A mixture of hydrocarbons contains 33.2% hexane, C6H14, 10.7% octane, C8H18, and 56.1% heptane, C7H16. The mixture is combusted in an excess of oxygen. What mass of CO2 is generated from the combustion of 12.4 kg of the mixture?

Answer:

3M

Explanation:

moles ÷ liters = molarity

4.8 ÷ 1.6 = 3M

In 1 minute, a galvanic cell with a current of 0.30 A would pass a charge of 18,300 C (coulombs) through the cell.

To calculate the charge passed through the cell, we use the formula:

Charge (C) = Current (A) * Time (s)

Since the current is given as 0.30 A and the time is 1 minute, we need to convert the time to seconds. There are 60 seconds in a minute, so 1 minute is equal to 60 seconds.

Now we can substitute the values into the formula:

Charge (C) = 0.30 A * 60 s = 18 C

However, the given formula constant (f) is in units of C/mol. To convert from C to mol, we need to divide the charge by the Faraday constant (f), which is 96,500 C/mol.

Charge (mol) = \frac{Charge (C) }{f }= \frac{18 C }{ 96,500 C/mol }≈ 0.00019 mol

Therefore, the charge passed through the cell in 1 minute is approximately 18,300 C.

learn more about galvanic cell Refer: https://brainly.com/question/32132953

#SPJ11

Answer:

Zebra- consumer

Tiger- consumer

Worm- decomposer

Tree-Producer

Molded bread- decomposer

Plant- producer

Answer:

Explanation:

Dandelion plant produces light and feathery seeds .

Zebra consumes / eats grass so it is a consumer .

Answer:

Explanation:

__________________________________________________________

According to Answers,

There is one covalent bond in a chlorine molecule. The formula for a chlorine molecule is Cl2, which means that there are two chlorine atoms bonded together per molecule. The structural formula for a molecule of chlorine is Cl-Cl, in which the line in between the symbols for the two atoms represents a single covalent bond.

__________________________________________________________

Hope this helps! <3

__________________________________________________________

The addition of water vapor to the system will not directly affect the amount of N₂ produced in the given reaction.

The balanced equation shows that the production of N₂ is determined by the stoichiometry of the reactants, namely 4 moles of ammonia (NH₃) reacting with 3 moles of oxygen (O₂) to produce 2 moles of nitrogen gas (N₂). The presence of water vapor (H₂O) does not participate in the reaction as a reactant or a product. Therefore, the amount of N₂ formed will remain the same regardless of the presence or addition of water vapor.

However, it is worth noting that the addition of water vapor may indirectly affect the reaction by altering the conditions or equilibrium of the system. For example, the presence of water vapor could influence the reaction kinetics, the temperature, or the concentration of reactants. These factors could potentially impact the rate of the reaction or the position of the equilibrium, which might have an indirect effect on the final amount of N₂ produced. But without specific information about the conditions and the influence of water vapor, it cannot be determined how the amount of N₂ will be affected in this particular scenario.

for more questions on water
https://brainly.com/question/19491767
#SPJ8

An 8.51g sample of an unknown salt is dissolved in 150g water in a coffee cup calorimeter, leading to a temperature increase from 23.7 °C to 28.54 °C. The mass of the formed solution is 159 g.

An 8.51g sample of an unknown salt (MM=116.82g/mol) is dissolved in 150g water in a coffee cup calorimeter. This means that we have a solution formed by 8.51 g of solute and 150 g of solvent. The mass of the solution is equal to the sum of the mass of the solute and the mass of the solvent.

\(m = m_{solute} + m_{solvent} = 8.51 g + 150 g = 159 g\)

The mass of the solution does not vary with the change in the temperature caused by the solution of the salt.

An 8.51g sample of an unknown salt is dissolved in 150g water in a coffee cup calorimeter, leading to a temperature increase from 23.7 °C to 28.54 °C. The mass of the formed solution is 159 g.

Learn more: https://brainly.com/question/16104165

The property makes the materials used in fiber optic cables is:

C. High density

They transfer data signals in the form of light and travel hundreds of miles significantly faster than those used in traditional electrical cables. Fiber is immune to electrical interference. There is no cross - talk between signals in different cables and no pickup of environmental noise. Information traveling inside the optical fiber is even immune to electromagnetic pulses generated by nuclear devices.

Thus, correct option is C.

Find more information about Fiber optic cables here:

brainly.com/question/116766

Answer:

The mercury with volume of 25 cm³ having weight of 340 g.

Explanation:

Given data:

Density of mercury = 13.6 g/cm³

Volume of mercury = 25 cm³

Mass of mercury = ?

