carbon footprint: given that fossil fuel combustion is the largest source of anthropogenic carbon dioxide emission worldwide, which fuel is most responsible for this emission?

The empirical formula of the compound C₄H₁₀O₁.

The empirical method of a chemical compound is the simplest entire range ratio of atoms present in a compound. The empirical formula of a compound is the most effective whole variety ratio of atoms of each detail in the compound.

Step 1: decide the masses. Step 2: decide the variety of moles by dividing the grams by means of the atomic mass. Step 3: Divide the wide variety of moles of every detail through the smallest quantity of moles. Step 4: Convert numbers to complete numbers.

                                         divide by smallest

64.9% C /12 = 5.4             5.4/ 13.5  = 4

13.5% / 1 H  = 13.5             13.5 /1.35  = 10

21.6% / 16 O  = 1.35          1.5/1.5 = 1

Empherical formula = C₄H₁₀O₁

Learn more about empirical formula here:-https://brainly.com/question/1603500

#SPJ4

The missing item which would complete this alpha decay reaction is: C. ²⁵³Fm₉₈.

In Science, there are three (3) main types of radioactive decay and these include the following:

An alpha decay can be defined as a type of radioactive decay in which the atomic nucleus of a radioactive element emits an alpha particle, thereby, producing chemical elements that have different atomic nucleus.

During an alpha decay, a radioactive element such as fermium (Fe) with a mass number of 257 would be decreased by four (4) while its atomic number (number of protons) of 100 is decreased by two (2), to produce an isotope and an atom of Helium (⁴He₂), as illustrated in the chemical reaction below:

²⁵⁷Fe₁₀₀  ---->   ²⁵³Fm₉₈ + ⁴He₂

Read more on alpha decay here: https://brainly.com/question/23303931

#SPJ1

In alpha decay both the atomic number and mass number of the atom changes. Whereas, for beta decay only atomic number changes. The horizontal change is representing the change in atomic number and vertical change is for mass number.

Radioactive decay is the process of nuclear decay of an unstable radioactive atom by the emission of charged particles such as alpha, beta or gamma to form a stable isotope.

The nuclear decay by the emission alpha particle is called alpha decay in which the mass number decreases by 4 units and atomic number changes by 2 units. Hence the graph of alpha decay shows both vertical and horizontal change.

In beta decay beta particles are emitted where, no change occurs in mass number but atomic number increases by one. Hence, the graph will only shows the horizontal change.

To find more about radioactive decay, refer here:

https://brainly.com/question/1770619

#SPJ1

The final temperature of the mixed water is 17.43°C.

Principle of Calorimeter:

The body at a higher temperature releases heat while the body at a lower temperature absorbs heat. The principle of calorimetry indicates the law of conservation energy, i.e. the total heat lost by the hot body is equal to the total heat gained by the cold body.

From the calorimeter principle we have:

heat loss by hot water = Heat gained by the cold water

The formula for the heat gained or loss:

Q = m.c.ΔT

Q = heat gained or loss

c = specific heat

ΔT = temperature change

m1 = 100g

m2 = 75g

m2c ΔФ2 = m1c ΔФ1

75 × (71.6-T) = 100× ( T - 23.2)

5370 - 75T = 100T - 2320

175 T = 3050

T = 17.43°C

Therefore the final temperature is 17.43°C

To know more about thermochemistry refer to the link given below:

https://brainly.com/question/29137878

#SPJ4

The phrases that describes the similarities between problem space theory and how the brain looks at problems is option C: They can occur quickly or slowly.

The category of problem-solving techniques used in social science includes the problem space theory. The problem space theory employs the strategy of characterizing the issue before seeking a resolution. The focus of a problem space is on the stages and objectives involved in solving a problem rather than providing details of a solution.

Note that Your heart rate increases as your brain releases a surge of adrenaline, causing you to become stiff and shake. Despite the absence of difficulties, the brain is programmed to find solutions. The brain invents a new problem to remedy when there is nothing to tackle.

Learn more about brain  from
https://brainly.com/question/1247675

#SPJ1

See full question below

Which of the following phrases describes the similarities between problem space theory and how the brain looks at problems?

They have only three steps.

They can only be used in a laboratory setting.

They can occur quickly or slowly.

They are biased against the scientific method.

The energy of a photon whose frequency is 5.94 × 10¹⁷ Hz is 3.94 × 10-¹⁶J.

The energy of a photon wave can be calculated by using the following formula:

E = hf

Where;

According to this question, a photon has a frequency of 5.94 x 10¹⁷ Hz. The energy can be calculated as follows:

E = 6.626 × 10-³⁴J/s × 5.94 x 10¹⁷ Hz

E = 3.94 × 10-¹⁶J

Therefore, 3.94 × 10-¹⁶J is the energy of the photon.

