Tom places 2 iron cubes of equal mass on a piece of fabric. The temperature of cube 1 is 20° c , and cube 2 is 35° c , what will happen if tom moves cube 1 to touch cube 2 ?

​

The total weight of dextrose is 250 grams.

The total weight of Aminosyn is 42.5 grams.

10 mL of KCI should be added.

5 mL of NaCl should be added.

The total volume of the solution with the original fluids and the addition of KCI and NaCl is 1315 mL.

To calculate the total weight of dextrose, we need to know the concentration of the 50% dextrose solution. Assuming the concentration refers to weight/volume (w/v), we can calculate the weight using the formula:

Weight of dextrose = (Concentration of dextrose * Volume of dextrose solution) / 100

Weight of dextrose = (50 * 500) / 100

Weight of dextrose = 250 g

Therefore, the total weight of dextrose is 250 grams.

To calculate the total weight of Aminosyn, we need to know the concentration of the 8.5% Aminosyn solution. Assuming the concentration refers to weight/volume (w/v), we can calculate the weight using the same formula as above:

Weight of Aminosyn = (Concentration of Aminosyn * Volume of Aminosyn solution) / 100

Weight of Aminosyn = (8.5 * 500) / 100

Weight of Aminosyn = 42.5 g

Therefore, the total weight of Aminosyn is 42.5 grams.

To calculate the volume of KCI to be added, we need to know the strength of the stock KCI solution. Assuming the stock KCI solution is 2 mEq/mL, we can calculate the volume of KCI using the formula:

Volume of KCI = (Amount of KCI needed) / (Strength of KCI solution)

Volume of KCI = 20 mEq / 2 mEq/mL

Volume of KCI = 10 mL

Therefore, 10 mL of KCI should be added.

To calculate the volume of NaCl to be added, we need to know the strength of the stock NaCl solution. Assuming the stock NaCl solution is 4.4 mEq/mL, we can calculate the volume of NaCl using the formula:

Volume of NaCl = (Amount of NaCl needed) / (Strength of NaCl solution)

Volume of NaCl = 22 mEq / 4.4 mEq/mL

Volume of NaCl = 5 mL

Therefore, 5 mL of NaCl should be added.

The total volume of the solution with the original fluids and the addition of KCI and NaCl can be calculated by adding the volumes of all the components:

Total volume = Volume of dextrose solution + Volume of Aminosyn solution + Volume of sterile water + Volume of KCI + Volume of NaCl

Total volume = 500 mL + 500 mL + 300 mL + 10 mL + 5 mL

Total volume = 1315 mL

Therefore, the total volume of the solution is 1315 mL.

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The Hg atom's electronic configuration in the Lewis structure of HgCl2 is [Xe], 4f14, 5d10, and 6s2. As a result, the outer shell valence orbital of the Hg (mercury) atom has two valence electrons.

The electron is the smallest atom-forming particle and a carrier of a negative charge. For instance, the hydrogen atom only contains one proton and one electron. The uranium atom is unique due to its 92 protons and 92 electrons.

The electrons of the negatively charged atom are in charge of this. The positive charge of the protons in the atomic nucleus is balanced by the overall negative charge of an atom, which is created by all of its electrons. The electron is a very little element compared to all the other parts of the atom.

An electron may be attached to or free from an atom. A negatively charged subatomic particle is called an electron (not bound).

The complete question is,

What does mercury's Lewis dot structure look like?

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Answer:

101.4pKa

Explanation:

Given parameters:

Initial Volume of helium  = 3.20L

Final pressure of helium  = 59kPa

Final volume on helium gas = 5.5L

Unknown:

Initial pressure exerted on the balloon = ?

Solution;

To solve this pressure - volume problem, we simply apply the Boyle's law.

It states that "the volume of a fixed mass gas varies inversely as the pressure changes if the temperature is constant".

