, and the other atoms (Br, C3, and Cl) attached to the C1 atom.

Here's the structure of 1-bromo-1-chloropropane, showing wedges and dashes:

     Br

      |

      C

     /

    C

   /

  C - Cl

To draw the highest Newman projection looking down the C1-C2 bond, we need to imagine looking along that bond with the C1 atom in front and the C2 atom at the back. The attached atoms (Br, C1, C3, and Cl) will be represented as circles.

Here's the highest Newman projection:

      Br

       |

       C3

      /

     C1

    /

   C2

  /

 Cl

The C1 atom is represented by the intersection of the horizontal and vertical lines, while the C2 atom is shown as the circle at the end of the vertical line. The other atoms (Br, C3, and Cl) are attached to the C1 atom, and their positions are represented by their corresponding circles.

To learn more about Newman projection,

https://brainly.com/question/30167216

#SPJ4

The complete chemical formula for the unknown compound is P2Cl4.

Based on the given information, the compound is composed of phosphorus (P) and chlorine (Cl) atoms. The chemical formula PxCI4 indicates that there is one phosphorus atom bonded with four chlorine atoms. However, the value of x, which represents a whole number, is unknown at this point. To determine the complete chemical formula, we need to find the appropriate value of x based on the given measurements of the compound.

To determine the value of x, we can compare the mole ratios of phosphorus and chlorine in the compound. The molar ratio between phosphorus and chlorine can be obtained by dividing the number of moles of each element by their respective coefficients in the chemical formula. In this case, the number of moles of phosphorus (5.3 mol) divided by the coefficient of phosphorus (1) is equal to 5.3. Similarly, the number of moles of chlorine (10.8 mol) divided by the coefficient of chlorine (4) is equal to 2.7.Since the ratio of phosphorus to chlorine is 5.3:2.7, we can simplify this ratio by dividing both sides by 2.7. This gives us approximately 1.96:1. From this simplified ratio, we can conclude that x, the value representing the number of phosphorus atoms, is approximately 2.

For more such questions on Compound

https://brainly.com/question/29108029

#SPJ8

Answer:

An ion is formed by the loss or gain of electrons by an atom, so it contains an unequal number of electrons and protons. Example: Sodium ion Na+, magnesium ion Mg2+, chloride ion Cl–, and oxide ion O2–. There are two types of ions : cations and anion

4th pic is solid, gas

and the other one is further apart; increase

5th pic for second question is D

and the first question is kinetic energy

yw bakugo

The Fahrenheit temperatures corresponding to Celsius 31°C, 21°C, -9°C, and -15°C are approximately 88°F, 70°F, 16° F, 5°F.

To find the equation relating Fahrenheit temperature (F) to Celsius temperature (C), we can use the given freezing and boiling points of water on both scales.

We know that at the freezing point of water:

Fahrenheit temperature = 32°F

Celsius temperature = 0°C

And at the boiling point of water:

Fahrenheit temperature = 212°F

Celsius temperature = 100°C

We can use these two points to find the equation of the line relating F and C.

First, we find the slope of the line:

Slope = (Change in Fahrenheit temperature) / (Change in Celsius temperature)

= (212°F - 32°F) / (100°C - 0°C)

= 180°F / 100°C

Next, we find the y-intercept of the line:

Using the freezing point of water (0°C, 32°F):

32°F = Slope * 0°C + y-intercept

32°F = 0.18 * 0°C + y-intercept

y-intercept = 32°F

Therefore, the equation relating Fahrenheit temperature (F) to Celsius temperature (C) is:

F = 1.8C + 32

Now, we can use this equation to find the Fahrenheit temperatures corresponding to the given Celsius temperatures:

For 31°C:

F = 1.8 * 31 + 32 = 87.8 ≈ 88°F

For 21°C:

F = 1.8 * 21 + 32 = 69.8 ≈ 70°F

For -9°C:

F = 1.8 * -9 + 32 = 15.8 ≈ 16°F

For -15°C:

F = 1.8 * -15 + 32 = 5 ≈ 5°F

Therefore, the Fahrenheit temperatures corresponding to 31°C, 21°C, -9°C, and -15°C are approximately 88°F, 70°F, 16° F, 5°F.

Learn more about temperatures from the link given below.

https://brainly.com/question/11464844

#SPJ4

To determine the change in concentration of [H+] ions in the lake water when calcium hydroxide is added, we need to consider the neutralization reaction between the hydroxide ions from Ca(OH)₂ and the hydrogen ions present in the acidic water.

