Walking at a brisk pace burns off about 280 cal/h. how long would you have to walk to burn off the calories obtained from eating a cheeseburger that contained 25 g of protein, 25 g of fat, and 31 g of carbohydrates? [hint: one gram of protein or one gram of carbohydrate typically releases about 4 calg, while fat releases 9 cal/g. ] hours​

Answer:

Lithium has a smaller atomic radius than potassium

Explanation:

Lithium has fewer electrons therefore fewer orbitals (1s2, 2s1) vs Potassium with more electron and therefore orbitals (1s2, 2s2, 2p6, 3s2, 3p6, 4s1)

Sodium (Na) and chlorine (Cl) are the largest dissolved components in ocean water due to the abundance of sodium and chloride ions in the Earth's crust and the continuous input of these elements into the oceans through various processes. Sodium is one of the most common elements in the Earth's crust, and chlorine is widely distributed in rocks, minerals, and salts.

Over millions of years, weathering of rocks, volcanic activity, and erosion release these elements into rivers and ultimately into the oceans. The combination of sodium and chlorine ions results in the formation of sodium chloride, which is commonly known as table salt and contributes to the salinity of seawater.

The most abundant dissolved gas in ocean water is carbon dioxide (CO2). Carbon dioxide dissolves in the surface waters of the ocean through gas exchange with the atmosphere. It plays a crucial role in regulating the pH of seawater and is an essential component of the carbon cycle. Carbon dioxide is involved in various biological and chemical processes in the ocean, including photosynthesis by marine plants and the formation of calcium carbonate shells by marine organisms. Additionally, the increase in atmospheric carbon dioxide due to human activities has led to ocean acidification, which is a significant concern for marine ecosystems.

To know more about Sodium (Na) and chlorine (Cl), click here, https://brainly.com/question/5319005

#SPJ11

Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.

Thus, Salts are among the many dissolved compounds that water from rivers and streams transports into the ocean.

In particular, sodium and chloride ions have accumulated in the ocean throughout time, leading to the high concentration of these elements in seawater. Magnesium, calcium, potassium, and sulphate ions are among the other dissolved substances in ocean water.

Oxygen  is the dissolved gas that is most prevalent in ocean water.

Thus, Due to the fact that they combine to form the ionic compound sodium chloride (NaCl), also known as salt, sodium (Na) and chlorine (Cl) are the two most abundant dissolved elements in ocean water.

Learn more about Ocean, refer to the link:

https://brainly.com/question/12738467

#SPJ4

Answer:

Decomposition

Answer:

D. ammonia, because the other three are the only three strong bases in the world (we do not need to memorize base dissociation constant for the test, we just need to know the three strong bases)

Explanation:

q u i z l e t

This would affect the results of the molecular weight determination as this would lead to a higher value for the molecular weight than the true value. The useful relationship is M= (gRT)/(PV). Significant intermolecular attraction exists at temperatures not far above boiling point. Therefore, the compressibility of the gas is greater and the value of the PV is smaller than predicted.

The molecular weight (MW) is the total atomic weight of a molecule. The MW is determined by summing the mass of all the individual atoms in a molecule.

If a substance is a volatile liquid, a common method to determine its molar mass is to use the ideal gas law, PV= nRT. Because the liquid is volatile, it can easily be converted to a gas. While the substance is in the gas phase, you can measure its volume, pressure, and temperature.

Learn more about molecular weight determination here:

https://brainly.com/question/16295211

#SPJ4

To find the molar mass of CaSO₄ 2H₂O, you need to add the atomic masses of all the elements present in the compound. The molar mass of CaSO₄ 2H₂O is 146.24 g/mol.

The molar mass of a substance is the mass of one mole of the substance and is expressed in units of grams per mole (g/mol). To calculate the molar mass of CaSO₄ 2H₂O, you need to know the atomic masses of calcium (Ca), sulfur (S), oxygen (O), and hydrogen (H).

Calcium has an atomic mass of 40.08 g/mol, sulfur has an atomic mass of 32.06 g/mol, oxygen has an atomic mass of 16.00 g/mol, and hydrogen has an atomic mass of 1.01 g/mol. To find the molar mass of CaSO₄ 2H₂O, you need to multiply the number of each element in the compound by its atomic mass and then add up all of the masses.