Learn more about energy at: https://brainly.com/question/2393994

#SPJ1

False; after coming into contact with metal cations, methylene blue solution leaches out of the lichens. Because they can accept electrons, metal cations are very electronegative.

Methylene, often known as carbene, is an organic molecule having the chemical formula CH 2 that is also formally known as methylidene and hydrocarbon (also written [CH 2]). It is a colourless gas that only persists in diluted form or as an adduct, fluorescing in the mid-infrared range. The most fundamental carbene is methylene.

A lichen is a symbiotic association between many organisms, such as a cyanobacterium or an algae. In addition to being unique from algae, cyanobacteria are also known as blue-green lichen.

Learn more about methylene here

https://brainly.com/question/24020840

#SPJ4

The products for the balanced reaction of hydrochloric acid (HCL) and magnesium hydroxide (mg(oh)2) are salt (magnesium chloride ) and water.

The balanced equation is:

[tex]Mg(OH) _{2}+2HCl - MgCl_{2}+2H_{2} O[/tex]

What happens when magnesium hydroxide reacts with HCl?

Does magnesium hydroxide dissolve in HCl?

Magnesium Hydroxide is soluble in dilute hydrochloric acid.

Thus, products obtained from the reaction are salt and water.

To know more about magnesium hydroxide:

https://brainly.com/question/22367865

#SPJ4

The new pressure will be 1.45atm.

Ideal gas equation gave a relation between pressure, temperature and volume. It can be expressed as:

PV=nRT

Where, P is pressure, V is volume and T is temperature

The given data:

[tex]T_{1}[/tex] = 280K

[tex]T_{2}[/tex]= 406K

[tex]P_{1}[/tex] = 1 atm

[tex]P_{2}[/tex] = ?

The amount of unknown pressure can be determined by using the formula:

P1/T1=P2/T2....(i)

Now, put the values of given data in above equation.

P2= P1T2/T1

P2=1×406K / 280

P2 = 1.45atm

Therefore, the new pressure will be 1.45atm

To know more about pressure.

https://brainly.com/question/26205593

#SPJ4

The concentration of H₃PO₄ that is needed to neutralize 17.61 ml of 2.869 m NaOH when 31.16 ml of H₃PO₄ is used is 0.540 M.

The balanced equation is given as :

H₃PO₄    +   3NaOH    ------>  Na₃PO₄   +   3H₂O

number of  moles of  NaOH = 0.0176 × 2.869

                                  = 0.050 mol

moles of moles of  H₃PO₄  needed = 0.050 / 3 =0.0168 mol

molarity of  H₃PO₄  = moles / volume in L

                                = 0.0168 / 0.0311

                                = 0.540 M

Thus,  The concentration of H₃PO₄ that is needed to neutralize 17.61 ml of 2.869 m NaOH when 31.16 ml of H₃PO₄ is used is 0.540 M.

To learn more about molarity here

https://brainly.com/question/8732513

#SPJ4

Answer:

B is the outer part atom .

The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). The atoms have different properties based on the arrangement and number of their basic particles.SO the hydrogen atom (H) contains only one proton, one electron, and no neutrons

Explanation:

Answer:

Group VII are called halogens because react with metals to form salts

The concentration of solution of sodium hydroxide is  4 g/dm³ as per the molar concentration concept, to convert mole/dm³ to g/dm³ multiply the concentration by molar mass, which is 40 g.

Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.

The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.

Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.

The molar mass of sodium hydroxide is 40 g thus, concentration in mole/dm³×40, that is 0.10×40= 4 g/dm³.

Thus , the concentration in g/dm³ is 4 g/dm³.

Learn more about molar mass, here:

https://brainly.com/question/13152455

#SPJ1

The  spin quantum number will be 2 and 2.5 and multiplicity in each case will be 5 and 6.

The angular momentum of such an electron is described by its spin quantum number (ms). An electron carries orbital angular momentum in addition to angular momentum around its axis of rotation. The Spin Quantum Number (s) really does have a magnitude (1/2) and a direction (+ or -) since angular momentum would be a vector.

(i) If an atom has 4 electrons then it will have total

Total spin quantum number = 1/2+1/2+1/2+1/2 = 4/2=2

Multiplicity = 2S+1= 2×2+1=5

(ii)  If an atom has 5 electrons then it will have

Total spin quantum number = 1/2+1/2+1/2+1/2+1/2 = 5/2 = 2.5

Multiplicity = 2S+1= 2×2.5+1=6

Therefore, the spin quantum number will be 2 and 2.5

To know more about  multiplicity

https://brainly.com/question/14266366

#SPJ4

The only ion that is seen to be a negative ion in cobalt III sulfide is the sulfide ion.

