Which would be considered a substance? Element, Compound, Mixture.

Answer:

M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.

Explanation:

M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.

The tradable permit market for sulfur oxide emissions in the US was likely more socially efficient than a regulation requiring the same percentage reduction in emissions every year.

The tradable permit market allows for flexibility in reducing sulfur oxide emissions by assigning a limited number of permits to coal-fired electricity producers. The market system takes into account the varying marginal damage caused by different plants and allows those with lower abatement costs to reduce emissions further and sell their unused permits to those with higher abatement costs. This flexibility ensures that emissions are reduced at a lower overall cost.

In contrast, a regulation requiring the same percentage reduction in emissions every year at every coal-fired electricity plant does not account for differences in marginal damage. It may result in higher costs for some plants that may struggle to meet the required reduction targets, potentially leading to inefficiency and economic burden. Additionally, the administrative and enforcement costs associated with imposing and monitoring such a regulation at every plant would likely be high.

By implementing a tradable permit market, the market mechanism incentivizes emissions reductions where the marginal cost of abatement is lower, resulting in a more efficient allocation of resources. The market allows for cost-effective solutions while still achieving the desired reduction in sulfur oxide emissions, making it a more socially efficient approach compared to a uniform regulation.

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Answer:

2pounds

Explanation:

Given parameters:

Weight of Pedro's book  = \(\frac{19}{4}\) pounds

Weight of Blanca's book  = \(\frac{17}{7}\) pounds

Unknown:

How much more does Pedro's book weigh more than Bianca's book ?

Solution:

To Solve this problem, let us convert the fractions to decimal;

   Weight of Pedro's book  = 4.75 pounds

   Weight of Bianca's book  = 2.43 pounds

Differences  = 4.75pounds - 2.43 pounds

                     = 2.32 pounds

Estimating gives 2pounds

Answer:

The National Institute of Standards and Technology defines STP differently as absolute pressure of 1 atm (101.325 kPa, 14.696 psi) and 20 degrees Celsius (293.15 degrees Kelvin, 68 degrees Fahrenheit).

Answer:

I don't see a question.

Explanation:

I do see a reaction in which tells us that the C2H4 has a double-bonded C.  The additrtion of H2 breaks this bond and provides the two bonding sites needed for the 2 new hydrogen atoms.

H2C=CH2 + H2 → H3C-CH3

Answer:

it doesn't make sense bro. how are they gonna form before atoms if they are made out of atoms? everything is

Explanation:

Under the influence of gravity, atoms came together and resulted in a blast causing the "big bang". So the statement is false as stars and planets are formed due to the colliding of atoms.

About 13.7 billion years ago, the universe underwent a dramatic expansion that caused space to expand like a huge balloon.

That sums up the Big Bang idea, which is accepted by almost all cosmologists and theoretical physicists. The theory is backed up by a lot of strong data. For instance, we are aware that the universe is still expanding right now, and that this expansion is speeding up.

According to the conventional Big Bang theory, the beginning of the universe involved a singularity, a region of infinite temperature and density whose nature is difficult for humans to comprehend. However, scholars assert that this may not truly reflect reality because the singularity idea is based on Einstein's theory of general relativity.

The origin of the cosmos is still mostly unknown. A trillionth of a second after the Big Bang, according to scientists, is where the tale may be picked up.

Therefore, the statement is false.

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Answer:

I think its Female

Explanation:

Correct me if I was wrong :)

Answer: The answer to this question about the given multiple choices about filling the blank with a missing word in order for you to complete the given statement is "Chest broadens, hips broaden and becomes the rounders. These characters are in the females."

Explanation: I chose B) "Females" for the correct answer in order to fill in the blank with a missing word for you to complete the given statement, so here's the completed statement again, "Chest broadens, hips broaden and becomes the rounders. These characters are in the females.".

I hope my answer with the given multiple choice answer and the given explanation is very helpful to your own chemistry question about the given multiple choices about filling the blank with a missing word in order for you to complete the given statement, please mark me as Brainliest and have a great day! :D

Sincerely,

Jason Ta,

The ambitious of Brainly and the role of The TDSB and WHCI Student of the high school.

Answer:

2. Solute

3. Suspension

4. Colloid

5. Compound

Explanation:

Answer:

A) mL / s

Explanation:

Polypeptides over 100 amino acids long are generally classified as proteins.  A polypeptide is a polymer of amino acids, and it is formed by peptide bonds between the amino group of one amino acid and the carboxyl group of another amino acid.

