If a 2.0 kg ba rolls down a hill and it’s Kinetic energy is 25 J at the bottom of the hill what must the ball velocity be at the bottom of the hill

The metal cationic (+) atom to nonmetal anionic (-) atom ratio in the compound formed between Potassium and Chlorine is 1:1.

A compound is made up of two or more atoms that are chemically combined together. In this case, we have the atoms; Potassium and Chlorine.

The electronic configuration of the atoms is not shown here but the metal cationic (+) atom to nonmetal anionic (-) atom ratio in the compound formed between Potassium and Chlorine is 1:1.

Learn more  about chemical compounds:

brainly.com/question/12166462

#SPJ1

The molarity of the solution is 0.234 mol/L

The molarity of a solution is the amount in moles of a solute dissolved in a given volume of solvent.

The molarity of the solution is determined as follows:

mass of electrolyte = 11 g

molar mass of electrolyte = 106.8 /mol

Number of moles of electrolyte = 11/106.8 = 0.0103 moles

density of water = 1 g/cm³

mass of water = 44 g

Volume of water = 44/1 = 44 ml or 0.044 L

Molarity of solution = 0.0103/0.044

Molarity of solution = 0.234 mol/L

In conclusion, the molarity of the solution is determined from the moles of solute and volume of solvent.

Learn more about molarity at: https://brainly.com/question/22283918

#SPJ1

Answer:

Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.

The carbon-hydrogen bond (C–H bond) is a bond between carbon and hydrogen atoms that can be found in many organic compounds. This bond is a covalent bond meaning that carbon shares its outer valence electrons with up to four hydrogens. This completes both of their outer shells making them stable.

^Hope it helps, Hazel^

Given that the volume of the vinegar sample is 5.00 mL (or 0.00500 L) and you have determined the moles of acetic acid.To calculate the molarity of acetic acid in the vinegar, we need to use the equation:

Molarity (M) = (moles of solute) / (volume of solution in liters)

In this case, the solute is acetic acid, and the volume of solution is the 5.00 mL sample of vinegar.

First, we need to determine the moles of NaOH used in the titration. We know that 36.32 mL of the NaOH solution was required to titrate the 5.00 mL sample of vinegar.

Using the balanced chemical equation between acetic acid (CH3COOH) and sodium hydroxide (NaOH):

CH3COOH + NaOH → CH3COONa + H2O

The stoichiometric ratio is 1:1 between acetic acid and sodium hydroxide.

Now, we can calculate the moles of NaOH used:

Moles of NaOH = (volume of NaOH solution in liters) * (molarity of NaOH)

Given that the volume of NaOH solution used is 36.32 mL (or 0.03632 L) and the molarity of NaOH is provided in question 4, you can substitute these values into the equation to calculate the moles of NaOH.

Next, since the stoichiometric ratio between acetic acid and sodium hydroxide is 1:1, the moles of NaOH used in the titration will be equal to the moles of acetic acid in the vinegar sample.

Finally, we can calculate the molarity of acetic acid in the vinegar:

Molarity of acetic acid = (moles of acetic acid) / (volume of vinegar sample in liters)

Given that the volume of the vinegar sample is 5.00 mL (or 0.00500 L) and you have determined the moles of acetic acid, you can substitute these values into the equation to calculate the molarity of acetic acid in the vinegar.

To learn more about mole click here;

brainly.com/question/15090421

#SPJ11

Fossil fuels (coal, natural gas, and petroleum), air, water, salt, limestone, sulphur, and some specialty raw materials for special goods, like phosphates and the mineral fluorspar, are all examples of raw materials.

Sand (including silica sand), clay, hard rock, limestone (including metallurgical limestone), gravel, and other building and road-building supplies are considered basic raw materials (BRM). It also includes elements used to improve agricultural soil, such as limesand and gypsum.

Direct and indirect raw materials can be separated into two categories. The finished product contains direct materials. Examples are the fabric used to produce clothing or the wood used to make furniture. Throughout the process, indirect materials are used.

To know more about raw material visit:

https://brainly.com/question/13376768

#SPJ9

The complete question is -

What are the sources of chemical raw material ?

Answer:

ALPHA

Explanation:

Answer:  6.022 × 10²³

Explanation:

Avogadro's Number (6.022 × 10²³ atoms/mole) is the number of atoms in any mole of a substance.

Answer:

nut

Explanation:

A student has performed the heat of fusion lab and measured the heat of fusion to be 313 J/g. In order to calculate the percent error, we need to know the experimental value and the true value of the heat of fusion.

The formula to calculate the percent error is as follows: Percent error = (experimental value - true value) / true value * 100%To calculate the percent error for the student who performed the heat of fusion lab and measured the heat of fusion to be 313 J/g, we need to know the true value of the heat of fusion. The true value of the heat of fusion of a substance is the amount of energy required to melt one gram of that substance without changing its temperature. This value can be found in a reference book or online database.