  Mathematically;

         P1 V1  = P2 V2

Now, insert parameters and solve;

         P1 x 3.2 = 59 x 5.5

          P1  = 101.4pKa

The pH of a 0.050 M aqueous codeine solution is calculated 10.30.

To find the pH of a 0.050 M aqueous codeine solution, we need to first determine the concentration of hydroxide ions (OH⁻) in the solution, since codeine is a weak base. We can do this using the Kb value of codeine:

Kb = [OH⁻][Codeine]/[CodeineOH⁺]

Since we are given the Kb value and the concentration of codeine, we can solve for [OH⁻]:

Kb = [OH⁻][Codeine]/[CodeineOH⁺]
1.6x10-6 = [OH⁻][0.050]/[CodeineOH⁺]

To simplify this equation, we can assume that [OH⁻] is much smaller than 0.050 (since codeine is a weak base, it will only partially dissociate in water to form OH⁻ ions). This means that we can neglect the change in [Codeine] due to its partial dissociation, and approximate [Codeine OH⁺] to be equal to 0.050 - [OH⁻]:

1.6x10-6 = [OH⁻][0.050]/(0.050 - [OH⁻])

Simplifying and solving for [OH⁻], we get:

[OH⁻] = 2.0x10-4 M

Now we can find the pH of the solution using the equation:

pH = 14 - pOH

pOH = -log[OH⁻] = -log(2.0x10-4) = 3.70

pH = 14 - 3.70 = 10.30

Therefore, the pH of a 0.050 M aqueous codeine solution is 10.30.

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To solve this problem, we need to use the formula for calculating the pH of a weak base solution. The formula is         pH = pKb + log([base]/[acid]), The Kb value for codeine is 1.6x10⁻⁶, so the pKb is 5.80 (-log(1.6x10⁻⁶)).

Next, we need to find the concentration of codeine-H+ in the solution. Since codeine and its conjugate acid are in equilibrium, we can use the equation Ka x Kb = Kw to calculate the Ka value for codeine-H+. Kw is the ion product constant for water, which is 1.0x10⁻¹⁴ at 25°C. Therefore, Ka = Kw/Kb = 6.25x10⁻⁹. Now we can use the equilibrium constant expression for the dissociation of codeine-H+ to find its concentration. The expression is Ka = [H+][codeine]/[codeine-H+]. At equilibrium, [H+] = [codeine-H+], so we can simplify the expression to Ka = [H+]²/[codeine]. Solving for [H+], we get [H+] = sqrt(Ka*[codeine]) = sqrt(6.25x10⁻⁹) = 1.25x10⁻⁵ M.

Finally, we can plug in the values we found into the pH formula. pH = pKb + log([base]/[acid]) = 5.80 + log(0.050/1.25x10⁻⁵) = 10.50. Therefore, the pH of a 0.050 M aqueous codeine solution is 10.50. In conclusion, the pH of a 0.050 M aqueous codeine solution is 10.50. We found this value by using the formula for calculating the pH of a weak base solution and solving for the concentration of codeine-H+ in the solution.

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The structure of C5H10O2 is likely to be ethyl acetate. The IR peak at 1740 cm^-1 indicates the presence of a carbonyl group (C=O).

The NMR data shows signals at 1.15 ppm and 1.25 ppm, both as triplets with 3H each, indicating methyl groups (CH3). The signal at 2.30 ppm appears as a quartet with 2H, suggesting a methylene group (CH2). The signal at 4.72 ppm appears as a quartet with 2H, indicating a methylene group adjacent to an oxygen atom (OCH2). The IR peak at 1740 cm^-1 suggests the presence of a carbonyl group (C=O), which is characteristic of esters. The NMR data confirms the presence of an ester by showing two signals at 1.15 ppm and 1.25 ppm, both as triplets with 3H, indicating methyl groups (CH3) attached to the carbonyl carbon. The signal at 2.30 ppm appears as a quartet with 2H, indicating a methylene group (CH2) adjacent to the ester carbonyl. The signal at 4.72 ppm appears as a quartet with 2H, indicating a methylene group adjacent to an oxygen atom (OCH2), which is also characteristic of an ester. Therefore, the given spectral and NMR data are consistent with the structure of ethyl acetate (CH3COOCH2CH3).

