Which data are shown on topographic maps?
A.)population sizes of major cities
B.)information about elevation and slope
C.)relief of each area laid out in tiled squares
D.)variations in climate between geographic areas

The time it takes for the concentration of A to decrease from 0.950 M to 0.280 M is 24.81 seconds.

The rate of a zero-order reaction is independent of the concentration of the reactant, so the concentration of A will decrease at a constant rate of 0.0270 M/s until it reaches 0.280 M. Using the zero-order integrated rate law, we can solve for time:

[A]t = [A]0 - kt

0.280 M = 0.950 M - (0.0270 M/s)(t)

t = (0.950 M - 0.280 M) / (0.0270 M/s)

t = 24.81 s

Therefore, it would take 24.81 seconds for the concentration of A to decrease from 0.950 M to 0.280 M in a zero-order reaction with a rate constant of 0.0270 M/s at 300 °C.

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Answer:

cl2 - 1 bond

HCl.- 1 bond

N2 - 3 bond

o2 - 2 bond

Answer: smart guess i have is c

Explanation:

guessing sorry

Answer:

FeSO4 is the formula for iron(II) sulfate.

Knowing how many moles there are in a sample of glucose (C6H12O6), which includes 2.37 mol of glucose, will help us determine the sample's mass.

Equation:

The formula that links the mass and the number of moles is

Mass/Molar mass = Number of Mole Units

By adding the molar masses of the six carbon atoms, the twelve hydrogen atoms, and the six oxygen atoms, one can determine the molar mass of glucose.

We may rewrite equation (1) to determine the mass of glucose now that we know its moles and molar mass.

The mass of glucose is equal to the following:

Molar mass of C6H12O6 * moles of glucose

= 2.37mol * 180.156g/mol

= 426.9 g

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Answer:

The carbon anode

Explanation:

The carbon anode is continually replaced because it burns off as carbon IV oxide gas by reacting with the oxygen had produced at the anode.

A proportional relationship means that the ratio of ingredients remains the same. Therefore, the sets of ingredients that are in a proportional relationship with the recipe are:

6 Tbsp oil, 1.5 Tbsp vinegar, 1 Tbsp honey (the ratio of oil:vinegar:honey is 2:0.5:0.33)

15 Tbsp oil, 4 Tbsp vinegar, 3 Tbsp honey (the ratio of oil:vinegar:honey is 12:3:2)

24 Tbsp oil, 6 Tbsp vinegar, 4 Tbsp honey (the ratio of oil:vinegar:honey is 12:3:2)

The other options are not in a proportional relationship with the recipe, as the ratio of ingredients does not remain the same.

Answer:

The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms of that element that are of a given isotopе). An element does not have an absolute atomic mass.

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Answer:

The substance is a mixture because it left a white powder in the beaker when boiled.

Explanation:

On the basis of the evidence collected, it can be concluded that unknown liquid substance is a compound as it left behind a residue in the beaker on decomposition.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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\(2C_4H_10+13O+2\) → \(8CO_2+10H_2O\) is the balanced chemical equation.

Hence, she should change the coefficient to 2, 13, 8, 10.

A balanced equation contains the same number of each type of atom on both the left and right sides of the reaction arrow.

\(2C_4H_10+13O+2\) → \(8CO_2+10H_2O\) is the balanced chemical equation.

Hence, she should change the coefficient to 2, 13, 8, 10.

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Answer:

Its d

Explanation:

i did the quiz

Answer:

Jacques-Louis David; Oath of the Horatii.

Explanation:

The answer is 87%.

Solution:

Number of moles of MgCl2 = Volume* Molarity

nMgCl2 = 0.114*0.192= 0.021888 moles

Similarly, nNaOH = 0.02564*0.613= 0.015 moles

Now, according to the reaction, 1 mole of MgCl2 will react with 2 moles of NaOH to produce 1 mole of Mg(OH)2 and 2 moles of NaCl

Thus 0.021888  moles of MgCl2 will react with 0.021888*2 = 0.043776 moles of NaOH which is less than 0.015.

Hence NaOH will be the limiting reagent and will get totally consumed.

