. 11 gallons of gasoline for $26.29
or 6 gallons of gasoline for $14.45?

At body temperature, the amount of energy required to evaporate a substance depends on the substance itself.

Different substances have different heat of vaporization, which is the amount of energy required to change a unit mass of a substance from a liquid to a gas at constant temperature and pressure. For example, the heat of vaporization of water at body temperature is approximately 40.7 kJ/mol or 2260 J/g. This means that to evaporate one gram of water at body temperature, approximately 2260 joules of energy would be required. Without knowing the substance in question, it is difficult to determine the mass or quantity of a substance that requires 2404 J of energy to evaporate at body temperature. However, it is possible to calculate the amount of energy required to evaporate a given quantity of a substance at a specific temperature using the substance's heat of vaporization.

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Answer:

3966.82 J

Explanation:

q=sm∆T

q=73×13×4.18

the specific heat for water is 4.18

Answer:

\(\boxed {\boxed {\sf 39,668.2 \ Joules}}\)

Explanation:

We are given the mass and change in temperature, so we must use this formula for heat energy:

\(q=mc \Delta T\)

The mass is 73 grams. Water's specific heat is 4.18 J/g × °C. Let's calculate the change in temperature

Now we know all the variables and can substitute them into the formula.

\(m= 73 \ g \\c= 4.18 \ J/g* \textdegree C \\\Delta T= 13 \ \textdegree C\)

\(q= (73 \ g )(4.18 \ J/g*\textdegree C)(13 \textdegree C)\)

Multiply the first numbers together. The grams will cancel.

\(q= 3051.4 \ J/\textdegree C (13 \textdegree C)\)

Multiply again. This time, the degrees Celsius cancel.

\(q= 39668.2 \ J\)

39,668.2 Joules of heat energy are absorbed.

Answer:

There are 6.023 x 10^23 fluorine atoms.

Explanation:

Answer:

Avogadro's law.

Explanation:According to Avogadro's law,at constant temperature and pressure,the volume of gas is directly proportional to the number of moles of the gas.

The statement that describes the particles that make up the rigid structure of a three-dimensional crystalline solid is:

Solids are one of the three states in which matter exists.

Solids are characterized by their having definite shapes and volumes.

Solids have definite shapes and volumes because of the arrangement of the particles in a solid.

The intermolecular forces of the particles in a solid are very strong such that the particles are not free to move but  vibrate about a fixed position.

Thus, they are arranged in rigid continuous patterns as seen in solid crystals.

In conclusion, the particles in a crystalline solid are arranged in regular repeating patterns forming a three-dimensional structure.

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Answer: the third one 2065

Explanation:

q= (13g)(4.18)(38)

q=2064.92 ≈ 2065

Answer:

D. dependent, quantitative

Explanation:

each group of ball placed in different lockers cooled to different temperatures shows that it depends on temperature

Answer:I think its C hope this helps

Explanation:

The osmolarity of 0.9% NaCl injection with a reported osmolality of 287 mOsm/kg and a density of 1.0046 gm/mL can be calculated to be 288.6 mOsm/L.

The osmolarity of 0.9% w/v NaCl injection with a reported osmolality of 287 mOsm/kg and a density of 1.0046 gm/mL can be calculated using the following equation:

Osmolarity (mOsm/L) = Osmolality (mOsm/kg) x Density (g/mL)

Therefore, the osmolarity of the 0.9% NaCl injection is 287 x 1.0046 = 288.6 mOsm/L.

Osmolarity is a measure of the number of osmoles of solute particles per liter of solution. It is important to measure osmolarity in order to understand how much salt is present in a solution. Osmolarity is typically used to measure the concentration of solutions that contain electrolytes, such as saline solutions. It is also used to measure the concentration of solutions that contain non-electrolytes, such as glucose solutions.

Osmolality is a measure of the number of osmoles of solute particles per kilogram of solvent. It is important to measure osmolality in order to understand the concentration of a solution. Osmolality is typically used to measure the concentration of solutions that contain electrolytes, such as saline solutions. It is also used to measure the concentration of solutions that contain non-electrolytes, such as glucose solutions.

In conclusion, the osmolarity of 0.9% NaCl injection with a reported osmolality of 287 mOsm/kg and a density of 1.0046 gm/mL can be calculated to be 288.6 mOsm/L.

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Answer:

Invertebrates are animals which do not have vertibral column. They do not debelop it also. For example: Arthropods , Crawfish and Sea Urchin.

The amount of oxygen gas required to react with 3 mol of ammonia is equal to 2.25 mol.

A chemical equation can be described as an expression of a reaction in terms of reactants and products. A chemical equation exhibits reactants, formed products, their physical states, and an arrow showing the direction of the chemical reaction.