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Answer:

Speed is 2

Explanation:

Speed = distance ÷ time

90/45=2

Answer: 2

Explanation:

Distance/Time = Speed

Answer:

10

Explanation:

the volume of C2H2 reacted with 25 moles of O2

9.85L of ethyne is needed to react with 25 L of oxygen for the reaction at STP.

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter.

A mole is defined as the amount of substance containing the same number of atoms, molecules, ions, etc. as the number of atoms in a sample of pure 12C weighing exactly 12 g.

Given,

Volume of oxygen = 25 L

We know that 1 mole of a gas occupies 22.4 L of volume

So, 25L is occupied by 1.11 moles of oxygen.

From the reaction, 5 moles of oxygen needs 2 moles of ethyne.

1 mole of oxygen would need 2/5 moles of ethyne

Thus, moles of ethyne needed = ( 2 / 5) × 1.11

= 0.44 moles

Volume of ethyne needed = 0.44 × 22.4 = 9.85 L

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Answer:

but were is the answer

Explanation:

i am so confuesed

The activation energy for the reaction between methane and chlorine at room temperature is high.

Activation energy refers to the energy required to overcome the energy barrier between reactants and products. In order words, it is the minimum energy that reactant particles must posses in order for their collision to result in a chemical reaction.

The activation energy for the reaction between methane and chlorine at room temperature is high. Hence, the reaction does not take place unless energy is supplied to the system in form of a spark, UV light or heat.

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Answer:

Explanation:

Heat energy always moves from hot to cold. The sunlight doesn't reach certain parts of the ocean due to it being so deep. The water above it absorbs it. So because this top water absorbs all the heat/energy, it is a lot warmer and is constantly transferring heat to the colder parts through kinetic energy. The warmer water has particles that have way more kinetic energy than the cold particles below it. And more kinetic energy means more movement, so that's why they transfer their heat to the colder particles.

I dont actually know if Im correct or not. Im just guessing based on what I know about physics.

The combine mass of the sled and the rider, given that each dog pulled with a force of 30 N is 200 Kg

We know that force is related to mass and acceleration according to the following formula:

Force (F) = mass (m) × acceleration (a)

F = ma

With the above formula, we can determine the combined mass of the sled and rider. Details below.

From the question given above, the following data were obtained:

The combined mass can be obtained as follow:

Force = mass × acceleration

240 = mass × 1.2

Divide both sides by 1.2

Mass = 240 / 1.2

Mass = 200 Kg

Thus, the combine mass is 200 Kg

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The freezing point of the solution is - 2.15.

The freezing point is the point at which a liquid is changed to solid. We can use the formula;

ΔT = K m I

ΔT = temperature change

K = freezing constant of benzene

m = molality

i = Van't Hoff factor

Now;

ΔT =  5.12°C/m * 0.655 m  * 1

ΔT = 3.35°C

ΔT = Freezing point of pure benzene - Freezing point of solution  

Freezing point of solution  = ΔT -  Freezing point of pure benzene

= 3.35°C -  5.5 °C = - 2.15

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Answer:

2.143 degrees celsius

Explanation:

The reason that the balloons deflate in the cold weather is because the helium is denser than the air,” When the temperature is colder, the pressure will also decrease, but the density will increase.

The final volume of the balloon if 0.20 moles of gas are added will be 1.62 L.