Now, according to the equation, 2 moles of NaOH corresponds to 1 mole of Mg(OH)2.

Thus the number of moles of Mg(OH)2 actually produced in the reaction is 0.015/2 = 0.007 moles

Mass of Mg(OH)2 that should have been produced produced = 0.007*58 = 0.406 gm

But actual mass-produced = 0.357 gm

Yield percent = (0.357*100)/0.406 = 87%

Aqueous solutions of magnesium chloride and sodium hydroxide react to form solid magnesium hydroxide and aqueous sodium chloride. This is a neutralization reaction, also called a double displacement reaction. This is a neutralization because you added the base magnesium hydroxide to the acid HCl. The products are salt and water.

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The molar heat of the vaporization of the ammonia is 23.3 kJ / mol.  the molar heat of condensation of the ammonia is - 23.3 kJ / mol.

The molar heat of condensation is just opposite to the molar heat of vaporization. the molar heat of vaporization of ammonia is given ad :

ΔH vaporization = - ΔH condensation

so, the heat of condensation for the ammonia i given as:

ΔH condensation = - 23.3 kJ / mol.

Thus. The molar heat of the vaporization of the ammonia is 23.3 kJ / mol.  the molar heat of condensation of the ammonia is - 23.3 kJ / mol.

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According to the stoichiometry of the given chemical equation, the mass of solid product formed that is CuO  is 28.97 g.

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

123.55 g copper carbonate gives 79.54 g copper oxide thus, 45 g copper carbonate will give 45×79.54/123.55=28.97 g.

Thus,  the mass of solid product formed that is CuO  is 28.97 g.

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Answer:

seven

Explanation:

There are major, minor and micro tectonic plates. There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American. The Hawaiian Islands were created by the Pacific Plate, which is the world's largest plate at 39,768,522 square miles.

The food chain is the sequence of organisms in an ecosystem where each organism depends on the next as a source of food. For example, a simple food chain in a forest ecosystem could be grass being eaten by a rabbit, which is then eaten by a fox, which may be eaten by a mountain lion.

The trophic level that receives the most energy captured by plants is the primary consumer level (herbivores).

By eating higher up the trophic level, humans are contributing to the reduction of available energy in the ecosystem, as energy is lost at each level due to respiration, heat loss, and waste production. This means that fewer organisms can be supported in higher trophic levels, leading to a reduction in biodiversity.

Most of the energy that enters the trophic level is lost as heat or used by organisms in respiration, growth, and reproduction. Only a small fraction of energy is converted into biomass and passed on to the next trophic level.

Only about 10% of the energy from one trophic level gets passed to another. This is because energy is lost at each trophic level due to heat loss, respiration, and waste production. As a result, there is a limit to the number of trophic levels that can be supported in an ecosystem, as each level receives less and less energy.

Answer:

a food chain is a complex chain or a series of different organisms, depending on the particular food chain, that function in a hierarchy, depending on food source.

The trophic level that most energy captured by plants is the first level of the particular food chain. These are the producers.

By eating her up in the trophic level humans are contributing to loss in certain parts of the food chain, such as decreasing sources of food for organisms who are solely dependent on other organisms.

most of the energy that enters the trophic level is exerted and is mostly not used in terms of food and energy percentage.

10% of energy that is consumed from a food source from an another organism is stored per each trophic level to the next.

Explanation:

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The concentration of AB at 21 s is 0.526 M.

The data below show the concentration of AB versus time for the following reaction:

AB(g)→A(g)+B(g)Time (s)  [AB] (M)0  0.95050  0.459100  0.302150  0.225200  0.180250  0.149300  0.128350  0.112400  0.0994450  0.0894500  0.0812

Determine the value of the rate constant:

The reaction is a first-order reaction. The concentration of AB changes as follows:

[AB]t = [AB]0e^-ktln

([AB]t/[AB]0) = -ktln

(0.459/0.950) = -k(

0.693)k = 1.88 × 10^-3 s^-1

The rate constant value is 1.88 × 10^-3 s^-1.

Predict the concentration of AB at 21 s.

