1What is one major difference between fossil fuels and biofuels?
ABurning fossil fuels releases greenhouse gases; burning biofuels releases no greenhouse gases incorrect answer
B Fossil fuels exist in unlimited supply; our supply of biofuels may run out someday incorrect answer
C Fossil fuels are very expensive to manufacture; biofuels are very inexpensive to manufacture incorrect answer
D You can drive farther on a single tank of fossil fuel than you can on a single tank of biofuel

More reactants have more atoms to react to form more products.

More than one, but not all, of the reactions described above could occur

Electrolyte solutions conduct electricity as a result of the movement of electrons inside the solution.

A solution that is electrically conductive and typically contains ions, which are atoms or molecules that have gained or lost electrons, is referred to as an electrolyte. This leads to frequent use of the term "ionic solutions," however there are some instances where the electrolytes are not ions.

The three different kinds of strong electrolytes are salts, strong bases, and strong acids.

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Answered it coz of you

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Answer:

the answer is B

The fact that there are more possible combinations for amino acids than the number of amino acids themselves implies that each amino acid can be encoded by multiple codons.

A codon is a sequence of three nucleotides in DNA or RNA that corresponds to a specific amino acid.

There are 20 standard amino acids used to build proteins in living organisms. However, there are 64 possible three-letter combinations of nucleotides (4³) that can be used to form codons. This means that on average, there are more than three codons that can encode each amino acid.

To calculate the number of codons per amino acid on average, we divide the total number of codons (64) by the number of amino acids (20). Therefore, the average number of codons per amino acid is 64/20 = 3.2.

This indicates that there is a degeneracy or redundancy in the genetic code, where multiple codons can specify the same amino acid.

For example, the amino acid leucine is encoded by six different codons (UUA, UUG, CUU, CUC, CUA, CUG), while methionine and tryptophan are each encoded by a single codon.

In conclusion, the existence of more possible combinations for amino acids than amino acids themselves means that the genetic code is degenerate, allowing for redundancy and flexibility in protein synthesis.

This redundancy helps to protect against errors in DNA replication and transcription and allows for evolution to occur through the accumulation of genetic variations.

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AgClO₄ is expected to have the lowest solubility of AgBr. Option d is correct.

AgBr is sparingly soluble in water, and the solubility of AgBr decreases in the presence of common ions such as Cl⁻, NO₃⁻, and Ag⁺. Among the given options, AgClO₄ has the highest concentration of common ion Ag⁺ due to which the solubility of AgBr will be suppressed.

Thus, option d, 0.10 M AgClO₄, is expected to have the lowest solubility of AgBr. The other options have either no common ion with AgBr or have a lower concentration of the common ion than AgClO₄, and hence, their effect on the solubility of AgBr is expected to be less significant. Hence Option d is correct.

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There are 26 needed electrons are in the chlorate ion ClO₃⁻.

The chlorate ion contains one chlorine atom along with three oxygen atoms. In addition, the ClO₃⁻ ion has a  -1 charge.

The periodic table has groups for oxygen and chlorine at positions 7 and 6, respectively. The valence shell of chlorine has seven electrons. Six electrons contain the valence shell of the oxygen atom.

With a charge of -1, the chlorate ion contains one extra electron than a neutral ClO₃ molecule. A total of 26 valence electrons make up the ClO₃⁻ ion.

The ability of having greater valance is important. Chlorine can show valence 7. But, oxygen's maximum valence is 2. Therefore chlorine has more chance to be the center atom

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The payback period of the combine is 8.4 years. Therefore, it will take 8.4 years for the savings from the new combine reactant  to equal the initial cost of $210,000.

To calculate the payback period, we need to determine how long it will take for the savings from the new combine to equal the initial cost. In this case, the initial cost is $210,000 and the annual savings from reduced labor costs is $25,000.

The payback period is the time it takes for an investment to generate an amount equal to the initial cost of the investment. In this case, Combine A costs $210,000, and it will reduce labor costs by $25,000 per year.
To calculate the payback period, you can use the following formula: Payback Period = Initial Investment / Annual Savings.

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Answer:

Irrigation is the artificial process of applying controlled amounts of water to land to assist in production of crops. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall.

Answer: The watering of crop plants in regular intervals is known as irrigation. ... Weeds are unwanted plants thet grows with the crop plants. Weeding means to remove those plants. It is done manually or by machine. Using khurpi it is done manually and using seed drill it is done by machine.