The term anion just means a negative ion. We know that when we have an ionic compound, the ionic compound would have a positive ion which would have a plus sign and a negative ion which would have a minus sign.

We have to look at the compound that is called cobalt sulfide. there are two ions here, the cobalt III ion and the sulfide ion. The cobalt III ion is positive while the sulfide ion is negative.

Learn more about anion:https://brainly.com/question/15578817

#SPJ1

Apply to a gas molecule's kinetic energy is not the same as telling you the speed, so calling a thermometer a speedometer for atoms is deceptive.

Uniformly, if a sample of water is put down in the freezer, its molecules begin to move slower (with a lower speed) and this is thought the back by a lower thermometer reading. It is in this feeling that a thermometer can be thought of as a speedometer. As John Rennie broaches in the comments, thermometers work for solids, liquids, and gasses, whereas the temperature is comparable to the average. A thermometer would be an average speedometer for the primary molecules of a substance or structure, not specifically separate atoms.

So we can conclude that thermometers compute the average velocity of atoms in a given material or order volume.

Learn more about thermometers here: https://brainly.com/question/2339046

#SPJ1

The pOH of this solution is 0.3 and the pH of the solution is 13.3 .

What is pH ?

The pH of a food is a direct function of the free hydrogen ions present in that food. Acids in food release free hydrogen ions. Hydrogen ions give acidic foods their characteristic sour taste. Therefore, pH can be defined as a measure of free acid. More specifically, pH is defined as the negative logarithm of hydrogen ion concentration. The pH range is 0 to 14. The pH of pure water is exactly 7, so pH 7 is neutral. Values ​​less than 7 are acidic. Values ​​above 7 are basic or basic.

Foods are generally classified as “acidic foods” (low pH, pH 4.6 or less) or “weakly acidic foods” (high pH, ​​pH 4.6 or higher). Safe food storage is determined by the pH of the food. Acidic foods such as fruit and pickles can be safely canned in a tin can with a hot water bath. A combination of acid and hot water (212°F) destroys perishable organisms such as mold and yeast. Proper cooking water canning processes are important to prevent the growth of acid-tolerant molds and yeasts that can lead to elevated pH levels. The pH of borderline foods such as figs and tomatoes can easily exceed 4.6, so lemon juice or citric acid should be added before canning with boiling water. Low-acid foods such as vegetables and meat should be processed in a pressure preserver for safety.

To know about the pH , click the link given ;

https://brainly.com/question/26424076

#SPJ4

The solubility of the strontium iodate is 3.1 * 10^-3 M.

The term solubility has to do with the amount of a solid that is dissolved in water. We know that there are some substances that are able to dissolve better in water than others.

We now have to find the solubility of the strontium iodate from the following;

Ksp = [x] [2x]^2

Ksp = 4x^3

The solubility of the substance is x.

x= ∛Ksp/4

x =∛ 1.14 x 10^-7/4

x = 3.1 * 10^-3 M

The solubility of the solid is obtained as  3.1 * 10^-3 M.

Learn more about solubility:https://brainly.com/question/28170449

#SPJ1

The statement best describes what Granger believes to be the major difference between man and the phoenix: that the phoenix recognizes when they have made a mistake and eventually will learn not to repeat it. Meanwhile, although a man recognizes his fault, he will continue to repeat them.

What does Granger say about the men and phoenix comparison?

Phoenix is a mythological creature that would burn itself to death only to be reborn from the ashes. As well as humans, we tend to cyclically destroy ourselves and our societies only to build them up again. Granger hopes that eventually, men will learn the lessons from history and stop destroying society.

Learn more about philosophy here https://brainly.com/question/27990948

#SPJ4

The result of the test is that the smaller object will have a greater change in motion. Option A

In the simplest sense of the word, a force could be regarded as a push or a pull. We can see that the object irrespective of the mass of the object would continue to be at rest until it is acted upon by a force.

In this question, we are told that Joey is thinking about applying an equal push force to two objects, one with a small mass, and one with a large mass. The force that could move the small mass may not move the large mass due to inertia.

Learn more about inertia:https://brainly.com/question/3268780

#SPJ1

Polyatomic ion is OOH

Polyatomic ion are ion which consist of more than one atom and atom in a polyatomic ion are usually covalently bonded to one another and therefore stay together as a single or charged unit and here OOH there are two oxygen atom and one hydrogen atom that's it is polyatomic ion

Know more about ions

https://brainly.com/question/17572278

#SPJ1

No, we cannot say that if the IR spectrum is recorded for 2 samples using the same sampling method then the resulting IR spectra are not identical.