The sequence of amino acids in a polypeptide determines the final protein's shape, size, and function. The shape of the protein is critical to its function, as it determines how it interacts with other molecules in the cell.

Some examples of protein categories include enzymes, structural proteins, transport proteins, and regulatory proteins. In conclusion, polypeptides over 100 amino acids long are classified as proteins, which are macromolecules made up of one or more polypeptides.

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Answer: the answer is B!

Explanation:

S and p’s are valence electrons and if added, there is 7 in total !

Answer:

A or D should be the answer

Yes for instance.

once given the physical properties of the alkali metal you can be able to indicate the group and where you can find them in the periodic table. properties like it being soft and having relatively low melting point (Li, Na, K, RB, CS, Fr)

or once been said that it reacts with group 7 Elements that means we are quick to know it out of those elements.

now to answer your question specifically, if the information given upon says an element burns in air with a yellow flame. Then we are quick to say it's Sodium.

so yeah.

A. 2

B. 3

C. 4

D. 5A. 2

B. 3

C. 4

D. 5A. 2

B. 3

C. 4

D. 5

Answer:

80.00 mL

Explanation:

Let's consider the following addition.

22.33 mL  +  55.666 mL +  0.001 mL

22.33 mL has 4 significant figures.

55.666 mL has 5 significant figures.

0.001 mL  has 1 significant figure.

For addition and subtraction, we look at the places to the decimal point.  Add or subtract in the normal fashion, then round the answer to the least number of places to the decimal point of any number in the problem.

22.33 mL  +  55.666 mL +  0.001 mL

77.997 mL ≈ 80.00 mL

Answer:

Recessive

Explanation:

Hope this help I think this is the right answer.

The amount of heat energy needed to cause this rise in temperature=13.794 kJ

Weight m = 100 g

T = 37 - 4 = 33 C is the temperature difference.

Specific heat is 4.18 J per g of carbon.

We must discover heat energy. The following is what we know:

Q = m c  Δ T

Putting values here we get :

Q = ( 100 × 4.18 × 33 ) J

= > Q = ( 418 × 33 ) J

= > Q = 13794 J

= > Q = 13.794 kJ

Specific heat capacity (symbol: c) in SI units is the quantity of heat in joules needed to elevate 1 gram of a substance by 1 Kelvin. J/kgK is another way to put it. Specific heat capacity can also be expressed in terms of calories per gram of temperature change.

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The major disadvantage is - Ozone decomposes quickly and does not provide long-term protection against possible contamination as the water is piped through a municipal distribution system.

The gas ozone (O3) is unstable. As a result, it breaks down quickly, oxidizing any organic impurities present in the water including bacteria, viruses, and germs, but because it is a gas, it leaves the water after the oxidation is complete. Therefore, when the ozone started to disintegrate at first, the water may have various additional contaminants that mix with it as it travels through the municipal distribution system. Water carries through the new pollutants from the pipes. Ozone therefore has no long-term effect.

Chlorination produces trihalomethane, not ozonation, hence the expansiveness of ozone is dependent on the impurity of the water. Trihalomethane is produced by chlorination, not ozonation. Although ozone as a gas has a faint odor, when it is combined with water, it oxidizes the pollutant and breaks down, leaving no ozone in the water. Therefore, water does not smell like ozone.

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The answer of the mathematical operation to the correct number of significant figures is 1.71x10⁻⁴

The answer of the mathematical operation to the correct number of significant figures is 7.2

The no of significant figures in the answer depends on the no of significant figures in the problem given.

It is given 1.05x10⁻³/6.135 , so the number of significant figures in 1.05x10⁻³ is 3 and in 6.135 is 4. So the answer of this operation will be rounded off to have 3 significant figures only. Since the calculated amount comes out as 0.17114x10⁻³. But it has to be rounded to 4 significant figures. So the answer will be 1.71x10⁻⁴

It is given 21-13.8 , so the number of significant figures in the operation are 2 and 3 respectively. So the calculated amount comes to be 7.2 and it already has 2 significant figures.

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Explanation: i stuck at this Answer:Sometimes atoms share more than one pair of electrons, for example a double covalent bond can occur, as in the carbon dioxide molecule where carbon shares 2 pairs of electrons with each oxygen atom: O=C=O. (where = represents a double bond). Another kind of covalent bonding is called co-ordinate or dative covalent.