The volume of the balloon given that 0.20 moles of a gas is added to it is determined using the ideal gas equation as follows:

P₁V = nRT

Where;

P is pressure

V is volume

n is the number of moles of gas

R is molar gas constant = 0.082 atm.L/K.mol

Initial volume, V₁ = 1.50 L

Initial mole of gas, n₁ = 2.50 mol

Initial temperature, T₁= 25°C or 298 K

Initial pressure, P₁ = RT₁n₁/V₁

P₁ = 0.082 * 298 * 2.50 /1.50

P₁ = 40.7 atm

With pressure and temperature held constant:

Final temperature, T₂ is equal to T₁ = 298 K

Final pressure, P₂ is equal to P₁ = 40.7 atm

Final moles of gas, n₂ = 0.20 + 2.5

n₂ = 2.70 mol

Final volume, V₂ = RT₂n₂/P₂

V₂ =  0.082 * 298 * 2.70 /40.7

V₂ = 1.62 L

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The name of the compound is 5-cyclopentyl-3-methylhexane.

A carbon chain refers to a sequence of carbon atoms linked together in a straight or branched arrangement. Carbon chains are the fundamental building blocks of organic compounds, forming the backbone of molecules such as hydrocarbons and carbohydrates. The length of a carbon chain can vary, ranging from just a few carbon atoms to thousands. The arrangement and bonding of other atoms, such as hydrogen, oxygen, and nitrogen, along the carbon chain determine the specific properties and functions of the molecule. Carbon chains play a crucial role in various biological processes, as well as in the synthesis of many industrial and pharmaceutical compounds.

According to the given statement:
1. Start by identifying the longest continuous carbon chain. In this case, it is a six-carbon chain, which makes it a hexane.

2. Number the carbon atoms in the chain in a way that the substituents get the lowest possible numbers. The cyclopentyl group is attached to the fifth carbon atom, and the methyl group is attached to the third carbon atom.

3. Include the names of the substituents as prefixes in alphabetical order, with their corresponding carbon number. In this case, we have a cyclopentyl group and a methyl group.

4. Combine the prefixes with the name of the main chain. The resulting name is 5-cyclopentyl-3-methylhexane.

In conclusion, the name of the compound is 5-cyclopentyl-3-methylhexane.

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The correct name for the compound is 2-cyclopentyl-4-methylhexane.

To determine the name of this compound, we need to break it down into its individual parts.

First, we have "2-cyclopentyl," which indicates that there is a cyclopentyl group attached to the second carbon atom of the main chain. The cyclopentyl group is a five-membered ring of carbon atoms.

Next, we have "4-methyl," which means that there is a methyl group attached to the fourth carbon atom of the main chain. The methyl group is a single carbon atom bonded to three hydrogen atoms.

Finally, we have "hexane," which indicates that the main chain of the compound consists of six carbon atoms.

By combining these parts, we get the name 2-cyclopentyl-4-methylhexane.

It is important to note that the other options provided, such as 1-cyclopentyl-1,3-dimethylpentane, 5-cyclopentyl-3-methylheptane, and 5-cyclopentyl-3-methylhexane, do not match the structure given in the question. Therefore, they are not the correct names for the compound.

In summary, the name of the compound is 2-cyclopentyl-4-methylhexane.

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The conductance of the electric current through the electrolytic solution increases with increase in concentration.

Electrolytic solutions are solutions that are capable of conducting an electric current due to presence of ions.

The current flowing in an Electrolytic solutions is calculated as;

Q = It

I = Q/t

where;

Increase in the concentration of the charges, increases the amount of charges in the solution and hence the conductance of the solutions will increase as well.

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A heterogeneous mixture is a mixture that contains two or more distinct components that are not uniformly distributed. For example soil, blood, sand, water etc.

Here are 10 examples of heterogeneous mixtures:

1. Salad: A salad is a mixture of different vegetables, fruits, and other ingredients that are not uniformly distributed.

2. Soil: Soil is a mixture of organic matter, minerals, water, and air, all of which are not uniformly distributed.

3. Blood: Blood is a mixture of plasma, red blood cells, white blood cells, and platelets that are not uniformly distributed.