Solution:

We will apply density formula.

d = m/v

13.6 g/cm³ = m/ 25 cm³

m = 13.6 g/cm³ × 25 cm³

m = 340 g

The mercury with volume of 25 cm³ having weight of 340 g.

Explanation:

Different isotopes of an element have different numbers of mass number

Answer:

The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of the sound.

Explanation:

Our current understanding of the atom is based on Dalton's early 19th-century idea of atomism, which was developed from meteorological investigations. John Dalton was just a meteorologist, an expert on color blindness, and a teacher, but he will be most widely recognized for creating the idea of atomism.

A scientist is someone who meticulously gathers data and uses it to develop theories, test those hypotheses, and further knowledge and understanding. Despite the fact that the name "scientist" predates Aristotle by more than two millennia, he is frequently referred to as the first scientist. He invented the methods of reasoning, observation, inquiry, and demonstration in Greece in the fourth century BC.

Because they provide specialized explanations for how the world functions, scientists play a crucial role in society. Science is a powerful tool for survival, despite the fact that it doesn't always provide us with joy, and humans have spent considerable time starting to figure out how to do both.

To know more about Scientist visit:

https://brainly.com/question/30668213

#SPJ4

Answer:

d = 8.96 g/cm³

Explanation:

Given data:

Volume of sample = 10.0 cm³

Mass of copper = 89.6 g

Density of copper = ?

Solution:

Formula:

d = m/v

d = density

m = mass

v = volume

by putting values,

d = 89.6 g/ 10.0 cm³

d = 8.96 g/cm³

Answer: 8.59 L of oxygen gas are needed to produce 100 kJ of energy at STP

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number \(6.023\times 10^{23}\) of particles.

Standard condition of temperature (STP)  is 273 K and atmospheric pressure is 1 atmosphere respectively.  

1 mole of every gas occupy volume at STP = 22.4 L

The balanced chemical reaction is:

\(2C_6H_6(I)+15O_2(g)\rightarrow 12CO_2(g)+6H_2O(g)\)

3909.9 kJ of of energy is produced by  = \(15\times 22.4=336L\)

100 kJ of oxygen gas are needed to produce = \(\frac{336}{3909.9}\times 100=8.59L\)

Answer:

An ion is charged because the number of electrons does not equal the amount of particles.

Explanation:

Can be positive (meaning more protons than electrons) and it can be negatively charged (meaning there are more electrons than protons).

Hope this helps!

Answer:

An ion has a charge because the number of electrons dont equal the amount of protons in the molecule or atom.

Explanation:

The negative or positive charge depend on wether the atom or molecule has more electrons(-) or protons(+).

Answer:

O

Explanation:

they have O valence electrons

For the chemical reaction, 2HBr (aq) +Ba(OH)2​→2H2​O(l)+BaBr2​(aq), the net ionic equation is 

2H+(aq)+2Br-(aq)+Ba+2(aq)+2OH-(aq)---> 2H2O(l)+Ba+2(aq)+   

The only molecules or ions that are actively participating in the reaction or those that change are included in a net ionic equation. The ions of the spectator are absent from this equation. You can get this equation by leaving out the spectator ions from the full ionic equation. We emphasize the molecules that change in the process by using net ionic equations. It makes it simple to identify the chemicals that are driving a reaction. 

2HBr (aq) +Ba(OH)2​→2H2​O(l)+BaBr2​(aq) 

2H+ + Br2- + Ba+ +2OH-  à 4H+ +2O2- +Ba+  +Br2-

The net ionic equation can be written using the entire ionic equation. We start by determining the spectator ions.The spectator ions will have the same charge and state of matter in the reactants and products when examining the entire ionic equation. The bromine ion and the barium ion remain unchanged during this reaction. These are regarded as spectator ions as a result. We are left with the net ionic equation after removing the spectator ions. The following equation's net ionic formula is 

2H+(aq) + 2OH-(aq) -> 4H+(1)+2O22.   (1)

Charge on the left: +2 + (2) = 0. 

+4+(4)=0 for the right-side charge. 

The ionic equation is balanced. 

To learn more about net ionic equation visit :https://brainly.com/question/13879496

#SPJ4

The equation to show that hydrocyanic acid (HCN) behaves as an acid in water is: HCN + H2O → H3O+ + CN-

When hydrocyanic acid (HCN) is dissolved in water, it ionizes and releases a hydrogen ion (H+) into the solution. The equation representing this ionization is:

HCN + H2O → H3O+ + CN-

In this equation, HCN acts as an acid by donating a proton (H+) to water. The water molecule (H2O) accepts the proton, forming a hydronium ion (H3O+). The remaining part of the hydrocyanic acid molecule, CN- (cyanide ion), is the conjugate base.