The formula for a first-order reaction is given by ln

([A]t/[A]0) = -ktln([AB]t

[AB]0) = -kt[AB]t = [AB]0 e^-kt

[AB]t = (0.950) e^-(1.88 × 10^-3)(21)[AB]t = 0.526 M.

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The volume of the extracellular fluid compartment is 160 mL and the volume of the total body water compartment is 48,000 mL.

The volumes of the extracellular fluid compartment and the total body water compartment can be determined from the given data. To determine the volume of the extracellular fluid compartment, we can use the following formula:
Volume of extracellular fluid = (amount of inulin injected) / (plasma inulin concentration)
Plugging in the given values:
Volume of extracellular fluid = (80 mg) / (0.5 mg%)
Volume of extracellular fluid = 160 mL
To determine the volume of the total body water compartment, we can use the following formula:
Volume of total body water = (amount of 3H2O injected) / (plasma 3H2O concentration)
Plugging in the given values:
Volume of total body water = (960,000 cpm) / (20 cpm/mL)
Volume of total body water = 48,000 mL

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Answer:

natural income

Explanation:

Living sustainably in the 21st century means coexisting with the nature. In other words, to live sustainably means to meet the needs of the human without affecting or degrading the mother nature.

In the context, living sustainably means to live from the natural income from the nature's gift to us, using their natural resources and not hurting them or exploiting them. They may be resources from the soil, plants, clean air, animals, nature's clean water,etc.

The survival of a species as a whole or of a single organism can be impacted by changes in the environment.

Humans use a variety of living things, including plants, animals, fungi, and microorganisms, for both practical purposes like the production of food and clothing as well as symbolic ones like in mythology, art, and religion. Through social learning, human culture transmits the necessary abilities and practices.

Beneficial creatures consist of but aren't confined to: Birds, Bears, Microbes, Insect, Arachnids, and fungus. In large part because they eat plant seeds and disperse them through feces, bears and birds are regarded as beneficial.

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water into vapor is the answer

Answer:

liquid water turning into vapor

Explanation:

because physical changes alter only the size

Answer:

boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapour of the liquid; under this condition, addition of heat results in the transformation of the liquid into its vapour without raising the temperature.

Explanation:

Radhe Radhe❤

Explanation:

The point at which a matter melts is called boiling or melting point.

To find the mole fraction of He in the gas, we first need to calculate the total number of moles of gas in the sample. Since 6.02x10^23 atoms make up one mole of gas, we can calculate the number of moles in the sample by dividing the number of atoms by Avogadro's number:

6.02x10^23 atoms / 1 mole = 2.0 moles of gas

Next, we need to calculate the mole fraction of He in the gas. This is the ratio of the number of moles of He to the total number of moles of gas in the sample:

Mole fraction of He = moles of He / total moles of gas
Mole fraction of He = 6.02x10^19 / 2.0
Mole fraction of He = 3.01x10^19

Finally, to express the mole fraction in parts per million (ppm), we need to multiply by 10^6:

Mole fraction of He (in ppm) = 3.01x10^19 x 10^6
Mole fraction of He (in ppm) = 3.01x10^25 ppm

Therefore, the mole fraction of He in the gas sample is 3.01x10^25 ppm.
Hi! I'd be happy to help you with your question. To find the helium (He) mole fraction in parts per million (ppm), follow these steps:

1. Calculate the total number of moles of gas: We are given that there are 2.0 moles of gas in total.
2. Calculate the moles of He atoms: We are given 6.02 x 10^19 He atoms. To convert atoms to moles, divide by Avogadro's number (6.022 x 10^23 atoms/mol):
  (6.02 x 10^19 atoms) / (6.022 x 10^23 atoms/mol) ≈ 0.0001 mol He.
3. Calculate the mole fraction of He: Divide the moles of He by the total moles of gas:
  (0.0001 mol He) / (2.0 mol gas) = 0.00005.
4. Convert the mole fraction to ppm: Multiply the mole fraction by 1,000,000:
  0.00005 x 1,000,000 = 50 ppm.

So, the helium mole fraction in the given gas mixture is approximately 50 ppm.

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When both parents shared different traits either it will be heterogeneous or homogenous traits,in that case offspring traits neither belongs to parents.However,chances are very that traits of children neither belongs to parents.