4. Concrete: Concrete is a mixture of cement, sand, gravel, and water, all of which are not uniformly distributed.

5. Pizza: Pizza is a mixture of dough, tomato sauce, cheese, and toppings, all of which are not uniformly distributed.

6. Milk: Milk is a mixture of water, fats, proteins, and other components that are not uniformly distributed.

7. Granite: Granite is a mixture of different minerals, such as quartz, feldspar, and mica, that are not uniformly distributed.

8. Sand and water: When sand is mixed with water, it forms a heterogeneous mixture in which the sand particles are not uniformly distributed.

9. Vegetable soup: Vegetable soup is a mixture of vegetables, broth, and other ingredients that are not uniformly distributed.

10. Air: Air is a mixture of gases, such as nitrogen, oxygen, and carbon dioxide, that are not uniformly distributed.

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The compounds can be ranked from least positive to most positive character of the carbon atom as follows:

The carbon atom in each of these compounds will have increasing positive character as the molecule moves down the list. The least positive is carbon (C) and the most positive is CH3F.

The carbon atom is the sixth element in the periodic table and has an atomic number of 6. It has four electrons in its outer shell, which can form four covalent bonds. It has four protons in its nucleus, and the most common isotopes are carbon-12 and carbon-14. In nature, carbon can be found in four allotropic forms: diamond, graphite, fullerenes and nanotubes. Carbon is an important element in many organic molecules, including proteins, carbohydrates and lipids, and is essential for life.

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The amount of insurance expense for 2020 is $662.

To calculate the amount of insurance expense for 2020, we need to consider the change in the prepaid insurance balance from 2019 to 2020, as well as the cash paid for insurance policies during 2020.

The formula to calculate insurance expense is:

Insurance Expense = Prepaid Insurance at the beginning of the year + Cash paid for insurance policies during the year - Prepaid Insurance at the end of the year

Given the information provided:

Prepaid Insurance at the beginning of 2020 = Prepaid Insurance balance on 12/31/2019 = $2,325

Cash paid for insurance policies during 2020 = $567

Prepaid Insurance at the end of 2020 = Prepaid Insurance balance on 12/31/2020 = $2,230

Insurance Expense = $2,325 + $567 - $2,230

Insurance Expense = $2,325 + $567 - $2,230

Insurance Expense = $2,325 + $567 - $2,230

Insurance Expense = $2,892 - $2,230

Insurance Expense = $662

Therefore, the amount of insurance expense for 2020 is $662.

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Miso is a fermented Japanese condiment made primarily from rice, which is salted and fermented with ground soy for two months. The correct answer is (e)

Miso is a fermented Japanese condiment primarily made from ground soybeans and rice. The soybeans and rice are combined and fermented with the help of a specific mold called Aspergillus oryzae. This mold is responsible for the fermentation process that breaks down the proteins and carbohydrates in the soy and rice, leading to the development of the unique flavors and aromas of miso. Cabbage is not the primary ingredient in miso. Rice alone is not the main component. The bacteria mentioned, Bacillus, is not typically associated with miso fermentation. Hence The correct option is (e)

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Lactose, sucrose, or both sugars can ferment to produce a significant amount of acid, which causes the butt and slant to turn yellow.

This means that the isolate can ferment lactose, sucrose, or both, as seen by the emergence of yellow color in both slant and butt.

Acidic byproducts produced during glucose fermentation will cause the media's phenol red indicator to turn yellow. The tube will therefore be fully yellow following the first few hours of incubation.

The organism now needs to choose a different food source because all of the available glucose has been consumed. In the image shown, the bacteria Proteus Vulgaris and Salmonella Typhi are both H2S positive. Bacteria that are H2S positive can generate hydrogen sulfide from sources such.

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In a nucleophilic substitution reaction, a two-step mechanism involves first bond breakage to form a carbocation intermediate, followed by bond formation with the nucleophile.