CaSO₄ 2H₂O, which means that there is one calcium atom, one sulfur atom, four oxygen atoms, and ten hydrogen atoms in the compound. Multiplying the number of each element by its atomic mass and adding up all the masses gives you the molar mass of CaSO₄ 2H₂O:

(1 x 40.08 g/mol) + (1 x 32.06 g/mol) + (4 x 16.00 g/mol) + (10 x 1.01 g/mol) = 40.08 g/mol + 32.06 g/mol + 64.00 g/mol + 10.10 g/mol = 146.24 g/mol

To know more about molar mass here:

https://brainly.com/question/12127540#

#SPJ11

The temperature of a plasma is often higher compared to the temperatures of gases, liquids, or solids.

Plasma is a state of matter that exists at very high temperatures, typically in the range of thousands to millions of degrees Celsius.

At such high temperatures, the atoms and molecules in the plasma gain enough energy to ionize, meaning they lose or gain electrons, resulting in a mixture of charged particles.

This ionization gives plasma its unique properties and behavior.

Plasma is commonly found in phenomena such as lightning, stars, and certain laboratory conditions. Its high temperature is necessary for sustaining the ionization and allowing the plasma to exhibit characteristics such as electrical conductivity and the ability to generate magnetic fields.

To know more about plasma, refer here:

https://brainly.com/question/31764858#

#SPJ11

The citation you provided is from a scientific paper titled "Atomically Thin p-n Junctions with van der Waals Heterointerfaces" by C.E.A. Lee, published in the journal Nature Nanotechnology in 2014.

The term "atomically thin" refers to the extremely thin nature of the junction, which is only a few atomic layers thick. This is made possible by the use of van der Waals heterointerfaces, which are interfaces between different layered materials held together by weak van der Waals forces. Examples of layered materials include graphene and transition metal dichalcogenides.

The paper explores the fabrication and characterization of these atomically thin p-n junctions, highlighting their potential for future electronic devices with high performance and low power consumption.

To know more about p-n Junctions visit:-

https://brainly.com/question/24303357

#SPJ11

This is Single displacement reaction as copper is displacing silver from silver nitrate

A single replacement reaction, also known as a single displacement reaction, occurs when one element in a molecule is swapped out for another. Starting ingredients are always pure elements combined with an aqueous compound, such as pure hydrogen gas or zinc metal. A new aqueous compound and a different pure element will be produced as products when a replacement reaction occurs.

Cu(s) + 2AgNo3(aq) → 2Ag(s) + Cu(NO3)2(aq)

When an atom or group of atoms in a molecule are replaced by another atom, this is referred to as a displacement reaction. For instance, copper metal is displaced when iron is added to a solution of copper sulphate.

A + B-C → A-C + B

The above equation exists when A is more reactive than B.

A and B have to be either:

Halogens where C indicates a cation.

Different metals wherein C indicates an anion.

Different kinds of single replacement reactions

The reactivity series identifies three primary categories of single replacement reactions:

To know more about Single-Displacement reaction refer to :

https://brainly.com/question/16396033

#SPJ1

The molecule of glucose combined with many more glucose molecules to form cellulose is the most likely to exhibit a new emergent property.

To display a new emergent property, an item requires interactions or combinations that result in novel characteristics not present in its components.
When multiple glucose molecules polymerize to form cellulose, the arrangement and bonding patterns give rise to unique properties not seen in individual glucose molecules. Cellulose, a complex carbohydrate found in plants, possesses properties such as strength, rigidity, and insolubility, which are distinct from those of individual glucose molecules. This emergent property is a consequence of the collective interactions and structural organization of the glucose monomers within the cellulose molecule.
In contrast, the other options do not involve significant interactions or combinations that would result in new emergent properties. A water molecule in a gas mixture or a liquid solution with additional water molecules does not lead to new emergent properties beyond the inherent characteristics of water itself.
Similarly, a molecule of methane in a deep cavern underground does not exhibit emergent properties as it remains a single methane molecule without significant interactions or combinations.

Learn more about cellulose here:

https://brainly.com/question/32877097

#SPJ11

The equilibrium constant (Kc) for the reaction is 0. The reactants are strongly favoured at equilibrium and the reaction is essentially a one-way reaction towards the reactants. Therefore, in this case, the reactants are favoured at equilibrium.

To calculate the equilibrium constant (Kc), we need to use the concentrations of the reactants and products at equilibrium, which are given as [MnSO4] = 0.35 M and [Al2(SO4)3] = 0.040 M.
The balanced chemical equation for the reaction is:
3 MnSO4(aq) + 2 Al(NO3)3(aq) → 2 Al2(SO4)3(aq) + 3 Mn(NO3)2(aq)
The equilibrium expression for this reaction is:
Kc = ([Al2(SO4)3]²[Mn(NO3)2]³)/([MnSO4]³[Al(NO3)3]²)
Substituting the given equilibrium concentrations into the expression, we get:
Kc = ([0.040 M]²[0 M]³)/([0.35 M]³[0 M]²) = 0
When Kc = 0, it means that the concentration of the products is zero and the reaction has not proceeded to any significant extent in the forward direction.