The net reaction can be given as:

2H⁺ + 2OH⁻ → 2H₂O

Initial [H⁺] concentration:

[H⁺]₁ = \(10^-p^H^1\) = 10⁻⁴

Final [H⁺] concentration:

[H⁺]₂ = \(10^-^p^H^2\) = 10⁻⁷

Δ[H⁺] = [H⁺]₂ - [H⁺]₁

= 10⁻⁷ - 10⁻⁴ = 10⁽⁻⁷⁺⁴⁾ = 10⁻³ = 0.001

Therefore, the change in concentration of [H⁺] ions in the lake water when calcium hydroxide is added is a decrease by 0.001 mol/L.

Learn more about pH change in:

https://brainly.com/question/28437135

#SPJ4

Buffer solution is obtained by hendersons hasselbalch equation.

Buffer solution is water based solution which consists of a mixture containing a weak acid and a conjugate base of the weak acid or a weak base and conjugate acid of a weak base.it is a mixture of weak acid and a base.

The pH of the buffer solution is determined by the expression of the henderson hasselbalch equation.

      pH=pKa +  log[(A-)/(HA)]

     Where, pKa =dissociation constant

                   A- = concentration of the conjugate base

                    [HA]= concentration of the acid

The buffer solution of ammonium chloride contains a weak base ammonia and a conjugate base ammonium.

 Here, a buffer solution contains 0.238 m of ammonia. The volume of the solution is 2.30l and the ph of the buffer solution is 9.02 .By putting all the values we will solve the expression.

To learn more about hendersons hasselbalch equation please visit:

https://brainly.com/question/13423434

#SPJ4

Explanation:

The Periodic Law states that the physical and chemical properties of the elements recur in a systematic and predictable way when the elements are arranged in order of increasing atomic number. Many of the properties recur at intervals. When the elements are arranged correctly, the trends in element properties become apparent and can be used to make predictions about unknown or unfamiliar elements, simply based on their placement on the table.

Answer:

The periodic law states that, "properties of the elements very periodically with their Relative Atomic Mass

Explanation:

Then the modern periodic law states that, "The chemical and physical properties of element are a periodic function of the atomic number"

Hope it helps

Answer:

I say the 1st one I'm so terrible sorry if I'm wrong

Explanation:

Water can take many forms. At low temperatures (below 0°C), it is a solid. When at “normal” temperatures (between 0°C and 100°C), it is a liquid. While at temperatures above 100°C, water is a gas (steam).

The state the water is in depends upon the temperature.  Each state (solid, liquid, and gas) has its own unique set of physical properties.

\(V^{2+}\)is the symbol of the species with 23 protons and 21 electrons.

Hence, option F is correct.

Electrons are a type of subatomic particle with a negative charge. Protons are a type of subatomic particle with a positive charge.

If it has 23 protons, then its proton number (also know as its atomic number) is 23. You can look that symbol up in your periodic table.

If it has 21 electrons then it has a net charge of 23(+) - 21. So we know the ionisation state of the species, and we can record that as a superscript after the symbol for the species.

Hence, \(V^{2+}\) is the symbol of the species with 23 protons and 21 electrons.

Learn more about the proton here:

https://brainly.com/question/1252435

#SPJ1

Answer:

citric acid = orange

I know the answer for this only..

Answer:

Clalcopyrite is the most important and major source of copper material. It is widely spread copper-iron sulfide minerals with chemical formula (CuFeS^2)

The most common natural ore of copper is chalcopyrite with the chemical formula CuFeS₂.

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

There are four types of chemical formula:

1)empirical formula

2) structural formula

3)condensed formula

4)molecular formula

Learn more about chemical formula,here:

https://brainly.com/question/11995171

#SPJ2

Answer:

433 m

Explanation:

Since the fall represents motion under gravity, we use the equation

s = ut - 1/2gt² where s = height of cliff or distance bowling ball falls through, u = initial velocity of bowling ball = 0 m/s(since it starts from rest), t = time = 9.4 s and g = acceleration due to gravity = -9.8 m/s².

So, substituting the values of the variables into the equation, we have

s = 0 m/s × 9.4 s - 1/2 × 9.8 m/s² × (9.4 s)²

s = 0 m - 1/2 × -9.8 m/s² × 88.36 s²

s = 1/2(865.928 m)

s = 432.964

s ≅ 433 m

Yes, the sea is considered a buffer.