For example, the true value of the heat of fusion of water is 333.55 J/g at 0°C. Therefore, we can calculate the percent error as follows: Percent error = (313 J/g - 333.55 J/g) / 333.55 J/g * 100% = -6.17%The negative sign indicates that the student's measurement is lower than the true value. The percent error of -6.17% means that the student's measurement is 6.17% lower than the true value of the heat of fusion.

To know more about experimental visit:

https://brainly.com/question/5421090

#SPJ11

The largest particle, Alpha, has the least penetrative power. Positive charge is carried by alpha particles. Two neutrons and two protons are bound together to form an alpha particle. The helium-4 nucleus was later identified as the alpha particle. Among the three types of radioactive emissions, alpha particles have the most mass. An alpha particle has approximately 8000 times the mass of a beta particle. The penetrative power of an alpha particle is reduced due to its large size.

Beta particles are negative-charged high-energy electrons or positrons. Beta particles have a higher penetrative power than alpha particles due to their smaller size.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

The largest group of ferrous-based metals includes the steel and iron family.

Steel is a composite material composed of iron and carbon, with the carbon content varying within a range of up to 2 percent. These metals are distinguished by their iron composition and their magnetic characteristics. Due to their strength, longevity, and cost-effectiveness, they find extensive applications in construction, transportation, and various industries.

The primary constituent of steel is iron, a metal that, in its pure form, is only slightly harder than copper. Unless considering highly exceptional scenarios, solid iron, like other metals, is polycrystalline, meaning it is composed of multiple crystals that interconnect along their boundaries.

A crystal refers to a precisely organized configuration of atoms that can be visualized as spheres in contact with one another. These atoms are arranged in planes known as lattices, which intersect each other in specific patterns. In the case of iron, the lattice arrangement can be most effectively envisioned as a unit cube containing eight iron atoms positioned at its corners.

To learn more about ferrous metal visit:

https://brainly.com/question/9347985

#SPJ11

Answer:

high density, malleable, ductile, can corrode, good conductors,

Explanation:

gold's density is 19.3 g/cc compared to something like water which is 1g/cc

aluminum is extremely malleable, it can be flattened into thin sheets

copper can be formed into complex forms without breaking like wire, instruments, and bed frames

steel can get corroded by the oxygen particles in the air if it stays out too long.

copper is an excellent example of a conductor, it is used to make wires which conduct electricity that brings "power" into things like lights, computers, and TVs

Suppose 5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

A balanced reaction is one where the reactants and products are present in equal amounts, and if the 100% reaction takes place, then the reactant sides have 1 mol of SbF₃ and 3 mol of CCl₄ that make the product of 1 mol of SbCl₃ and 3 mol of CClF₂. After the 100% reaction, all the reactants get converted into the product. The complete reaction is the below.

SbF₃ + 3CCl₄ → SbCl₃ + 3CClF₂

Hence, suppose  5.0 mol of antimony (III) fluoride is added to 10.0 mol of carbon tetrachloride, and from the 100% reaction there are the equivalents of 0 moles of SbF₃, 5.0 moles of SbCl₃, 0 moles of CCl₄, and 15.0 moles of CClF₂.

Learn more about the balanced reaction here.

https://brainly.com/question/14280002

#SPJ2

The correct statement related to moles and concentration is: The number of particles of solute in a solution is measured in moles.

The correct option is 2.

Moles are used to express the amount of a substance in a given sample. In the context of solutions, concentration refers to the amount of solute present in a certain volume of the solution. The most common unit for expressing concentration is moles per liter (mol/L) or molarity (M).

Concentration can be calculated by dividing the number of moles of solute by the volume of the solution in liters. By measuring the number of moles of solute, we can determine the concentration of a solution and compare it to other solutions or determine if it has reached its saturation point, where no more solute can dissolve.

know more about moles here

https://brainly.com/question/28239680#

#SPJ11

Answer:

Cooler, denser air flows in underneath the warmer, less dense air, and pushes the warmer air upward. When this air cools, it becomes more dense than the warmer air beneath it. The cooled air sinks and moves under the warmer air.

Answer

Hot air is less dense than cold air, which is why hot air rises and cold air sinks, according to the United States Department of Energy. Hot and cold air currents power the weather systems on earth. The sun plays a major role in heating the planet, which also creates hot and cold air energy systems. Warm air currents typically bring rain, because they form over oceans. That’s why hurricanes and tropical storms form at sea and eventually move toward land.