To know more about reactants visit :-

https://brainly.com/question/30639017

#SPJ11

The  standard enthalpies of formation for the  ΔH∘rxn for the following  is shown below:

. ΔH∘rxn for C2H4(g)+H2(g)→C2H6(g) = -32.4 kJ/mol

ΔH∘rxn for CO(g)+H2O(g)→H2(g)+CO2(g) = 295 kJ/mol

ΔH∘rxn for C6H12O6(s)+6O2(g)→6CO2(g)+6H2O(g) = -2880 kJ/mol

-84.7 kJ/mol - ( -52.3 kJ/mol) - (0 kJ/mol) = -32.4 kJ/mol

The standard enthalpy of formation of a substance is described as the enthalpy change that occurs when 1 mole of the substance is formed from its constituent elements in their standard states.

ΔH∘f (H2) + ΔH∘f (CO2) - ΔH∘f (CO) - ΔH∘f (H2O) =

0 kJ/mol + (-393.5 kJ/mol) - ( -110.5 kJ/mol) - (-241.8 kJ/mol) = -295 kJ/mol

6 ΔH∘f (CO2) + 6 ΔH∘f (H2O) - ΔH∘f (C6H12O6) - 6 ΔH∘f (O2)

= 6 (-393.5 kJ/mol) + 6 (-241.8 kJ/mol) - (-1272 kJ/mol) - 6 (0 kJ/mol) = -2880 kJ/mol

Learn more about standard enthalpy at: https://brainly.com/question/12356758

#SPJ1

The weight percentages of sodium chloride is 23.1 % and water is 76.9 % in the solution. The theoretical density of the initial concentrated solution is 0.30 g/mL.

The mass of the sodium chloride = 30 g

The mass of the water = 100 mL = 100 g

The total mass = 30 + 100

                         = 130 g

The mass percentage of sodium chloride = (30 / 130 ) × 100 %

                                                                        = 23.1 %

The weight percentage of the water = ( 100 / 130 ) × 100 %

                                                             = 76.9 %

The density of the solution = mass / volume

                                             = 30 / 100

                                            = 0.30 g/mL

To learn more about mass percentage here

https://brainly.com/question/16885872

#SPJ4

Answer: C

Explanation: I just did it

The rate law show how concentration changes affect the rate of

reaction. The correct statement is "The rate is expressed in terms of concentrations of the reactants raised to some power".

So, the correct option is C.

The rate law is a mathematical expression which give relation between rate of reaction to the concentration of reactant.

Let suppose the reaction, A + B → C

Rate law is written as, rate = [A]n[B]m

Where, n and m is order of reaction which determine by experimental.

To learn more about rate law here.

https://brainly.com/question/4222261

#SPJ2

Answer:

1/3p0

Explanation:

The combined gas law:

P1V1/T1 = P2V2/T2, where P, V and T are Pressure, Volume, and Temperature.  Temperature must always be in Kelvin.  The subscriopts 1 and 2 are for initial (1) and final (2) conditions.

In this case, temperature is constant (adiabatically). V1 = 2.0L and V2 = 6.0L.  I'll assume P1 = p0.

Rearrange the combined gas law to solve for final pressure, P2:

P1V1/T1 = P2V2/T2

P2 = P1*(V1/V2)*(T2/T1)  [Note how I've arranged the volume and temoperature terms - as ratios.  This helps us understand what the impact of raising or lowering one on the variables will do to the system].

No enter the data:

P2 = P1*(V1/V2)*(T2/T1):  [Since T2 = T1, the (T2/T1) terms cancels to 1.]

P2 = p0*(2.0L/6.0L)*(1)

P2 = (1/3)p0

The final pressure is 1/3 the initial pressure.

The yield of P₄O₁₀ is 4.14 g. This means that 4.14 grams of P₄O₁₀ are obtained in the reaction, given the conditions and percent yield provided.

To calculate the yield of P₄O₁₀, we need to use the percent yield and the given mass of phosphorus (P₄) burned. The balanced chemical equation for the reaction is:

4P + 5O₂ → P₄O₁₀

From the equation, we can see that the molar ratio between P₄O₁₀ and P₄ is 1:1. This means that the theoretical yield of P₄O₁₀ is equal to the mass of P₄ burned.

