What patterns do you notice between the three maps? Using the concepts
you've learned in this lesson, construct an explanation for these patterns in your
Science Notebook or in the space below.

Answer:

study the natural world

Answer:

C, Scientists study the natural world

Explanation:

Science studies the natural world. This includes the components of the physical universe around us like atoms, plants, ecosystems, people, societies, and galaxies, as well as the natural forces at work on those things.

The number of moles of the carbon dioxide is 3.92 moles.

We know that the number of the moles can be obtained by the use of the equation of the reaction that has been shown in the question as; C₂H4 +302 -------> 2CO₂ + 2H₂O.

We then have that;

Number of moles of the ethylene = 55.0 grams/28 g/mol

= 1.96 moles

If 1 mole of ethylene produces 2 moles of carbon dioxide

1.96 moles of ethylene would produce x moles of carbon dioxide

x  = 1.96 * 2/1 mole

= 3.92 moles

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Three is no change in the blue litmus but the red litmus change color. This is because the ammonia turns red litmus blue due to ammonia.

When ammonium chloride and sodium hydroxide are mixed, they undergo a neutralization reaction to form ammonium hydroxide and sodium chloride. The chemical equation for this reaction is:

NH4Cl + NaOH → NH4OH + NaCl

In this equation, NH4Cl represents ammonium chloride, NaOH represents sodium hydroxide, NH4OH represents ammonium hydroxide, and NaCl represents sodium chloride.

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Answer:

the 2nd choice, nervous and muscular

Answer:

119,059.5 g/mol

Explanation:

First, find the mass of N2

On the periodic table, nitrogen is 14.007

Because there are two nitrogens, multiply it by 2

14.007*2 = 28.014 g

Now convert... (also don't let that exponent intimidate you! You can change it to 4250 if that makes it easier)

4.25 × 10³ mol * 28.014 g/1 mol = 119059.5 g/mol

Answer:

C.0.28 V  

Explanation:

Using the standard cell potential we can find the standard cell potential for a voltaic cell as follows:

The most positive potential is the potential that will be more easily reduced. The other reaction will be the oxidized one. That means for the reactions:

Cu²⁺ + 2e⁻ → Cu E° = 0.52V

Ag⁺ + 1e⁻ → Ag E° = 0.80V

As the Cu will be oxidized:

Cu → Cu²⁺ + 2e⁻

The cell potential is:

E°Cell = E°cathode(reduced) - E°cathode(oxidized)

E°cell = 0.80V - (0.52V)

E°cell = 1.32V

Right answer is:

Answer:

-415.5°F (-248.6°C)

Explanation:

Answer: The melting point/condensation point of neon is 24.53888889. Of course, I'm sure you can round that. The freezing point would be 521.74. All of this is in Kelvin

The photon that carries more energy is the blue photon, and it carries around 50% more energy than the average orange photon (590-620 nm). The law used to solve the previous problem suggests that energy is proportional to the frequency of an electromagnetic wave. Thus, the higher the frequency, the higher the energy. The correct option is C.

In electromagnetic radiation, the energy carried by each photon is directly proportional to the frequency and inversely proportional to the wavelength. Thus, higher frequency photons carry more energy than lower frequency photons.

A photon's energy is directly proportional to its frequency and inversely proportional to its wavelength. Thus, higher frequency photons, such as blue photons, carry more energy than lower frequency photons, such as orange photons. The energy of a photon is given by the equation: E = hf

Where E is energy, h is Planck's constant (6.63 x 10⁻³⁴ J s), and f is frequency.

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The state of Matter in which the  Forces of Attraction is the Weakest is the gaseous state.

The forces of attraction that depends on the intermolecular attractions or the repulsions. The intermolecular repulsions are greater in the gaseous state than the intermolecular forces of attraction. The molecules have the more randomness in the gaseous state as compared to other states. The state of matter that has the least intermolecular forces of the attraction is the gaseous state because of the reason they are in random in the motion.

Thus, in the gaseous state of the matter, the Forces of Attraction the Weakest.

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To oxidize 10 g of cyclohexanol, 200 mL of 5.0% w/v bleach (NaOCl) is needed.

Before calculating the volume of bleach, we need to find:

\(Mass of cyclohexanol = 10 g\\Concentration of bleach (NaOCl) = 5.0\% w/v\\Convert the mass of cyclohexanol to moles.\\Molar mass of cyclohexanol (C6H12O) = 100.16 g/mol\\Moles of cyclohexanol = mass / molar mass\\Moles of cyclohexanol = 10 g / 100.16 g/mol\)

Determine the stoichiometry between cyclohexanol and bleach.

From the balanced equation for the oxidation of cyclohexanol, we know that:

1 mole of cyclohexanol reacts with 1 mole of bleach (NaOCl)

Calculate the moles of bleach required.

\(Moles\ of\ bleach\ (NaOCl) = moles\ of\ cyclohexanol\)

Calculate the volume of bleach using its concentration.

