An oil tanker holds 3.24 • 10^7 gallons of crude oil. The mass of the oil is 2.13 • 10^8 pounds. What is the density of the oil in kilograms per liter?

In order to answer this question we will need the properly balanced reaction, which the question already gave us:

C5H12 + 8 O2 -> 5 CO2 + 6 H2O

Then we need to focus on the compounds that the question is asking, which are C5H12 and 5 CO2, from the reaction we can also identify the molar ratio between both molecules, 1:5, that means that for every mole of C5H12, we will end up with 5 moles of CO2

Now let's find out how many moles of C5H12 are in 25.5 grams of it, we will use its molar mass to find the answer, molar mass is 72.15 g/mol

72.15 g = 1 mol

25.5 g = x moles

x = 0.35 moles of C5H12

Now we have 0.35 moles of C5H12, we know that molar ratio is 1:5, now let's see how many moles of CO2 we will have

1 C5H12 = 5 CO2

0.35 C5H12 = x CO2

x = 1.75 moles of CO2

And now we will do a similar step using CO2 molar mass in order to find the final mass, molar mass for CO2 is 44.01 g/mol

44.01 g = 1 mol

x grams = 1.75 moles

x = 77.02 grams of CO2

Answer:

AA+b Ac+b

Explanation:

All questions where they ask you about concentration or volume of a solution prepared with another solution can be solved using the following equation:

Where C1 is the concentration of the first solution, V1 is the volume of the first solution, C2 is the concentration of the second solution and V2 is the volume of the second solution. You only need to be careful to use the rigth units.

This particular question ask for the Volume of the second solution, V2. Then we need to solve for V2 in the previous equation:

For the thing to move, 2 joules were used.

There are numerous shapes that energy can take. Examples of these energies include gravitational energy, mechanical energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy, light energy, heat energy, and so on. Each form has the capacity to alter or change into the other forms.

Energy is a major factor in our daily lives because it is a fundamental need for humans. You need energy to move, rise from bed, or even merely to go down the road. Energy not only heats but also cools our man-made structures.

formula, joules = 1/2*kilogram*{[tex]\frac{meter}{sec}[/tex]}^2

joule = [tex]\frac{1}{2}[/tex]*4*1 = 2 joule

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The product of the reaction as it has been shown above is  butoxymethane.

A chemical reaction is an interaction that takes place between two or more chemical substances to yield a product (s). We should note that the reactants are written at the left hand side of the reaction equation while the products are written at the right hand side of the reaction equation. This is how we show  reaction on paper.

Having said this, the reaction that have been shown in the question would occur by an SN2 synchronous mechanism to yield butoxy methane product.

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The analogy that best describes theories is that theories are like clay because they can be molded to fit changing opinions.

A theory is a thorough explanation of a scientific phenomenon that incorporates laws, hypotheses, and facts. For example, the gravitational field hypothesis explains why fruits fall from trees and astronauts float in space. A theory can be related to a clay as it can be moulded as per the observations. The more observations a theory anticipates, the more tests it passes, and the more facts it explains, the longer its core premises hold true.

A theory should be consistent with new data. If not, the theory is changed or abandoned. The more observations a theory anticipates, the more tests it passes, and the more facts it explains, the longer its core premises hold true.

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Answer:

Explanation:

Here, we want to get the hydrate formula

To get the hydrate formula, we need to get the number of molecules of water

Now, to get this, we have to divide the number of moles of water by the number of moles of the anhydrous solid

The number of moles of water is given as 0.75 while that of the anhydrous solid is 0.0243

Mathematically, we have it that:

The hydrate formula is thus:

96kPa. Option C is correct

According to Gay Lussac's law, the pressure of a given mass of gas is directly proportional to the temperature provided that the volume is constant. Mathematically:

Substituting the given parameters to determine the new pressure P2

Therefore the new pressure is 96kPa

A change in the substrate's oxidation state occurs during redox reactions. Oxidation is the process of losing electrons or increasing an element's oxidation state.

Gaining electrons or lowering the oxidation state of an element or its constituent atoms are both examples of reduction.

An oxidation-reduction (redox) reaction is a chemical process in which two compounds exchange electrons. Any chemical process in which a molecule, atom, or ion suffers a change in its oxidation number as a result of acquiring or losing an electron is known as an oxidation-reduction reaction.

An oxidizing agent is a substance that "accepts" or "receives" an electron from a reducing agent in a redox chemical process. Therefore, an oxidant is any chemical that oxidizes another substance.

An electron is "donated" to an electron acceptor by a chemical species known as a reducing agent. Chemicals that are often used as reducing agents include the Earth metals, formic acid, oxalic acid, and sulfite compounds.