A polar covalent bond exists between the atoms in a CO2 molecule. A carbon atom is joined by four covalent bonds to two oxygen atoms, each of which has two covalent bonds.

A chemical bond is a long-lasting attraction between atoms, ions, or molecules that allows chemical compounds to form.

Ionic bonds are formed by the electrostatic force between oppositely charged ions, whereas covalent bonds are formed by the sharing of electrons.

One carbon atom and two oxygens combine to form the carbon dioxide molecule.

Carbon has only four outer shell electrons, whereas oxygen has six. Double covalent bonds form between the atoms, with two electrons from each atom shared, for a total of four bonding electrons.

A CO2 molecule contains polar covalent bonds between its atoms. Four covalent bonds connect a carbon atom to two oxygen atoms, each of which has two covalent bonds.

Thus, this way bond gets formed between carbon and oxygen atoms.

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Answer:

False

Explanation:

From what I know about water and gas, this is false

Answer:

There isn't any picture for me to see

have a good day :)

Explanation:

According to the question the new volume of the balloon is 2731.66 L.

Volume is the measure o the amount of space a object or material occupies. It is usually measured in liters, cubic meters, gallons, or cubic feet. Volume is an important concept in many fields, including physics, engineering, chemistry, and mathematics. In physics, volume is a measure of the amount of space a body occupies. In engineering, volume is used to determine the size of a tank or reservoir, the capacity of a pipe, or the amount of material needed for a construction project. In mathematics, volume is used to calculate the area of a three-dimensional shape, such as a cube, sphere, or cylinder.

The volume of a gas can be calculated using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant (8.314 J/mol•K), and T is the absolute temperature.

Since the pressure remains constant, we can rearrange the equation to solve for V: V = nRT/P.

To solve for the new volume, we can plug in the known values:

V = (1 mol)(8.314 J/mol•K)(330.0 K)/(1 atm)

V = 2731.66 J/atm

V = 2731.66 L

Therefore, the new volume of the balloon is 2731.66 L.

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The volume of the gas changed by approximately 0.280 m³ during the process.

To find the change in volume of the gas during the process, we can use the equation:

ΔQ = nCvΔT

where: ΔQ is the heat absorbed (3870 J),

n is the number of moles of the gas (7.70 mol),

Cv is the molar heat capacity at constant volume,

ΔT is the change in temperature (24.2 °C = 24.2 K).

Since the change in internal energy is zero (ΔU = 0), we know that ΔU = ΔQ + ΔW, where ΔW is the work done by the gas. In this case, since the process is at constant pressure, we can write ΔW = PΔV, where P is the pressure (1.62E+5 Pa) and ΔV is the change in volume.

Now, using the ideal gas law, we can express ΔV in terms of ΔT:

ΔV = (nRΔT) / P

where R is the ideal gas constant (8.314 J/(mol·K)).

Substituting the given values into the equations:

ΔQ = nCvΔT

3870 J = 7.70 mol × Cv × 24.2 K

From the equation ΔV = (nRΔT) / P, we have:

ΔV = (7.70 mol × 8.314 J/(mol·K) × 24.2 K) / (1.62E+5 Pa)

Simplifying the equations and performing the calculations:

ΔQ = nCvΔT

3870 J = 7.70 mol × Cv × 24.2 K

Cv ≈ 2.00 J/(mol·K) (calculated from the above equation)

ΔV = (7.70 mol × 8.314 J/(mol·K) × 24.2 K) / (1.62E+5 Pa)

ΔV ≈ 0.280 m³

Therefore, the volume of the gas changed by approximately 0.280 m³ during this process.

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All the statements given above are correct.

Atoms within resonance structures are the same. The species' structure is not accurately reflected by a single resonance structure.

A representation of a molecule or an ion called a resonance structure depicts several electron combinations that are not conceivable in a single, static structure.

Resonance hybrid refers to the actual structure of the molecule or ion, which is an average of the potential resonance structures.

Resonance structures are not different in terms of atoms, but rather in the arrangement of electrons.

Resonance structures vary, and no single resonance structure can fully capture the structure of an entire species.

The species that make up resonance structures have isomers.

The species could have any of these structures at any time since resonance forms quickly interconvert.

It is not real to have individual resonance shapes.

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