Answer:

306.6g/mol

Explanation:

To calculate molecular weight you need to know how many grams ou have in a determined amount of moles of substance. As you have the mass of the sample (1.42g), you need to find how many moles are, as follows:

The reaction of the acid HX with the base YOH is:

HX + YOH → H₂O + YX

1 mole of acid reacts per mole of base.

In a titration, the solution turned pink when moles base = moles acid.

Moles of base that the student added (Using the volume and molarity of the solution) are:

32.48mL = 0.03248L ₓ (0.1426 moles base / L) = 0.004632 moles of base

As the titration is in equivalence point, there are 0.004632 moles of the acid

Molecular weight (Ratio between grams of sample and its moles) is:

1.42g / 0.004632 moles =

The significance of polar and non-polar amino acids lies in their interactions within a protein structure. Polar amino acids are typically found on the surface of the protein, where they interact with water molecules and other polar molecules. Non-polar amino acids, on the other hand, are typically found in the interior of the protein, where they interact with other non-polar amino acids through hydrophobic interactions.

Amino acids are the building blocks of proteins, and they can be categorized as either polar or non-polar. Polar amino acids have a hydrophilic (water-loving) nature due to their polarity, while non-polar amino acids have a hydrophobic (water-fearing) nature due to their lack of polarity.

The balance between polar and non-polar amino acids is crucial in determining the overall structure and function of a protein. If there are too many polar amino acids in the interior of a protein, it may become unstable and unfold. Conversely, if there are too many non-polar amino acids on the surface of a protein, it may not be able to interact effectively with other molecules.

Overall, the significance of polar and non-polar amino acids lies in their ability to contribute to the stability and function of proteins. Understanding the properties of these amino acids is important in fields such as biochemistry and drug development.

To know more about the polar and non-polar amino acids refer here :

https://brainly.com/question/31234933#

#SPJ11

The boiling requires overcoming air pressure with vapor pressure, the boiling temperature of water depends on your height from sea level. Additionally, although this tends to raise the boiling point, it relies on the presence of contaminants in the water.

However, water boils at sea level at a temperature of 100 degrees Celsius. It serves as a definition. Because that is what the Celsius system is founded on, that temperature was picked. Actually, the temperature that pure liquid water at sea level cannot get above is 100 degrees Celsius, which is the most that it can be heated to before plateauing. The "boiling point" measures the actual object in question.

If you gauge the temperature from the first sign of boiling, it may occur at a little lower levels. Whisps of vapor may be seen around 90–95 degrees, but if you are at sea level with a reliable thermometer and clear water, the temperature should increase to 100 and remain there until the water starts to boil.

To learn more about boiling temperature, refer to:

https://brainly.com/question/13633272

When we study the behavior of gases, we usually assume that they are ideal gases, which means that they follow the ideal gas law, PV=nRT, perfectly.

However, not all gases behave like ideal gases in all conditions. The gases that exhibit non-ideal gas behavior are those that do not obey the ideal gas law, especially at high pressures and low temperatures. Some examples of such gases are carbon dioxide, water vapor, and ammonia. These gases tend to have stronger intermolecular forces, which make them deviate from the ideal gas behavior.

For instance, at high pressures, the volume occupied by the gas molecules becomes significant, and they start to interact more strongly, leading to lower compressibility and higher deviations from the ideal gas law.

Therefore, it is essential to consider the non-ideal gas behavior when studying the behavior of these gases in practical applications. In summary, carbon dioxide, water vapor, and ammonia are examples of gases that exhibit non-ideal gas behavior.

To know more about ideal gases visit:

https://brainly.com/question/11951894

#SPJ11

being able to be divided into big, thin layers FEEDBACK: A mineral must be divided into numerous, thick layers in order to be utilized as a window pane. supple, fragile layers

A mineral is an organic element or compound that occurs in nature and has a recognizable chemical composition, crystalline size, and physical characteristics. Silica, feldspar, mica, albite, olivine, and calcite are examples of common minerals.

A mineral is just a substance that occurs naturally having unique atomic structures, compositions, and chemical and physical properties. Rocks are often composed of two or even more minerals that have been mixed by geological processes.

To know more about minerals visit:

https://brainly.com/question/8831889

#SPJ4

Answer:

i belive its c i could be wrong but theres my input

IR and NMR spectra can provide valuable information to prove that the product obtained from aldol condensation is the trans isomer.

Infrared spectroscopy (IR) can be used to identify the functional groups present in a compound. The IR spectrum of the trans isomer will show a characteristic C=C stretching peak at around 1630 cm⁻¹, while the cis isomer will show a peak at around 1680 cm⁻¹. Therefore, by comparing the IR spectra of the product obtained from aldol condensation with the IR spectra of known cis and trans isomers, one can confirm whether the product is the trans isomer or not.