Pb gets oxidized.

Manganese (Mn) gets reduced.

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Answer: 0.108

Explanation:

use v1s1 = v2s2

here v1 = 2.7ml s1 = 4 M v2 = 100ml s2=?

The final pressure of 5.25L gas initially at 534 mmHg and 22 degrees celsius that is compressed to a final volume of 2.75 L is 1.31atm.

The combined gas law states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant.

The pressure of a gas can be calculated by using the combined gas law equation as follows:

P₁V₁/T₁ = P₂V₂/T₂

Where;

According to this question, a 5.25 L gas initially at 534 mmHg and 22 degrees celsius is compressed to a final volume of 2.75 L at a new temperature of 15 degrees celsius. The final pressure can be calculated as follows;

0.703 × 5.25/295 = P₂ × 2.75/288

0.0125 = 0.00955P

P₂ = 1.31atm

Therefore, 1.31 atm is the final pressure of the gas compressed to a lower volume of 2.75L.

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The energy in Joules required to change 49.75 grams of liquid water from 95 Celsius to 105 Celsius is 2082.54J.

Energy is the ability to do work. The energy needed to heat a substance can be calculated using the following formula:

Q = mc∆T

Where;

According to this question, 49.75 grams of liquid water needs to be changed from 95 Celsius to 105 Celsius. The energy needed can be calculated as follows:

Q = 49.75 × 4.186 × (105 - 95)

Q = 2082.54J

Therefore, 2082.54J is the energy required to change the liquid water.

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1) Convert milliseconds to seconds.

1 s = 1000 ms

72 ms is equal to 0.072 s.

Your system could not cool as effectively as it should due to refrigerant leakage. Your home cannot reach the target temperature due to your air conditioning system. However, it may also result in higher monthly energy costs.

Temperature is a unit used to represent hotness or coolness on any of a number of scales, including Celsius and Fahrenheit. According to temperature, heat energy will naturally move from a hotter (body with a high temp) to a colder (body with such a lower temperature) (one at a lower temperature)

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The reason why the Ionic and covalent bonds help arrange atoms into unique structures for proteins like hemoglobin is that the structure of a protein allows it to carry out its unique function.

The covalent bond is the kind of bond that exists between two atoms in which the electrons between the two atoms are shared. The electrons cloud of the bond lies between the two atoms. For the ionic bond, there is a transfer of the electrons from one atom to another. We ought to note that the transfer is  often from the metal to the non metal.

On the other hand, it should be noted that there are various kinds of bonding that are important to be able to keep the structure and the function of the protein. Aside from the covalent bonds that holds the atoms together, the ionic bonds could also be involved in the dipolar interactions that are responsible for the secondary structure of the protein.

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B. The structure of a protein allows it to carry out its unique function.

ur welcum

The solution is different from the original water being that the solution turns phenolphthalein pink (option B).

A base is any of a class of generally water-soluble compounds, having bitter taste, that turn red litmus blue, and react with acids to form salts.

A base is known to contain excessive amounts of hydroxide ions (OH-), which it releases in an aqueous solution.

Phenolphthalein is an indicator solution that appears colourless, however, when it is exposed to alkaline solution it turns pink.

This suggests that a basic solution turns phenolphthalein solution pink.

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When the moon is at point 2, it will be covering Florida, which will cause some areas of the earth to be dark while others will be light.

Our home planet is Earth. According to scientists, the formation of Earth and its moon coincided with that of the entire solar system. The estimated age of that event is approximately 4.5 billion years ago. The solar system's fifth-largest planet is Earth. Its diameter is roughly 8,000 kilometers.

We have life on our home planet, that also shields us from outer space. Our own planet, Earth, is a world unto itself. Earth, as third planet from the sun, is the only place in the entire cosmos where the existence of life has been established.

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Florida will be under the shadow of the moon at point 2, making some parts of the earth dark and others light.

A year is mainly divided into four seasons- winter, spring , summer and autumn. These seasons are experienced due to change in the position of earth around the sun

Earth is our home planet. According to scientists, the development of the Earth and its moon occurred simultaneously with that of the solar system as a whole. That incident occurred roughly 4.5 billion years ago, according to estimates. The fifth-largest planet in the solar system is Earth. It has a circumference of about 8,000 kilometers.

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a) The X is BaSO₄, b) The cation is Ag⁺ ions, c) another way to separate is by adding NaCl or NaSCN

It is given that the solution contains Ag⁺ and Ba²⁺ ions. In addition to Na₂SO₄, Ba²⁺ ions get precipitated to give BaSO₄ leaving the cation, Ag⁺.