\(Volume\ (in\ mL) of\ bleach = (moles\ of\ bleach / concentration\ of\ bleach) * 1000\\Volume (in mL) of bleach = (moles of bleach / 0.05) * 1000\\Substituting the value of moles of bleach\\Volume (in mL) of bleach = (moles of cyclohexanol / 0.05) * 1000\\Substituting the value of moles of cyclohexanol\\Volume (in mL) of bleach = (10 g / 100.16 g/mol) / 0.05 * 1000\)

Simplifying:

\(Volume\ (in\ mL)\ of\ bleach = 199.64\ mL\)

Therefore, to oxidize 10 g of cyclohexanol, you would need approximately 200 mL of 5.0% w/v bleach (NaOCl).

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H2S has a pressure of 0.368 atm, while NH3 has a pressure of 0.325 atm.

According to the query, the equilibrium partial pressure of NH3 and H2S has the values PNH3 and PH2S. The air is separated in accordance with the numerical equilibrium of the partial pressures of ammonia and hydrogen sulphate. The sum will be as follows:

According to ammonium bisulfite, the NH4HS(s)⇄NH3(g)+H2S(g) reacts with NH3 to produce hydrogen sulphide and ammonia (g)

This reaction will occur at 25°C if K's p-value is 0.120. NH3 has a partial pressure of 0.325 atm, while H2S has a partial pressure of 0.368 atm.

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Answer:

it will take 1 day and 5 hours of work for the second day to earn 160

Answer:

4 times 8 equals 24 . 24 times 6 equals 144 and 24 more is 168$.So it will take 7 Days to get 160$ .

Explanation:

math

Calcium is a exceptionally reactive steel that reacts violently in a much less way with water. When calcium reacts with water, it has a tendency to displace hydrogen from the water.

Along with this, it produces bubbles of hydrogen fueloline in addition to calcium hydroxide. Therefore, an appropriate choice to this query is (D) (iii) and (iv).This is a binary compound and it's far an ionic compound, that is polar ionic compounds which might be polar in nature need to be quite simply soluble in water, however this calcium sulfide is stated to be insoluble in water. So the motives for that is for an ionic compound, that is collar to be soluble.

The calcium carbonate will dissolve withinside the acid generating CO2 fueloline. It will now no longer dissolve in natural water.If CaS had been to dissolve, AH could be high-quality due to the fact the ion-dipole interactions are very vulnerable as compared to the ion-ion interactions being overcome.

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The crystallization makes the protein active. The diffractive pattern observed during X-ray exposure to the crystal can be used to calculate the electron density map of the crystalline protein. this makes option D correct.

Proteins are complex amino acids. They are long chain or structure made up of amino acids. Proteins are of different types, globular protein which are soluble and fiber like protein which are insoluble. Hair, skin,muscles are fiber like proteins. Egg albumin and egg white are gobular proteins. Protein may vary from structure to structure. Some are primary structured, some are secondary, some are tertiary or some are Tetranary. 

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Answer:

1) 1.6 moles of HCl

Explanation:

1) 1.6 moles of HCl

2) 7.0 moles of HCl

3) 2.4 moles of hydrogen

4) 0.96 moles of HCl

Explanation:

The balanced chemical equation is:

According to stoichiometry :

1 mole of  require = 2 moles of  

0.8 moles of  will require=  of  

3.5 moles of  will require=  of  

According to stoichiometry :

2 moles of  produce = 1 mole of  

4.8 moles of  will require=  of  

According to stoichiometry :

1 mole of  are produced by = 2 moles of  

0.48 moles of  are produced by =  of

The hydrogen ion concentration is 2.5 * 10^-8 M

The pH is a measure of the acidity or basicity of a solution. It is defined as the negative logarithm of the concentration of hydrogen ions in a solution. The pH scale ranges from 0 to 14, where a pH of 7 is neutral, a pH below 7 is acidic, and a pH above 7 is basic (alkaline).

Given that;

[H+]  = Antilog (-pH)

= Antilog (-7.60)

= 2.5 * 10^-8 M

The pH is an important concept in many fields, including chemistry, biology, and environmental science. It is used to measure the acidity or basicity of a variety of substances, including soil, water, and biological fluids.

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The best reagent for each step is NaNH2, NH2 and CH3I, and HBr.

First of all in the presence of strong base ammonia, we het the clcylated product chain elongation gives but-2-ene followed by bromination gives 2-dibromobutane.

Alkyne using NH3 gets converted into Elongated chain alkyne followed by Hbr.

The reaction of bromine with (E)-stilbene is a classic reaction performed as an example of an electrophilic addition reaction of alkenes. The reaction is stereospecific through an anti addition to the double bond. The traditional reaction uses a bromine solution in methylene chloride, which has very high toxcity.

This bromination reaction demonstrates the stereochemistry of the electrophilic addition of bromine to an alkene. The bromine in this greener approach is generated in situ and eliminates the use of methylene chloride.