Given that 6.20 g of phosphorus (P₄) is burned, we can assume that the theoretical yield of P₄O₁₀ is also 6.20 g.

Now, we can use the percent yield formula to calculate the actual yield of P₄O₁₀:

Percent Yield = (Actual Yield / Theoretical Yield) × 100

Rearranging the formula, we can solve for the actual yield:

Actual Yield = (Percent Yield / 100) × Theoretical Yield

Substituting the given values, we have:

Actual Yield = (67.0 / 100) × 6.20 g = 4.14 g

Therefore, the yield of P₄O₁₀ is 4.14 g.

To know more about percent yield refer here:

https://brainly.com/question/31109741#

#SPJ11

The correct equation representing the radioactive decay of 226Ra is (2)   226Ra → 222Rn + 4He.

This equation correctly represents the radioactive decay process of 226Ra (Radium-226) into 222Rn (Radon-222) and 4He (Helium-4).

In radioactive decay, unstable isotopes undergo a spontaneous process to transform into more stable forms by emitting particles or radiation. In the case of 226Ra, it decays by a process called alpha decay. Alpha decay involves the emission of an alpha particle, which consists of two protons and two neutrons (equivalent to a helium nucleus).

The equation (2) shows that 226Ra undergoes alpha decay, resulting in the formation of 222Rn and the release of an alpha particle (4He). The atomic number and mass number must be conserved in the decay process. Therefore, 226 (atomic number 88) on the left side of the equation decays to 222 (atomic number 86) on the right side, while the mass number also decreases by 4 units.

It's important to note that equation (1) represents an incorrect notation, as it suggests that 226Ra undergoes a transformation to 226Ra89, which is not possible as it implies an increase in atomic number. Equation (3) does not accurately represent the decay of 226Ra. Equation (4) is incorrect as it represents the formation of an isotope that doesn't exist.

for more such questions on radioactive

https://brainly.com/question/18640165

#SPJ8

The frequency of light associated with the transition from n=2 to n=3 is approximately 5/36 times the Rydberg constant.The frequency of light associated with the transition from one energy level to another can be calculated using the Rydberg formula, which is given by:

ν = R * (1/n₁² - 1/n₂²)

where ν is the frequency of light, R is the Rydberg constant (approximately 3.29 x 10^15 Hz), n₁ is the initial energy level, and n₂ is the final energy level.

Given that the transition is from n=2 to n=3, we can substitute these values into the formula and calculate the frequency:

ν = R * (1/2² - 1/3²)

ν = R * (1/4 - 1/9)

ν = R * (9/36 - 4/36)

ν = R * (5/36)

The frequency of light associated with the transition from n=2 to n=3 is approximately 5/36 times the Rydberg constant.

To learn more about Rydberg constant click here: brainly.com/question/28168267

#SPJ11

In the beta oxidation pathway, which of these is produced when ATP is consumed is CH₃(CH₂)n-₄COCH₂CO-COA

Option A is correct .

Each round of mitochondrial beta-oxidation produces one acetyl CoA molecule, one FAD(2H) molecule, one NADH molecule, and four ATP equivalents. Specific enzymes are required for the metabolism of fatty acids during beta oxidation.

Due to their higher H+ concentration, saturated fats do indeed contain more gross energy. Nonetheless, unsaturated fats are more edible and have higher ingestion rate, and in this manner the metabolizable energy that unsaturated fats give is higher than that given by soaked fats.

Learn more about beta oxidation :

brainly.com/question/30270899

#SPJ4

Hello. You have not presented the image that presents the two elements mentioned in the question. This makes it impossible for your question to be answered. However, I will try to help you as best I can.

To say whether the compounds obey the law of multiple proportions, you should observe whether one of the elements, formed from the compounds, maintains a fixed mass, while the other element presents the mass in a varied amount of small, whole numbers, spread across the formed compounds .

This is because the law of multiple proportions states that an element must have a fixed mass when reacting with another element to create compounds. This reaction will allow this element to keep the mass fixed, while the other element will generate different compounds, where each one presents a part of the mass of the forming element, in small and whole numbers.

The major difference between potassium channel and the nuclear pore complex is that potassium channel is a single protein but nuclear pore complex is made of large number of different proteins.

A nuclear pore is a component of the vast protein complex known as a nuclear pore complex, which spans the nuclear envelope, the double membrane that encloses the nucleus of eukaryotic cells.