Unaffected parents can create impacted offsprings assuming that the two guardians are transporters (heterozygous) for the attribute being followed in the family. Latent traits are normally not communicated in each age. Finally, guys and females are similarly prone to communicate a latently acquired characteristic.

In the event that the latent characteristic is more than prevailing, the recessive traits will really become predominant and the predominant attribute will become recessive.Recessive alleles are meant by a lowercase letter (a versus A). Just people with an aa genotype will communicate a latent characteristic; consequently, posterity should get one passive allele from each parent to display a latent traits.

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The correct statement about binding energy is: (B) The binding energy per nucleon of a nucleus with A = 144 is more than the binding energy per nucleon of a nucleus with A = 56.

Binding energy refers to the energy required to disassemble the nucleus into its individual nucleons (protons and neutrons). The binding energy per nucleon is a measure of the stability of the nucleus. A higher binding energy per nucleon indicates greater stability.

In general, as the mass number (A) of a nucleus increases, the binding energy per nucleon also increases up to a certain point. This is because the strong nuclear force, which holds the nucleus together, becomes more effective in binding the nucleons as the number of nucleons increases. Thus, larger nuclei tend to have higher binding energy per nucleon.

Therefore, option B is the correct statement, stating that the binding energy per nucleon of a nucleus with A = 144 is more than the binding energy per nucleon of a nucleus with A = 56.

Option A is incorrect because it compares the total binding energy of nuclei with different mass numbers, which does not necessarily reflect the stability.

Option C is incorrect because it states a specific binding energy value for a Nitrogen isotope, which may not be accurate.

Option D is incorrect because nuclei have different binding energies per nucleon, as explained above.

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Increasing the crosslinking or degree of crystallinity of a polymer will enhance its resistance to swelling and dissolution due to the increased strength and stability of the polymer network.

Increasing crosslinking or degree of crystallinity in a polymer affects its resistance to swelling and dissolution in the following ways:

1. Crosslinking refers to the formation of chemical bonds between polymer chains ,resulting in a more rigid and compact structure. When crosslinking increases, the polymer chains become more interconnected and form a stronger network structure. This enhanced network structure results in a higher resistance to swelling and dissolution, as it is more difficult for solvents to penetrate and interact with the polymer chains.

2. Degree of crystallinity refers to the proportion of ordered, crystalline regions in a polymer material. As the degree of crystallinity increases, the polymer becomes more rigid, tighter packing of polymer chains and less permeable to solvents. This is because the crystalline regions are more tightly packed and have stronger intermolecular forces, making it more difficult for solvents to penetrate and cause swelling or dissolution.  As a result, a polymer with a high degree of crystallinity is less likely to absorb moisture or other solvents, making it more resistant to swelling and dissolution.

In summary, increasing the crosslinking or degree of crystallinity of a polymer enhances its resistance to swelling and dissolution by creating a stronger network structure and reducing the permeability of solvents. The stronger and more compact the polymer network, the better it can withstand exposure to solvents or other environmental factors.

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Answer:

A

Explanation:

the same as an electron

Molar concentration of Sodium chloride (NaCl) means the number of moles of sodium chloride present in 1L of water.

Molar mass of NaCl = Molar mass of Na + Molar mass of Cl

Molar mass of NaCl = 23 + 35.5

Molar mass of NaCl = 58.5g

∴ 1L of water contains 55.55 moles of water. Hence,

Mass of ocean water = 55.55 × 18 = 999.9g

Since, 1L of ocean water has a mass of 999.9g of which 3.5% is the salt.

hence, (999.9) (0.035) = 34.99g

So, No. of moles of NaCl = Mass of NaCl / 58g NaCl per mol

No. of moles of NaCl = 34.99/58.5

No. of moles of NaCl = 0.59 moles

So, Molar concentration or Molarity would be 0.59 moles present in 1L of solution.

Hence, Molarity or Molar Concentration = Moles of NaCl/ Volume of solution (in L)

Molarity = 0.59/1L

⇒ Molarity = 0.59M

Hence, the molarity is 0.59M

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