A balanced equation possesses an equal number of atoms of each element is equal on either side of the equation. The law of conservation of mass follows a chemical equation during balance. The number of moles of reactants is calculated in stoichiometry.

Given the chemical equation of the reaction of oxygen and ammonia

\(2NH_3 +\frac{3}{2} O_2 \longrightarrow N_2 + 3H_2O\)

The 2 mol of ammonia reacts with oxygen gas = 1.5 mol

Then 3 mol of ammonia reacts with oxygen gas = (1.5/2) × 3 = 2.25 mol

Therefore, the moles of oxygen gas required to react with 3 mol of ammonia is 2.25 mol.

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Answer:because some have more radiation than others causing mutations and there for either decreasing or increasing the amount of ions

copper is a acidic metal in general therefor it will most likely erode faster than any other metal making it hard to determan the number of ions in general the metal will have basicly what I’m trying to say is there is no solid answer as many metals can change there ions for no given reason

Explanation:

The correct formula for titanium (IV) oxide is TiO2. Titanium (IV) oxide is represented by the chemical formula TiO2.

In this compound, Titanium (IV) oxide is represented by the chemical formula TiO2. The Roman numeral IV indicates that titanium is in its +4 oxidation state, and the oxide ion (O2-) has a -2 charge. To balance the charges, two oxide ions are required for each titanium ion, resulting in the formula TiO2. The correct formula for titanium (IV) oxide is TiO2. Titanium in its +4 oxidation state combines with two oxide ions (-2 charge each) to balance the charges. Thus, the formula TiO2 represents the compound titanium (IV) oxide.

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The impact of e-commerce on commercial real estate is significant. E-commerce sales have grown steadily, accounting for a considerable portion of overall sales.

The growth of e-commerce has fueled the demand for distribution spaces, specifically distribution centers and warehouses, which play a crucial role in the supply chain and logistics of packaging and shipping goods to customers. These spaces are sought after by e-commerce giants, who prefer locations near large cities while still providing ample room for large buildings. Suburban areas, such as Katy, Brookshire, and Waller near Houston, are experiencing significant growth in the establishment of distribution centers.

On the other hand, the rise of online shopping has posed challenges for brick-and-mortar retailers. Many physical retail spaces have struggled to remain open or have had to downsize. As a result, there is a trend towards smaller retail spaces, which require less inventory in-store. This trend encourages a combination of online and in-store shopping, known as hybrid shopping. The Covid-19 pandemic further accelerated this trend as consumers sought the convenience and safety of online shopping with options like curbside or in-store pick-up. Even as restrictions ease, this approach is expected to remain popular.

To adapt to the changing retail landscape, integrating technology into physical retail spaces has become crucial. Technology tools, such as mobile apps, can enhance the shopping experience, offer special promotions, and provide valuable data on customer behavior. Retailers, especially large lifestyle shopping centers, have been proactive in blending technology with consumer experiences to stay relevant and attract customers.

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sunlight gives energy to living things

Explanation:

sun is the main energy for the earth

The answer for {3. 45cm+1. 270cm+0. 05cm}{34. 921cm}x{89cm} is 12.149087 x 10^4 cm^3.

Scientific notation, also known as exponential notation, is a way of expressing numbers that are very large or very small. It is commonly used in scientific and mathematical calculations to represent numbers in a concise and standardized format.

To solve the given expression, let's perform the calculations step by step:

First, let's add the numbers in the numerator:

3.45 cm + 1.270 cm + 0.05 cm = 4.77 cm

Now, let's divide the numerator by the denominator:

4.77 cm / 34.921 cm = 0.136483

Finally, let's multiply the result by 89 cm and express it in scientific notation:

0.136483 x 89 cm = 12.149087 cm

So, the answer is 12.149087 x 10^4 cm^3.

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In \(4C_{10}H_8\), the coefficient is 4, the subscript of carbon is 10, and the subscript of hydrogen is 8.

Chemical formulas can be empirical or molecular. Empirical formulas have the lowest possible whole-number ratio of atoms that make up substances. Molecular formulas, on the other hand, could have whole-number ratios that could be in multiples.

Thus, each atom in chemical formulas has its respective subscripts which indicate the amount of the atom present in the formula. In chemical equations, the coefficients are the number written before chemical formulas.

Thus, in  \(4C_{10}H_8\), the coefficient is 4, the subscript of carbon is 10, and the subscript of hydrogen is 8.

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1) Because ΔH is positive, the reaction is endothermic.

2) Yes, absorbed, because in endothermic reaction heat is absorbed.

3) Heat will be released 26.9 KJ

Enthalpy depends only on the system's composition, temperature, and pressure; it is unaffected by the system's history. It is a quality or state function that resembles energy and has energy-like properties (and is thus measured in units of joules or ergs).