The presence of the hydronium ion (H3O+) in the solution indicates the acidic behavior of hydrocyanic acid in water. The release of the hydrogen ion is characteristic of acids, which donate protons to a solvent or another substance.

To learn more about hydrocyanic acid, refer:

brainly.com/question/10516733

#SPJ11

Answer: B

Explanation: Have to be careful here.Clearly, the samples could have different mass, and COULD have different volume and they could be either solid, liquid or gas.

Strawberry Hope: "Hey Strawberry Cow here! Hope this helps! Hope you have a great afternoon!"

~Strawberry Cow~

Under the same conditions of temperature and pressure, three different samples of the same uniform shape.

The density of a substance is in intrinsic property. Irrespective of the temperature and pressure or any other condition, the density of a substance will not change.

Mass is the quantity of matter in a substance and it is not affected by the temperature or pressure of the object.

The volume of the a substance changes with change in temperature and pressure but we have been told that these conditions are the same so the volume of the object does not change.

However, if the objects are exactly uniform, at the same temperature and pressure, the objects will have the same shape.

Learn more: https://brainly.com/question/9196460

Answer:

89-91=1 the answer is 1molar mass

The structure of the minor product formed by intramolecular aldol cyclization of heptane-2,5-dione is likely to be 3-hydroxy-2-cyclohexenone or 2-cyclohexen-1-one.

The intramolecular aldol condensation of heptane-2,5-dione produces a six-membered ring intermediate, which can undergo dehydration to form the final product.

The minor product formed by this reaction is likely to be a cyclic enol intermediate, which can tautomerize to the corresponding keto form. This product would have a quartet peak in the 1H NMR spectrum, indicating the presence of a proton that is coupled to three adjacent protons.

Assuming the ring closure occurs between the carbonyl group at position 2 and the α-carbon at position 5, the cyclic enol intermediate would be a 3-hydroxy-2-cyclohexenone, which can tautomerize to form the corresponding keto form, 2-cyclohexen-1-one. The proton at position 4 would be coupled to the protons at positions 3, 5, and 6, resulting in a quartet peak with a coupling constant of around 6-8 Hz.

To know more about intramolecular aldol condensation refer here:

https://brainly.com/question/20340793#

#SPJ11

Answer:

30

Explanation:

use the keep,change,change method.

19 + 11

19,keep, "-" change to addition, -11,change to positive

now use this

19 + 11 = (30 )

1) Mechanical agent

2) Biological agent

3) Physical agents

4) Physical agents

Weathering is the process by which rocks, minerals, and soils are broken down into smaller particles by physical, chemical, and biological agents.

These agents of weathering can act together or independently to break down rocks and minerals into smaller particles, which can then be transported by wind, water, and other geological processes to create new landforms and soil. Weathering plays an important role in the formation of soils and in the shaping of the Earth's surface over time.

Learn more about weathering:https://brainly.com/question/23449272

#SPJ1

Answer:

The answer is A  S8 + O16 → 8SO2

Explanation:

The balanced chemical equation is -:

S₈ + O₂-----> 8SO₂  therefore (d) is correct .

A balanced chemical equation is an equation that has equal numbers of atoms for each element both on the reactant and product sides.

Methods to balance the chemical equation -:

The number of atoms for a given element is calculated by multiplying its coefficient with the element’s subscript in its chemical formula.

The coefficients in front of the formulas to show how many molecules of that material are used or produced.

Hence , the balanced chemical equation is -:

S₈ + O₂-----> 8SO₂ ,hence option (d) is correct .

Learn more about balanced chemical equation, here:

https://brainly.com/question/12192253

#SPJ6

The rank of the following according to the decreasing bond length is c) single bonds > b) double bonds > a) triple bonds.

The bond length is the distance between the nuclei of the two bonded atoms. Generally, the strength of a bond increases with the number of bonds, and thus the bond length decreases.

Therefore, the order of decreasing bond length is as follows:

c) single bonds > b) double bonds > a) triple bonds

This is because a single bond involves the sharing of one pair of electrons between two atoms, a double bond involves the sharing of two pairs of electrons, and a triple bond involves the sharing of three pairs of electrons.

As the number of shared electron pairs increases, the bond becomes stronger, and the bond length decreases.

learn more about electrons here:

https://brainly.com/question/1255220?utm_source=android&utm_medium=share&utm_campaign=question

#SPJ11

when the temperature of an isolated system decreases while the surroundings of a non-isolated system gains heat.

Answer: the mole

Explanation:

The mole is the unit of amount in Chemistry.

It provides a bridge between the atom and the macroscopic amounts of material that we work with in the laboratory.

Answer:

B.

Explanation: hope this helps

Benzene

Answer:

The right lower quadrant

The left lower quadrant

Explanation:

Those quadrants contain the ovaries and I just got it correct on the assignment.