A buffer is a solution that resists pH changes when acids or bases are added. The buffering capacity of the ocean allows it to maintain a relatively stable pH even when acids and bases are added.

The ocean's buffering capacity is primarily due to the presence of dissolved compounds such as bicarbonate (HCO3-) and carbonate (CO32-). These compounds act as both weak acids and bases, accepting and releasing hydrogen ions (H+) to maintain pH balance. When carbon dioxide (CO2) in the atmosphere dissolves in seawater, carbonic acid (H2CO3) is produced and decomposed into bicarbonate ions and hydrogen ions.

This transformation helps prevent a rapid drop in pH as excess hydrogen ions combine with carbonate ions to form bicarbonate ions, which can reduce overall acidity.

When alkali such as hydroxide ions (OH-) is added to the ocean, excess hydroxide ions combine with hydrogen ions to form water molecules, reducing alkalinity.

The presence of these dissolved compounds and their interconversion reactions stabilize the pH of the ocean, making it less susceptible to rapid changes in acidity or alkalinity. This buffering capacity is essential for the survival and maintenance of marine life, as many organisms are sensitive to changes in pH.

To know more about PH refer to this link

https://brainly.com/question/12609985

letter B

Explanation:

An entire, intact organism may be

preserved in amber and ice

The shape of the ICl5 molecule is octahedral.

The central iodine atom in ICl5 has five chlorine atoms bonded to it, resulting in a total of six electron pairs around the central atom. This electron arrangement leads to an octahedral geometry, where the chlorine atoms are located at the corners of an octahedron with the iodine atom at the center. The shape of the ICl5 molecule is square pyramid.

To determine the shape of the ICl5 molecule, follow these steps:
Identify the central atom: In this case, it is Iodine (I).
Determine the number of valence electrons for the central atom: Iodine has 7 valence electrons.
Count the number of surrounding atoms: There are 5 Chlorine (Cl) atoms.
Add the valence electrons of the central atom and the surrounding atoms: 7 (Iodine) + 5*7 (Chlorine) = 42 electrons.
Divide the total number of electrons by 8 to find the number of electron pairs: 42 / 8 = 5.25 (5 pairs and 2 leftover electrons).
Allocate the electron pairs to form bonds and find the number of lone pairs: 5 bonds to 5 Chlorine atoms, and 1 lone pair on Iodine.
Use VSEPR theory to determine the shape: 5 bonding pairs and 1 lone pair result in a square pyramid molecular geometry.

Learn more about ICl5 molecule

brainly.com/question/29597234

#SPJ11

The number of ethanol molecules in the sample are

The molecular mass of ethanol is 45.07 g/mol

Now to calculate the number of molecules of ethanol:

72.75 × (1 mol/46.07)

1.5 moles

Now multiply it with by Avogadro's number which is 6.02 X 10^23 molecules / mole.

1.5  × 6.02 X 10^23

9.03 X 10^23 molecules.

Hence the number of ethanol molecules in the sample 9.03 X 10^23 molecules.

If you need to learn more about number of molecules, click here

https://brainly.com/question/14948089?referrer=searchResults

#SPJ4

Answer:

3 significant digits

Explanation:

The first 0 don't count (that's the rule in significant digits). So 3,0,0 are left over. Count them and total will be 3 significant digits. (remember the last zero count if there is a decimal but the first zeros doesn't count even with the decimals)

The percent yield of the reaction is 63.1 %.

       CaCl2 + Na2CO3 ⇒ CaCO3 + 2 NaCl

        19.25 g ÷ 111.01 g/mol = 0.174 mol.

        0.174 mol × 100.09 g/mol = 17.6 g.

        Percent yield = (11.13 g ÷ 17.6 g) × 100% = 63.1%

So the percent yield of this reaction is 63.1%.

Learn more about Chemical Reaction here:

https://brainly.com/question/29762834

#SPJ4

Answer:

2, 8, 8

Explanation:

The first electron shell always has 2 electrons when it is complete. The second electron shell and 3rd shell can hold 8 when completed.

Answer:

Diffusion :  

the spreading of something more widely.

-AND-

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects.

Explanation:

Hope this helps :)

Pls make brainliest :P

And have an amazing day <3

The total sample size of sodium sulfate in the given sample is 9.45 g.