In an SN1 reaction, the nucleophile attacks the substrate after the leaving group has departed, resulting in a two-step process. This reaction is generally favored by weak nucleophiles, as they are less likely to compete with the leaving group. On the other hand, an SN2 reaction involves a single concerted step in which the strong nucleophile directly attacks the substrate and the leaving group departs simultaneously. The higher concentration of a strong nucleophile increases the likelihood of an SN2 reaction. In summary, weak nucleophiles favor the SN1 mechanism, while strong nucleophiles in high concentration favor the SN2 mechanism for nucleophilic substitution
In a nucleophilic substitution reaction, a two-step mechanism involves first bond breakage to form a carbocation intermediate, followed by bond formation.

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One mole of  sucrose stores 5878 KJ of energy. Then 10000J or 10 kJ is stored by 0.0017 moles or 0.58 g of sucrose.

Sucrose is a disaccharide formed from one glucose and one fructose units. Sucrose is used as the table sugar. Sucrose can store the chemical energy as well as it can release it through decomposition.

One mole of sucrose stores an energy of 5878.8 KJ.

molar mass of sucrose = 342. 3 g/mol

then, no.of moles of sucrose which stores 10 KJ energy = 10 /5878.8 = 0.0017 moles.

Mass of 0.0017 moles = no.of moles × molar mass

mass = 0.0017 × 342.3 g/mol = 0.58 g.

Therefore, 0.58 g of sucrose stores 10 J of energy.

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The answer is

C) mole ratio

we find the energy to be approximately \(3.41 * 10^-19\) Joules is the answer.

To calculate the wavelength of a photon with a frequency of 61.7 MHz, we can use the formula: wavelength = speed of light / frequency. The speed of light is approximately\(3 * 10^8\) meters per second.

Converting the frequency to Hz (\(1 MHz = 10^6 Hz\)), we have \(61.7 * 10^6\)Hz.

Plugging these values into the formula, we get: wavelength =\((3 * 10^8 m/s) / (61.7 * 10^6 Hz).\)

Simplifying, we find the wavelength to be approximately 4.862 meters.

Now, to calculate the energy of a photon with a wavelength of 582.8 nm, we can use the equation: energy = Planck's constant × speed of light / wavelength.

Planck's constant is approximately \(6.63 * 10^-34\) Joule-seconds.

Converting the wavelength to meters (\(1 nm = 10^-9 m\)), we have \(582.8 * 10^-9 m.\)

Plugging these values into the equation, we get: energy =\((6.63 * 10^-34J·s) * (3 * 10^8 m/s) / (582.8 * 10^-9 m).\)

Simplifying, we find the energy to be approximately \(3.41 * 10^-19\) Joules.

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90 grams. When the state of an object changes, the mass doesn’t change.

*edited*

The total moles of atoms in a sample of propane, C3H8, that contains 13.7 moles of carbon atoms is 41.1 moles. The molecular formula for propane is C3H8. This means that one molecule of propane contains three carbon atoms and eight hydrogen atoms.

To find the total moles of atoms in the sample, we need to calculate the number of hydrogen atoms. We can do this by using the mole ratio of carbon atoms to hydrogen atoms in the molecule. Carbon atoms: 3 moles C in 1 mole C3H8Hydrogen atoms: 8 moles H in 1 mole C3H8If there are 13.7 moles of carbon atoms in the sample, then there must be:(13.7 moles C)(8 moles H / 3 moles C) = 36.27 moles H So the total number of moles of atoms in the sample is:13.7 moles C + 36.27 moles H = 49.97 moles (rounded to two decimal places)

However, we need to be careful with significant figures since the given value of 13.7 moles only has three significant figures. Therefore, the final answer should be rounded to three significant figures, giving:49.9 moles (rounded to three significant figures).Hence, the total number of moles of atoms in the sample is 49.9 moles.

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Answer:

They form ions.

Explanation:

Electrons are transferred from the metal atoms to the non-metal atoms.

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