             Because, in general, it means they have the same functional groups but do not that they have the same chemical compound, different molecules have the same functional groups and stereochemistry is not taken into consideration so these compounds can be enantiomers.

The distinction between a carboxylic acid and a ketone using the IR spectroscopy method is that both compounds have C=O but the ketone does not have OH stretch and distinguish between an aldehyde and a ketone using spectroscopy method that compounds have C=O stretch but aldehyde should have C-H stretches between the carbonyl carbon and the aldehydic Hydrogen.

To read more about the IR spectrum:

https://brainly.com/question/15452269

#SPJ4

The rate of reaction when 0.4g of zinc trioxocarbonate (iv) reacted with dilute hydrochloric acid to produce zinc chloride and carbon (iv) in  2 minutes is 0.0016 mol/min.

The rate of a reaction is the time taken for product molecules to appear or the time taken for reactant molecules to be converted.

Or

The equation of the reaction is given below:

ZnCO₃ (s) + 2 HCl (aq) ---> ZnCl₂ (aq) + H₂O (l) + CO₂ (g)

Molar mass of zinc carbonate = 125.39=8 g/mol

Moles of zinc carbonate converted = 0.4 / 125.38

Moles of zinc carbonate converted = 0.0032 moles

Time taken = 2 minutes

Rate of reaction = 0.0032/ 2

Rate of reaction = 0.0016 mol/min

Learn more about the rate of reaction at: https://brainly.com/question/24795637

#SPJ1

The rate constant for the reaction is the relation between the concentration of the reactant and the chemical rate of reaction.

The rate constant of the chemical reaction is the proportionality constant  that describes the relationship between the concentration of the reactants and the chemical rate of reaction. The symbol of rate constant is k. Rate is depends on the temperature.  unit for the zero order reaction is : L⁻¹ s⁻¹. unit of rate constant for the first order reaction is : s⁻¹. unit for the rate constant for second order reaction is : mol⁻¹ L s⁻¹.

Thus, The rate constant for the reaction is the relation between the concentration of the reaction and the chemical rate of reaction.

To learn more about rate constant here

https://brainly.com/question/20305871

#SPJ4

The molarity or the molar concentration of the KOH solution is 0.18M.

The equation of reaction for KOH and HCl is,

KOH + HCl → KCl + H₂O

As we can see,

Moles of KOH = Moles of HCl.

We also know,

Moles = molarity x volume.

Molarity of KOH x Volume of KOH = Molarity of HCl x Volume of HCl

Volume of KOH is 25 ml.

Molarity of HCl is 0.212M.

Volume of HCl is 21.83 ml.

Putting values,

Molarity of KOH x 25 = 0.2120 x 21.83

Molarity of KOH = 0.18M.

The concentration of KOH solution is 0.18M/.

To know more about molarity, visit,

https://brainly.com/question/26255204

#SPJ4

The electron dot structure that correctly illustrates diatomic nitrogen with a triple bond is of diatomic nitrogen which is N≡N.

A Lewis Structure is a simplified representation of the valence shell electrons in a molecule. It is used to show the arrangement of the electrons is arranged around atoms in a molecule.

Usually in Lewis Structure, Electrons are represented by dots but in the case of bonds such as given in the given question, they are represented by lines.

Thus the electron dot structures that correctly illustrate diatomic nitrogen with a triple bond is of diatomic nitrogen which is N≡N.

If you need to learn more about bond structure, click here

brainly.com/question/13939420

#SPJ4

2.00 [H3PO4] [H₂ PO] = 2.00 X [H₂ PO₁]

The first dissociation of phosphoric acid involves the species phosphoric acid, H2 PO4, and dihydrogen phosphate, H2 PO. The formula for the acid dissociation constant is: Ka, =2.42

the logarithm of the log On both sides of the mentioned equation, ka1 =

Pн = PKA + log [H, PO4)

Using definitions

[H3PO4] The renderson equation mentioned above will be utilized to determine the relative concentrations. log PH - Pka, 2.42; [H2 PO] =0.3

I log x = 2 = 109

Thus, X= 2.00 [H3PO4] [H₂ PO] = 2.00 X [H₂ PO₁]

Dihydrogen phosphate is present at higher concentrations than phosphoric acid.

learn more about concentrations here:

https://brainly.com/question/13872928

#SPJ4

Answer:

Explanation:nitrous acid

Answer: 6.59 x 10^24 formula units

Explanation: Formula units are another word for atoms, meaning we use Avogadro's number (6.022x10^23 atoms per mole), we multiply 10.95 by Avogadro's number to get the answer