The reaction would be,

Ag⁺ + Ba²⁺ ------Na₂SO₄---------> BaSO₄ + Ag+

Therefore,

a) The precipitate X that is formed would be BaSO₄ in the above scheme.

b) The cation that is left at Y is Ag⁺.

c) This reaction can also be carried out using NaCl and NaSCN. By using NaCl we could obtain, BaCl₂ and by using NaSCN we could get Ba(SCN)₂. Here both precipitates are soluble. The respective reactions are,

Ag⁺ + Ba²⁺ ------NaCl---------> BaCl₂ + Ag+

Ag⁺ + Ba²⁺ ------NaSCN---------> Ba(SCN)₂ + Ag+

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The initial 10.0 grams of water is a kind of intensive property.

What do you mean by intensive properties?

Intensive properties are those properties which do not depend upon the amount of the given substance. For example Temperature and pressure.

Generally, grams are used to represent concentrations. Therefore, always consider extensive. However, in the given question, the concentration is specified i.e. means fixed. So, the 10.0 grams of water become intensive in the given conditions.

Hence, the answer is an intensive property.

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Answer

Explanation

If two molecules of mercury oxide decompose into 2 molecules of mercury and 1 molecule of oxygen gas, then the equation for the reaction is shown below

Each row is independent from the other, so we can use the same method for each one.

Le'ts give a variable for each column:

- S: Symbol

- z: Z (Atomic number)

- a: A (Mass number)

- p: No of Protons

- e: No of Electrons

- n: No of Neitrons

- c: Charge

In the symbol column, the right supercript is the charge, so since the Symbol is:

The charge is 2+. We write as 2+, but in math we would write as +2, they are the same, but in different notations.

The atomic number and the symbol are always unique, so each element has always the same atomic number and the other way around too.

From a periodic table, we can see which Element corresponds to which atomic number Z.

On a periodic table, we can see that the atomic number of Mg is 12, so:

Also, the atomic number and the number of protons is always the same:

The mass number, a, is alwais the number of protons plus the number of neutrons:

Since we know that the mass number is 25 in this case, we can calculate the number of protons:

So it checks out with the number on the table.

Each proton has a charge of 1+ and each electron has a charge of 1-. In Math terms, we can say that each proton counts as +1 and each electron counts as -1.

Thus, the charge is the number of protons minus the number o electrons:

Since the charge is 2+ and there are 12 protons, we can say:

So, there are 10 electrons.

Putting altogether, we have:

And, by the names:

Symbol: Mg²⁺

Z: 12

A: 25

No. of Protons: 12

No. of Electrons: 10

No. of Neutrons: 13

Charge: 2+

The reaction involving the reactants Magnesium and Sulphuric acid results in the formation of Magnesium sulphate and hydrogen

Mg (s) + dil. H2SO4 (aq) ➡️ MgSO4 (aq) + H2 (g)

Magnesium is a solid compound. When magnesium reacts with dilute sulphuric acid, it forms aqueous magnesium sulphate and hydrogen gas.

The type of reaction involved is single replacement reaction with both oxidation and reduction happening simultaneously. During the process, heat would be released becoming an exothermic reaction.

If concentrated sulphuric acid is used in place of dilute sulphuric acid, magnesium would react with concentrated sulphuric acid and forms 3 products namely magnesium sulphate, Sulphurdioxide and Water.

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Covalent bonds are those bonds in which the atoms between which the bond is present share electrons. Each element retains its electrons but shares with the element with whom it creates the bond.

To graph a covalent bond there are different structures, for example the Lewis structure, which indicates the electrons in the form of points, then the number of points of the atom will be the valence electrons that the element has. The symbol of the element is enclosed in a circle and the electrons are drawn on the circle. The electrons that are shared overlap between the circles of both elements. In the following example you can see what I just described:

Explanation:

The question gives us the following reaction:

Pb(NO3)2 + 2 KI ---> PbI2 + 2KNO3

The equation tells us that 2 moles of potassium iodide (KI) produce 1 mole of lead(II) iodide (PbI2).

So:

2 moles KI ---- 1 mole PbI2

5 moles KI ---- x moles

x = 2.5 moles

Now let's transform 2.5 moles of PbI2 into grams:

m = n*MM

MM of PbI2 = 461 g/mol

m = 2.5*461 = 1,152.5 g

Answer: alternative "D" 1.15 x 10^3 g

The metal Strontium is symbolized by Sr, and since it is a metal its oxidation number is 0, so no charge.

In this reaction, the Sr will become 2+, so, since Cl is 1-, the proportion is 1 Sr to 2 Cl, so the unbalanced reaction is:

To balance it, we need to add a coefficient of 2 on HCl, so we have 2 H on both sides and 2 Cl on both sides.

The Sr is and continue balanced.