A vertebrate cell's nuclear envelope contains roughly 1,000 nuclear pore complexes (NPCs), while the exact amount varies depending on the cell type and stage of the life cycle. The 110 megadalton (MDa) human nuclear pore complex (hNPC) is a structure. Nucleoporins are the proteins that make up the nuclear pore complex (NPC), which is made up of 34 different nucleoporin proteins and at least 456 different protein components.

To know more about nuclear pore complex, click here,

brainly.com/question/14012733

#SPJ4

The order of measurements from the smallest to largest will be 0.0m < 2 × 10⁻⁵ m < 1 × 10⁻⁴ m < 3 × 10⁻⁶ km < 4.0 × 10²mm <  1.0 m.

When converting the values from kilometers to meters, we multiply the value with 1000 or 10³ and when converting the values from millimeters to meters, we multiply the value by 0.001 or 10⁻³.
1.0 × 10⁻⁴ m = 0.0001 m

2.0 × 10⁻⁵ m = 0.00002 m

3.0 × 10⁻⁶ km = 0.000003 × 1000 = 0.003 m

4.0 × 10² mm = 400 × 0.001 = 0.4 m

0.0 m

1.0 m

The correct order of measurements from the smallest to largest will be 0.0m < 2 × 10⁻⁵ m < 1 × 10⁻⁴ m < 3 × 10⁻⁶ km < 4.0 × 10²mm <  1.0 m.

To know more about measurements here

https://brainly.com/question/29003597

#SPJ4

Answer:

Explanation:

They are all gases at room temperature.

Hope this helps!

Answer:

Buffer solutions are essential in regulating blood acidity because they help maintain a stable pH level in the body. The pH of blood needs to be tightly controlled within a narrow range of 7.35 to 7.45 for optimal physiological functioning. Buffers work by absorbing excess hydrogen ions (H+) or hydroxide ions (OH-) that may be introduced into the bloodstream from various metabolic reactions. For example, if the blood becomes too acidic due to an increase in H+ ions, buffer systems such as the bicarbonate-carbonic acid system can neutralize the excess H+ ions and restore the pH balance. Conversely, if the blood becomes too alkaline due to an increase in OH- ions, buffer systems can absorb the excess OH- ions and bring the pH back to normal. In this way, buffer solutions help maintain the delicate acid-base balance crucial to the proper functioning of our bodies.

\(\Delta\)G = 0 when a system is in equilibrium. \(\Delta\)G<0 if the process is spontaneous.

To learn more about Gibbs free energy refer,

https://brainly.com/question/13765848

#SPJ4

According to the graph, increasing the temperature of the solution will increase the solubility of KBr.

There is direct relationship between solubility and temperature because if one increases the other decreases whereas if one decreases the other is also decreases. The higher temperature of the solution is, the easier a solid will be able to dissolve in that solution while on the other hand, the lower is the temperature of the solution, the solid will not dissolve easily. In the graph, we can see that the line of KBr moves in the upward direction which clearly shows that with increasing temperature, the solubility of KBr is also increases.

So we can conclude that According to the graph, increasing the temperature of the solution will increase the solubility of KBr.

Learn more about solubility here: https://brainly.com/question/9098308

#SPJ1

The inflation rate from 2014 to 2015, assuming 2014 as the base year, is 68.09%.

The inflation rate from 2014 to 2015, assuming that 2014 is the base year, can be determined using the Consumer Price Index (CPI). The CPI measures the cost of goods and services over time and is used to calculate inflation. The formula for calculating inflation rate using CPI is as follows: Inflation rate = ((CPI year 2 - CPI year 1) / CPI year 1) x 100To solve this problem, we first need to calculate the CPI for each year using the prices and quantities of nuts and meat.

Calculating CPI for 2014:CPI 2014 = (300 x $9) + (175 x $19) = $5,625 Calculating CPI for 2015:CPI 2015 = (420 x $9) + (340 x $14) = $9,460Using the CPI formula, we can calculate the inflation rate from 2014 to 2015:Inflation rate = ((CPI 2015 - CPI 2014) / CPI 2014) x 100= (($9,460 - $5,625) / $5,625) x 100= $3,835 / $5,625 x 100= 68.09% (to 2 decimal places) Therefore, the inflation rate from 2014 to 2015, assuming 2014 as the base year, is 68.09%.

To know more about rate visit:-

https://brainly.com/question/31892655

#SPJ11

Answer:

16-7=9

Explanation:

you substract the atomic mass from the atomic number