The given compound is sodium sulfate and the mass of oxygen present in it is 3.15 g. We have to determine the total sample size (in grams) for this sample of sodium sulfate. Let the total sample size of sodium sulfate be 'x' g.

We have to determine the value of 'x'.

Mass percent of oxygen in sodium sulfate= Mass of oxygen / Mass of sodium sulfate× 100%Or, 32 / (32+32+16×4)× 100%= 32 / (32+64)× 100%

= 32 / 96× 100%= 33.33%

Now, we have the mass percent of oxygen in the compound, sodium sulfate.

Let the mass of sodium sulfate be x g. Therefore, the mass of oxygen in it will be= 33.33% of x= 0.3333 x g

We have been given the mass of oxygen in sodium sulfate as 3.15 g.Therefore,0.3333 x g = 3.15 g

Or, x = 3.15 / 0.3333 g

= 9.45 g

To know more about sodium sulfate visit:

https://brainly.com/question/28863956

#SPJ11

Western Europe has made significant progress in reducing air pollution through practices such as monitoring emissions, using catalytic converters, developing cleaner-burning fuels, improving engine efficiency, and adopting agricultural intensification strategies. Options A,B,C ,D and E are correct.

In Western Europe, several practices have been implemented to reduce air pollution and improve air quality. One significant measure is the monitoring of emissions from various sources, including industrial facilities, vehicles, and power plants. This monitoring allows for the identification of pollution hotspots and the implementation of targeted measures to reduce emissions.

Another effective practice is the widespread use of catalytic converters in vehicles. These devices help in converting harmful pollutants emitted from vehicle exhaust, such as nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs), into less harmful substances. The mandatory use of catalytic converters has significantly reduced emissions from automobiles and contributed to improved air quality.

The development of cleaner-burning fuels has also played a crucial role in reducing air pollution. Western European countries have adopted stricter fuel quality standards, which have led to the production and use of low-sulfur fuels. Low-sulfur fuels help in reducing emissions of sulfur dioxide (SO2) and particulate matter (PM), both of which contribute to air pollution and respiratory problems.

Improving the efficiency of engines, particularly in the transportation sector, has been another effective approach. More efficient engines consume less fuel, resulting in reduced emissions. This has been achieved through the introduction of stricter fuel efficiency standards for vehicles, promoting the use of hybrid and electric vehicles, and encouraging the adoption of public transportation systems.

Additionally, Western Europe has implemented agricultural intensification strategies that aim to reduce air pollution from farming practices. These strategies include the use of precision farming techniques, such as optimized fertilizer application, reducing pesticide use, and better waste management. By implementing these practices, the release of agricultural pollutants, such as ammonia (NH3) and volatile organic compounds (VOCs), has been significantly reduced.

These efforts have led to improved air quality and the protection of public health and the environment. (Options A,B,C, D and E are correct.)

For such more questions on pollution

https://brainly.com/question/21513047

#SPJ8

Answer:

\(V_{base}=6.0mL\)

Explanation:

Hello there!

In this case, by considering that the reaction between sodium hydroxide and hydrochloric acid is in a 1:1 mole ratio of these two reactants, we are able to use the following equation relating the concentration and volume of each one:

\(M_{acid}V_{acid}=M_{base}V_{base}\)

In such a way, by solving for the volume of the base, we will obtain:

\(V_{base}=\frac{M_{acid}V_{acid}}{M_{base}} \\\\V_{base}=\frac{0.5M*24mL}{2.0M}\\\\V_{base}=6.0mL\)

Regards!

Answer:

independent variable is how it changes how it affects something else dependent variable is something being measured

Answer: An independent variable is the variable which is changed by the scientist also called the manipulated variable. The dependent variable is the result of the action of the independent variable. it is the factor that changes due to the independent variable. It is also known as the responding variable.

Explanation

The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation.

A chemical reaction is a process in which chemical bonds between atoms to break and recognize, to form other new substances.

The substance which is present at the left hand side or start of a chemical reaction is known as Reactant.

The substance which is present at the right hand side or end of a chemical reaction is known as Product.

Example: Na + Cl → NaCl

Here Na and Cl are on the left hand side of a reaction so Na and Cl are reactants. Here NaCl is on the right hand side of a reaction so NaCl is product.

Thus from the above conclusion we can say that The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation.

Learn more about the Chemical reaction here: https://brainly.com/question/11231920

#SPJ4