Explanation:

Irrigation is the artificial application of water to the soil through various systems of tubes, pumps, and sprays. Irrigation is usually used in areas where rainfall is irregular or dry times or drought is expected.

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The pH decreases and the ocean becomes more acidic as more co2 is absorbed into oceans.

Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1, which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.

What happens when co2 is absorbed in seawater?

Ocean acidification occurs when carbon dioxide (CO2) is absorbed rapidly into the ocean. It reacts with water molecules (H2O) to form carbonic acid (H2CO3). This compound then breaks down into a hydrogen ion (H+) and bicarbonate (HCO3-). These hydrogen ions decrease seawater pH.

What happens if there is more carbon in the ocean?

Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger.

What is ocean acidification?

As Carbon dioxide in the atmosphere increases, it sinks into the ocean and dissolves in water creating carbonic acid which is bad for marine organisms. the PH decreased in the ocean and the ocean water becomes more acidic.

Thus, oceans become more acidic.

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Trans-cinnamic acid has one chirality center, which is the carbon atom that is directly attached to the carboxylic acid group (-COOH). This carbon atom is sp² hybridized and has three different groups attached to it: a hydrogen atom, a double bond with an adjacent carbon, and a carboxylic acid group.

Due to this, two stereoisomers are possible for trans-cinnamic acid: (E)-cinnamic acid and (Z)-cinnamic acid. The (E)-isomer has the two highest priority groups (i.e., the double bond and the carboxylic acid group) on opposite sides of the double bond, whereas the (Z)-isomer has them on the same side of the double bond.

Both isomers have the same chirality center, but they differ in their geometric arrangement around the double bond. Therefore, cinnamic acid exists in two stereoisomeric forms, (E)-cinnamic acid and (Z)-cinnamic acid.

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Answer:

2 - Bromo - 2 - Methyl Propane

Explanation:

The structure of the compound is given in the attached image as;

The longest chain is; CH₃--C--CH₃ = 3 carbon atoms = Propane

It has two substituents on the middle carbon = CH₃  and  Br = 2 - Bromo- and 2 - Methyl

The IUPAC name is given as; 2 - Bromo - 2 - Methyl Propane

Answer:

43 g N₂

Explanation:

To find the mass of N₂ required, you need to (1) convert grams H₂ to moles H₂ (via molar mass), then (2) convert moles H₂ to moles N₂ (via mole-to-mole ratio from equation coefficients), and then (3) convert moles N₂ to grams N₂ (via molar mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 2 sig figs to match the amount of sig figs of the given value.

Molar Mass (H₂): 2(1.008 g/mol)

Molar Mass (H₂): 2.016 g/mol

Molar Mass (N₂): 2(14.009 g/mol)

Molar Mass (N₂): 28.018 g/mol

1 N₂(g) + 3 H₂(g) -----> 2 NH₃(g)

9.3 g H₂           1 mole             1 mole N₂             28.018 g
--------------  x  ----------------  x  --------------------  x  ------------------  =  43 g N₂
                        2.016 g            3 moles H₂            1 mole

Explanation:

Relative molecular mass of CH4 = 12 * 1 + 4 = 16

Relative molecular mass of SO2 = 32 + 10 *2 = 64

tSO2/tCH4 = √MSO2/MCH4

t/20 = √64/16 = √4

t/20 = 2

∴ t = 20 * 2 = 40sec

Answer:

ok here is you answer

Explanation:

Blood is a liquid because it is composed of cells and plasma that are suspended in a liquid state and can easily flow through the circulatory system, delivering oxygen and nutrients to cells and removing waste products.

Answer:

Silver has 47 protons as well as 47 electrons.

Germanium has 32 protons as well as 32 electrons.

Explanation:

To draw the Lewis structure for chlorite ion (Clo₂⁻), we need to follow the octet rule. The central chlorine atom is surrounded by two oxygen atoms and a lone pair of electrons.

The two oxygen atoms share two electrons each with chlorine, and there is one double bond between them.

The remaining electrons form a single bond between one oxygen atom and the chlorine atom, and the other oxygen atom has a lone pair of electrons.

By doing so, the formal charges on each atom are minimized, and we get a stable structure.

There are a total of three equivalent likely resonance structures for Clo₂⁻. In the resonance structures, we can move the double bond between the central chlorine atom and one oxygen atom to the other oxygen atom.