Given reaction is

2HgO(s) → 2Hg(l) + O₂(g)  ΔH = 182KJ

1) Because ΔH is positive, the reaction is endothermic.

2) Yes, because heat is absorbed during endothermic reactions.

3)  Heat will be released 26.9 KJ

According to the reaction,

2 moles HgO of release =  182 KJ heat

2×216.59 HgO release =  182 KJ heat

64 g HgO release =  182×64/2×216.59 KJ heat

64 g HgO release = 26.9 KJ.

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Complete question is attached below

Answer:

sad? that your giving out free points?

Explanation:

Answer:

what wrong

tell i can help u

Explanation:

Answer:

(β-decay) is a type of radioactive decay in which a beta particle (fast energetic electron or positron) is emitted from an atomic nucleus, transforming the original nuclide to an isobar of that nuclide. For example, beta decay of a neutron transforms it into a proton by the emission of an electron accompanied by an antineutrino; or, conversely a proton is converted into a neutron by the emission of a positron with a neutrino in so-called positron emission.

Explanation:

Answer:

Beta decay occurs when, in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other. ... In beta plus decay, a proton decays into a neutron, a positron, and a neutrino: p Æ n + e+ +n.

Explanation:

The two separate "phases" that make up chromatography are the mobile phase, which is the solvent that passes through the paper transporting various compounds, and the stationary phase. The stationary phase does not pass through the paper; it is contained there.

Chromatography is a technique for separating the components of a mixture. To begin the process, the mixture is dissolved in a substance known as the mobile phase, which then carries it through a substance known as the stationary phase. Chemical analysis uses chromatography, a laboratory technique, to separate a mixture into its component parts. The stationary phase is a material that is fixed in a system, and the mobile phase, which is a liquid solvent, dissolves the mixture and carries it through that system.

Chromatography is the most used separation process in chemical laboratories where it is used for analysis, isolation, and purification. It is frequently used in both small- and large-scale production in the chemical process sector.

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Answer:

Two ions that produced similar colors in the flame test were Ca+2 and Sr+2. 3.

Explanation:

The colors are produced when an electron jumps to a higher level and then jump back down.

Ba2+ and Cu2+ and Sr2+ and Li+ were the pair with the similar color. Sr and Li displayed red colors, while Ba and Cu had mild greenish yellowish hues.

Why do some ions in the flame test generate colors that are similar?

The precise sizes of the potential energy jumps differ from metal to metal. As a result, the flame color of each metal will differ due to its unique spectral line pattern. The movement of the electrons in the metal ions contained in the compounds results in the hues of the flame.

The energy released by each electron when it returns to its initial condition determines the hue of the light that is produced.

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Answer:

(CH3)3N(aq)

Explanation:

We have to think of the definition of acid and base in the sense of Brownstead-Lowry. The Brønsted–Lowry theory is an acid–base reaction theory which was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.

A Bronsted-Lowry acid is a chemical species that donates one or more hydrogen ions in a reaction. In contrast, a Bronsted-Lowry base accepts hydrogen ions. When it donates its proton, the acid becomes its conjugate base. A more general approach to the theory is viewing an acid as a proton donor and a base as a proton acceptor.

If we look at the reaction closely, we can see that (CH3)3N(aq) accepted a proton. According to the definition above, we will have to classify (CH3)3N(aq) as a base. Hence the answer.

Answer:

I believe it’s on the surface of the anode!

Explanation:

Electroplating apparatuses are the devices used in the electroplating of metals. The oxidation reaction occurs on the anode of the plate. Thus, option d is correct.

Oxidation is the process of the redox reaction in which the atoms or the ions lose their electron to the positive anode. The negative of the ionic species gets attracted to the positive of the anode.

The negative ions act as charges deposited on the positively charged anode and conduct electric current. The oxidation of the species will always occur at the anode of the electrochemical cell.

Therefore, option d. oxidation occurs at the surface of the anode.

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Answer: 824.6 g of NaCl are produced from 500.0 g of chlorine.

Explanation:

To calculate the moles :

\(\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}\)  \(\text{Moles of} Cl_2=\frac{500.00g}{71g/mol}=7.04moles\)

\(2Na+Cl_2\rightarrow 2NaCl\)  

According to stoichiometry :

1 mole of \(Cl_2\) produce = 2 moles of \(NaCl\)

Thus 7.04 moles of \(Cl_2\) will produce=\(\frac{2}{1}\times 7.04=14.08moles\)  of \(NaCl\)

Mass of \(NaCl=moles\times {\text {Molar mass}}=14.08moles\times 58.5g/mol=824.26g\)

Thus 824.6 g of NaCl are produced from 500.0 g of chlorine.

Answer:

b

Explanation:

the nucleus has an overall positive charge, the electron orbital consists of empty space, while the nucleus consists of neutrons and protons tightly packed together. The electron cloud occupies most of the total volume