So, the balanced reaction is:

As we can see, the left part has Sr alone and H with Cl, while on the right side this changes, H is alone and Sr is with Cl. This means that Cl was displaced from H to Sr, so this is a single displacement reaction.

We can obtain the heat of formation required for the  chlorine tri fluorde as -1513 kJ.

Looking at the fact that a chemical reaction often involves a heat change we could define the enthalpy change which is the heat change of the reaction as the energy that was lost or gained in course of a reaction.

To obtain the heat of formation of chlorine tri fluorde, let us designate it as x ;

Using the formula;

Sum of enthalpy of formation of products - Sum of enthalpy of formation of reactants

-1196 =(0 + 271 + 0) - (x + (- 46))

-1196 = 271 - x + 46

-1196 = 317 - x

x = -1196  - 317

x = -1513 kJ

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Missing parts;

Consider the reaction 2ClF3 (g) + 2NH3 (g) → 6HF (g) + N2 (g) + Cl2 (g) △H-_1196 kJ Given the following enthalpies of formation, calculate AHf for CIF3 (9) NH3 (g)- 46 kJ/mol HF 9)271 kJ/mol kJ

0.966 ml concentrated acid must you add to obtain a total volume of 50.0 ml of the dilute solution.

A diluted solution is one that has a low solute content. A concentrated solution is one that contains a lot of the solute. The concentrated solution can be created by adding more solute to the dilute solution.

Considering that the moles of Nitric acid remain unchanged during the dilution process:

[tex]n_{H I}=n_{H I}[/tex]

Apply the following equality in terms of molarity

V[tex]_1[/tex]M[tex]_1[/tex]  = V[tex]_2[/tex]M[tex]_2[/tex]

The subscript 1 accounts for the solution before the dilution and 2 after the dilution, therefore, the required volume of 6.00 M acid is:

V[tex]_1[/tex]= V[tex]_2[/tex]M[tex]_2[/tex]/M[tex]_1[/tex]

= 50.0ml * 0.116 M/6.00 M

= 0.966 ml.

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The complete question is -

You wish to make a 0.116 M nitric acid solution from a stock solution of 6.00 M nitric acid. How much concentrated acid must you add to obtain a total volume of 50.0 ml of the dilute solution ?

The descriptions that the sub-atomic  particles can electrically attract or repel other sub-atomic particles and has a charge best suits for electrons and protons.

Sub-atomic particles are the basic constituents of an atom. Electrons, protons and neutrons are called  subatomic particles.

Electrons possess negative charge and protons have positive charge. Thus electrons attracts a proton and vice versa. Neutron is neutral and shows no attraction or repulsion.

Hence, The description that a sub-atomic particle having charge and electrically attract or repel other sub-atomic particle fit for both electrons and protons.

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There are protons, neutrons, and electrons, three types of subatomic particles. Protons and electrons, two of the subatomic particles, each have an electrical charge of one or the other. On the other hand, neutrons lack a charge.

The fundamental feature of matter known as electric charge, which is carried by some elementary particles, determines how the particles are affected by an electric or magnetic field.

Protons are positively charged particles that are found inside the atom's nucleus. Neutrons are found inside the atom's nucleus and are neutral particles.

Electrons are negatively charged particles that surround the nucleus by unclear paths.

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10.0 trillion DNA molecules is equal to 1.66 × 10–11 moles of DNA.

The correct option is A.

The directions needed for a creature to grow, endure, and reproduce are encoded in its DNA. DNA sequences must be converted into messages that can be utilized to create proteins, that are the complex molecules that carry out the majority of the work in our bodies, in order to perform these activities.

The DNA of a person can be found in almost all of their cells. The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondrial .

1 trillion = 10¹² DNA molecules

6.022 × 10²³ molecule = 1 mole

10¹² DNA molecules = 1 / 6.022 × 10²³ × 10¹²

                                 = 1.66 × 10–11 moles.

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The complete question is -

10.0 trillion DNA molecules is equal to how many moles of DNA?

A-1.66 × 10–11 moles

B-6.02 × 1010 moles

C-6.02 × 1036 moles

D-1.66 × 1010 moles

The tasks would Power, Structural, and Technical Systems employees most likely perform are option B. package steaks, use laboratory equipment, and know the standards for food storage facilities.

A technological machine is fixed of interconnected components that have been designed to satisfy a selected characteristic without, in addition, human design input. Technological structures transform, store, transport, or manage substances, energy, and/or statistics for a particular cause.

Individuals who paint in the electricity, Structural, and Technical structures pathway observe an understanding of engineering, hydraulics, pneumatics, electronics, energy, systems, and controls in the field of agriculture. They design agricultural structures in addition to equipment and gadget.

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