Thus, we can see that the chlorite ion exhibits resonance, and all the resonance structures have equal weightage. Overall, the chlorite ion has a bent molecular geometry with a bond angle of approximately 109.5° due to the presence of a lone pair of electrons.
Hi! The chlorite ion (ClO₂⁻) has a Lewis structure with minimized formal charges. To draw the Lewis structure, first, count the total number of valence electrons: Cl has 7, each O has 6, and there is an extra electron due to the negative charge, totaling 20 valence electrons.

Arrange the atoms with Cl in the center, bonded to the two O atoms.

For the chlorite ion (ClO₂⁻) Lewis structure:
1. Place a single bond between Cl and each O atom, using 4 electrons.
2. Complete the octets for the O atoms by adding lone pairs (6 more electrons for each O).
3. The Cl atom will have an additional 2 lone pairs (4 electrons).

Now, you have the Lewis structure with minimized formal charges: Cl has a +1 charge, one O atom has a -1 charge, and the other O has a 0 charge. There are two total equivalent likely resonance structures for ClO₂⁻, as you can switch the locations of the double bond and the single bond between the Cl and O atoms.

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Answer:

it's volume also decrease

The ratio of the osmotic pressures of 0.20 M Na3PO4 and 0.20 M MgSO4 is 1.31.

The pressure required to prevent the flow of pure solvent into a solution through a semipermeable membrane is referred to as osmotic pressure. The osmotic pressure of a solution is directly proportional to the concentration of solutes in it.

The formula to find the osmotic pressure is

π = iMRT Whereπ = Osmotic Pressure M = Molarity of the solution R = Universal Gas ConstantT = Absolute Temperature = can't Hoff factor

If we talk about Na3PO4, I value = 4 (as it dissociates into 4 ions) and if we talk about MgSO4, I value = 3 (as it dissociates into 3 ions)

Now, the Osmotic pressure of Na3PO4 = iMRT = 4 x 0.20 x R x T

The osmotic pressure of MgSO4 = iMRT = 3 x 0.20 x R x T

Therefore, the ratio of osmotic pressures of Na3PO4 and MgSO4 would be

πNa3PO4/πMgSO4 = (4 x 0.20 x R x T) / (3 x 0.20 x R x T)= (4/3) = 1.31

Therefore, the ratio of the osmotic pressures of 0.20 M Na3PO4 and 0.20 M MgSO4 is 1.31.

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Answer:

Bohr thought that electrons orbited the nucleus in circular paths; whereas in the modern view atomic electron structure is more like 3D standing waves. ... He believed that electrons moved around the nucleus in circular orbits with quantised potential and kinetic energies.

Answer:

The answer is A electrons exist in specified energy levels surrounding the nucleus. for people in edguinity

Explanation:

The molarity of the HCl 0.104 M

Molarity of a solute is defined as the ratio of number of moles of solute to the volume of solution (L). Solute molarity is sometimes omitted by enclosing the solute chemical formula in square brackets. For example, the concentration of chloride ions in solution can be written as  [Cl⁻]. Molarity allows you to convert between the volume of a solution and the moles (or mass) of a solute.

For the given case,

HCl + NaOH --> NaCl + H2O

Since,

M₁V₁ = M₂V₂

M₁ = concentration of NaOH

V₁ = volume of NaOH

M₂ = concentration of HCl

V₂ = volume of HCl

Substitute the given values in the equation mentioned above:

26.18 × 0.0995 = M₂ × 25.00

2.60491 = 25 M₂

M₂ =  0.104 M

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Answer:

1. made of substances not chemically combined

2. oxygen

3. carbon dioxide

4. air

5. pure substances cant be separated by physical means

Asnwer: average atomic mass of chromium is 52amu

Calculations:

49.946amu: 4.350%= 0.0435

51.941amu: 83.790%= 0.8379

52.941amu: 9.500%= 0.095

53.939amu: 2.360%= 0.0236

Average atomic mass of chromium = 0.0435(49.946) + 0.8379(51.941) + 0.095(52.941) + 0.0236(53.939)

= 51.9963703amu

= 52 amu

The relationship between volume is inversely proportional. This means that when there are an increase in pressure of molecules that are moving, pushes the molecules closer together, reducing the volume. If the pressure is decreased, the gases are free to move about in a larger volume.

You can see in the graph that the behaviour is: the volume is increasing, so this causes that the pressure increase. The answer would be the third one: pressure increases

Answer:

The answer is a gamma particle.

Answer:

beta particle

Explanation:

Answer:

Liquids take the shape of their container, they are one of the three stages in between a solid and a gas. A liquids particles are not in a fixed position like a solids, nor do they move as freely as a gas.