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The number of moles of Nickel (II) Nitrate dissolved in 25.0mL of 0.100M solution can be calculated using the following equation: Molarity = moles of solute / volume of solution

Nickel is an element that is found in the Earth's crust and is most commonly used in the form of a silvery-white metal. Nickel has many uses, including being a component in stainless steel, being used to make coins, and being used in the production of batteries. Nickel is also used in the production of catalysts, magnets, electric motors, and jewelry. Nickel is a versatile element that is highly resistant to corrosion, which makes it a valuable material in many industries. Nickel is also important in the environment, as it helps to regulate the production of certain enzymes and hormones in plants and animals.

Thus, moles of solute = Molarity x volume of solution

Therefore, moles of Nickel (II) Nitrate = 0.100M x 25.0mL = 2.50 moles.

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When 52.0140 grams is added to 50.71 grams, the result is 102.72 grams.

When adding or subtracting numbers, it is important to consider the number of decimal places or significant figures in each value to determine the appropriate number of decimal places in the result.

In this case, we have 52.014 grams and 50.71 grams. Since the number 50.71 grams has the fewest decimal places (two decimal places), we need to round the result to two decimal places.

Adding 52.0140 grams to 50.71 grams gives us a result of 102.7240 grams. However, since we need to round to two decimal places, the final result is 102.72 grams.

Therefore, reported to the correct number of significant figures, the result when 52.0140 grams is added to 50.71 grams is 102.72 grams.

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Answer:

Does the Big Bang theory count?

\(\huge \bf༆ Answer ༄\)

The Correct choice is ~ A

Isotopes are the elements with same Atomic Number but different masses ~

The formula of the hydride formed by bromine is HBr.

Bromine is a halogen element with atomic number 35, and it has a tendency to gain one electron to achieve a stable electron configuration. Hydrogen, on the other hand, has one electron to lose. When these two elements combine, bromine gains an electron from hydrogen, resulting in the formation of a bromide ion (Br^-). Since hydrogen donates its electron, it becomes a positively charged hydrogen ion (H^+). The combination of the bromide ion and the hydrogen ion results in the formation of the hydride compound HBr.

Therefore, the required formula of the hydride is HBr, which is formed by bromine.

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True. Copper does indeed play a role in connective tissue formation as a component of lysyl oxidase.

Copper is an essential trace element that is involved in various biological processes in the human body. One of its crucial roles is as a component of lysyl oxidase, an enzyme responsible for the cross-linking of collagen and elastin in connective tissues. Collagen and elastin are key components of connective tissue, providing strength, elasticity, and structural support to various body parts such as skin, blood vessels, tendons, and ligaments.

Lysyl oxidase requires copper as a cofactor to catalyze the chemical reactions that facilitate the cross-linking process. Without sufficient copper, the activity of lysyl oxidase can be impaired, leading to abnormalities in connective tissue formation and function. Therefore, it is true that copper plays a vital role in connective tissue formation as a component of lysyl oxidase.

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The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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The organic product formed when 1−hexyne is treated with H₂O, H₂SO₄, and HgSO₄ will be 2-hexanone (structure attached).

This reaction is an example of an oxymercuration reaction of the organic product 1−hexyne.

Oxymercuration is shown in three steps to the right. The nucleophilic double bond attacks the mercury ion, releasing an acetoxy group. The mercury ion's electron pair attacks carbon on the double bond, generating a positive-charged mercuronium ion. Mercury's dxz and 6s orbitals give electrons to the double bond's lowest unoccupied molecular orbitals.

In the second stage, the nucleophilic H₂O attacks the highly modified carbon, freeing its mercury-bonding electrons. Electrons neutralize mercury ions by collapsing. Water molecules have positive-charged oxygen.

In the third stage, the negatively charged acetoxy ion released in the first step attacks the hydrogen of the water group, generating the waste product HOAc. The two electrons in the oxygen-hydrogen link collapse into oxygen, neutralizing its charge and forming alcohol.

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Answer:

2 mol CH 4

Explanation:

43.8 x L

----------------                      = 2 mol CH 4

22.4 x L x mol - 1

The balanced chemical equation for the reaction is:
NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)

The given chemical equation represents a double displacement reaction in which sodium chloride (NaCl) reacts with silver nitrate (AgNO3) to form silver chloride (AgCl) and sodium nitrate (NaNO3). The state symbols (aq) and (s) represent that the reactants and products are in aqueous and solid states, respectively. When sodium chloride and silver nitrate are mixed in water, they dissociate into their respective ions as shown below:
NaCl(aq) → Na+(aq) + Cl-(aq)
AgNO3(aq) → Ag+(aq) + NO3-(aq)
On mixing these aqueous solutions, the positively charged silver ions (Ag+) combine with the negatively charged chloride ions (Cl-) to form silver chloride (AgCl), which is a white precipitate (s) that appears in the reaction mixture. Meanwhile, the sodium ions (Na+) and nitrate ions (NO3-) remain in solution and combine to form sodium nitrate (NaNO3) in aqueous form. Thus, the balanced net ionic equation for the given reaction is:
Ag+(aq) + Cl-(aq) → AgCl(s)
Hence, the net ionic equation is obtained by cancelling the spectator ions, i.e., Na+ and NO3- ions, which remain unchanged throughout the reaction.

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Answer: answer A

Explanation: because it gives more detail and a summarizations