On the other hand, nuclear magnetic resonance spectroscopy (NMR) can provide information about the stereochemistry of a compound. The NMR spectrum of the trans isomer will show two different chemical shifts for the H atoms on the double bond, while the cis isomer will show only one.

Therefore, by analyzing the NMR spectra of the product, one can determine whether the product is the trans isomer or not.

In conclusion, IR and NMR spectra can be used together to provide evidence for the stereochemistry of a product obtained from aldol condensation.

By analyzing the C=C stretching peaks in the IR spectrum and the chemical shifts in the NMR spectrum, one can confirm whether the product is the trans isomer or not.

To know more about  aldol condensation, visit:

https://brainly.com/question/31433533

#SPJ11

The standard free energy change (ΔG) for the voltaic cell based on the given reaction is approximately -223.173 kJ/mol.

To calculate the standard free energy change (ΔG) for the voltaic cell based on the given reaction, we need to use the standard cell potentials (E°) of the half-reactions involved.

The half-reactions involved in the cell are:

From the given data, the standard cell potential (E°) for each half-reaction is as follows:

E°(Cr3+/Cr) = -0.74 V

E°(Fe3+/Fe2+) = +0.77 V

Now, we can use the Nernst equation to relate the standard cell potential (E°) to the standard free energy change (ΔG):

ΔG = -nFΔE°

where:

ΔG = standard free energy change

n = number of moles of electrons transferred (balanced by the equation coefficients)

F = Faraday's constant (96,485 C/mol)

ΔE° = standard cell potential

In this case, the balanced equation shows that 3 moles of electrons are transferred. Therefore, n = 3.

Calculating the ΔG for the cell reaction:

ΔG = -nFΔE°

= -(3)(96,485 C/mol)(+0.77 V)

= -223,173 C·V/mol

= -223.173 kJ/mol (since 1 C·V = 1 J, and 1 kJ = 1000 J)

Therefore, the standard free energy change (ΔG) for the voltaic cell based on the given reaction is approximately -223.173 kJ/mol.

Learn more about Space Exploration

brainly.com/question/1979086

#SPJ11

According to the stoichiometry and given chemical equation ,5.25 moles of oxygen are  used in the reaction to produce 3.5 moles of aluminium oxide.

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

In the given chemical equation, 3 mole of oxygen produces 2 moles of aluminium oxide.

Therefore for 3.5 moles of of aluminium oxide to be  produced  3.5×3/2= 5.25 moles of oxygen are used.

Thus, 5.25 moles of oxygen were used in the reaction to produce 3.5 moles of aluminium oxide.

Learn more about stoichiometry,here:

https://brainly.com/question/28780091

#SPJ2

Answer:

I'm pretty sure the answer Is c because I think I remember doing something like that so yeah

Answer:

Em física, uma onda é uma perturbação oscilante de alguma grandeza física no espaço e periódica no tempo. A oscilação espacial se caracteriza por seu comprimento de onda, enquanto que o tempo decorrido em uma oscilação completa é denominado período da onda, e é o inverso da sua frequência

Explanation:

Answer:

1. move one's hand to and fro in greeting or as a signal.

2. move to and fro with a swaying or undulating motion while remaining fixed to one point.

3. a long body of water curling into an arched form and breaking on the shore.

4. a sudden occurrence of or increase in a specified phenomenon, feeling, or emotion.

5. a slightly curling lock of hair.

6. a tendency to curl in a person's hair.

7. a periodic disturbance of the particles of a substance which may be propagated without net movement of the particles, such as in the passage of undulating motion, heat, or sound.

Answer:

Explanation:

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

\(volume = \frac{mass}{density} \\ \)

From the question we have

\(volume = \frac{780}{7.8} \\ \)

We have the final answer as

Hope this helps you

The number of unique H1 NMR and C13 NMR signals for a compound depends on the number and arrangement of different types of atoms and functional groups in the molecule.

Double bonds, for example, can cause splitting of NMR signals, leading to multiple unique signals.

For compound a, which is benzene with three internal double bonds, there is only one unique H1 NMR signal and one unique C13 NMR signal.
For compound b, which is a benzene ring with a methyl substituent, there are four unique H1 NMR signals and five unique C13 NMR signals.
For compound c, which is a benzene ring with two methyl substituents on carbons 1 and 2, there are three unique H1 NMR signals and four unique C13 NMR signals.
For compound d, which is a benzene ring with two methyl substituents on carbons 1 and 3, there are four unique H1 NMR signals and five unique C13 NMR signals.
For compound e, which is a benzene ring with two methyl substituents on carbons 1 and 4, there are two unique H1 NMR signals and three unique C13 NMR signals.

To learn more about NMR signals click here https://brainly.com/question/29885193

#SPJ11