When 2462 J is used to raise a sample of water from 13.7 °C to 31.3 °C, it is equivalent to 588.4321 cal.

Multiplying the energy by the conversion factor will get the calorie equivalent of a joule measurement. Joules multiplied by a factor of 0.239006 yields the energy in calories.

Since 1925, the definition of a calorie in terms of joules has been in place. Since 1948, one calorie has been equated to roughly 4.2 joules. For one second, one joule is equal to one watt of power that has been emitted or dissipated.

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When 2462 J is used to raise a sample of water from 13.7 °C to 31.3 °C, it is equivalent to 588.4321 cal.

Multiplying the energy by the conversion factor will get the calorie equivalent of a joule measurement. Joules multiplied by a factor of 0.239006 yields the energy in calories.

Since 1925, the definition of a calorie in terms of joules has been in place. Since 1948, one calorie has been equated to roughly 4.2 joules. For one second, one joule is equal to one watt of power that has been emitted or dissipated.

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Answer:

2.03 atm

Explanation:

Number of moles of He = 1g/4g/mol = 0.25 moles

Number of moles of F2 = 14.0g/38 g/mol = 0.37 moles

Number of moles of Ar=19.0g/40g/mol = 0.48 moles

Total number of moles = 0.25 + 0.37 + 0.48 = 1.1 moles

From;

PV=nRT

P= pressure of the gas mixture

V= volume of the gas mixture

n= total number of moles of the gas mixture

R= gas constant

T= temperature of the gas mixture

P= nRT/V

P= 1.1 × 0.082 × 293/13

P= 2.03 atm

Answer:

2,52M

Explanation:

I took the class and added it up

This peptide is positively charged at physiological pH. In conclusion, SDEKAINVKWQLA and SDEKAINVKWQHA are neutral at physiological pH, SEERAINVAWQHA is negatively charged, and SDEK is positively charged.A peptide is a short chain of amino acids that are joined together with peptide bonds.

The nature of a peptide's charge depends on the overall charges of the amino acids in the sequence. At physiological pH, amino acids will either be positively charged, negatively charged, or neutral, depending on their side chains. Let's examine the peptides provided to determine their charges at physiological pH:SDEKAINVKWQLA: This peptide contains a mix of amino acids with positively charged, negatively charged, and neutral side chains. However, the positively charged amino acid (lysine) and the negatively charged amino acid (aspartic acid) are present in equal amounts.

Therefore, this peptide is considered neutral at physiological pH.SDEKAINVKWQHA: This peptide is similar to the first one but has one less amino acid (alanine instead of leucine at the end). It contains the same number of positively charged and negatively charged amino acids, and so it is also neutral at physiological pH.SEERAINVAWQHA: This peptide contains three negatively charged amino acids (aspartic acid and glutamic acid) and only one positively charged amino acid (lysine). Therefore, the peptide overall is negatively charged at physiological pH.SDEK: This peptide contains both positively charged (lysine) and negatively charged (aspartic acid) amino acids. However, there are more positively charged amino acids in the peptide than negatively charged ones.

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If The Excellence Cοrpοratiοn fοr Servicing Excellence sells the οffice furniture fοr $6,000, they wοuld recοgnize a lοss οf $1,000 οn the sale.

The recοgnitiοn οf the sale οf the οffice furniture by The Excellence Cοrpοratiοn fοr Servicing Excellence wοuld invοlve the fοllοwing:

The calculatiοn οf the gain οr lοss οn the sale:

Prοceeds frοm the sale: $6,000

Cοst οf the furniture: $10,000

Accumulated amοrtizatiοn: $5,000

Calculatiοn:

Gain/Lοss οn sale = Prοceeds frοm sale - (Cοst οf furniture - Accumulated amοrtizatiοn)

Gain/Lοss οn sale = $6,000 - ($10,000 - $5,000)

Gain/Lοss οn sale = $6,000 - $5,000

Gain/Lοss οn sale = $1,000

Determining the nature οf the gain οr lοss:

Since the prοceeds frοm the sale ($6,000) are less than the carrying value οf the asset ($10,000 - $5,000 = $5,000), a lοss will be recοgnized οn the sale.

Therefοre, if The Excellence Cοrpοratiοn fοr Servicing Excellence sells the οffice furniture fοr $6,000, they wοuld recοgnize a lοss οf $1,000 οn the sale.

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