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Answer: cause the plant needs water so you water it every day effect  the plant will grow big and strong

Explanation:

Conjugated diene is the one that contains alternate double bonds in its structure. That means both the double bonds are separated by a single bond.

Cumulated diene is the one that contains two double bonds on a single atom. This means it has two double bonds continuously.

Isolated double-bonded compound has a single bond isolated by two to three single bonds.

Compound A: Two alkenes are joined by a sigma bond.

For example:

\(-CH_2=CH-CH=CH2-\)

It is a conjugated diene.

Compound B: Two alkenes are joined by a C H 2 group.

It is a cumulative diene.

Compound C: Two alkenes are joined by C H 2 C H 2.

Then it is an isolated alkene.

Compound D:  A cyclohexene has a double bond between carbons 1 and 2. Carbon 3 is an sp 2 carbon that is bonded to another s p 2 carbon with an alkyl substituent.

Hence, compound D is a conjugated diene.

Answer:

0.456 M

Explanation:

Step 1: Write the balanced neutralization equation

HNO₂ + KOH ⇒ KNO₂ + H₂O

Step 2: Calculate the reacting moles of KOH

9.26 mL of 1.235 M KOH react.

0.00926 L × 1.235 mol/L = 0.0114 mol

Step 3: Calculate the reacting moles of HNO₂

The molar ratio of HNO₂ to KOH is 1:1. The reacting moles of HNO₂ are 1/1 × 0.0114 mol = 0.0114 mol.

Step 4: Calculate the initial concentration of HNO₂

0.0114 moles of HNO₂ are in 25.0 mL of solution.

[HNO₂] = 0.0114 mol / 0.0250 L = 0.456 M

I hoped that helped by the way I went on https://doyourmath.com/web-algebrator/#c=solve&v1=1.2%255C%2520x%255C%2520104%255C%2520x%255C%25202.152%255C%2520x%255C%2520102%253D10%255E%257B6%255C%2520%257D%255Cleft%2528%255Cfrac%257B203%257D%257B5.3%257D%255Cright%2529%255Cnl%2520&v2=solve&v3=x To get the answer.

The moles of HNO₃ produced from the reaction of 81.0 g of NO₂ with excess water in the chemical reaction is 1.17 moles.

The balanced chemical reaction is -

3 NO₂(g) + H₂O(l) → 2 HNO₃(g) + NO(g)

First step is to calculate moles of NO₂ -

Number of moles = Given mass

                                 Molar mass

Moles of NO₂ = 81.0 g = 1.76 moles of NO₂

                          46.0 g

We have,

mass of NO₂ = 81.0 g

moles of NO₂ = 1.76 mol

So,

3 moles of NO₂ is required to make 2 moles of HNO₃

1.76 moles of NO₂ is required to make 2 x 1.76 moles of HNO₃

                                                                3

Moles of HNO₃ = 2 x 1.76 = 1.17 mol

                             3

Therefore,

moles of HNO₃ produced by the reaction of NO₂ with excess water is 1.17 moles.

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Answer:

As nouns the difference between disorder and dysfunction is that disorder is absence of order; state of not being arranged in an orderly manner while dysfunction is a failure to function in an expected or complete manner usually refers to a disorder in a bodily organ (eg erectile dysfunction), a mental disorder, or the improper behavior of a social group.

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Answer:

Ca+

Explanation:

Ca+ because it has 20 protons to pull the nucleus in where K+ only has 19 protons.

The reaction occurs at constant pressure, - 385.89 kJ amount of heat is released during the reaction.

The heat released by any reaction will be calculated as:

ΔH = ΔH of products -  ΔH of reactants

Given chemical reaction is:

2CH₄ + 5F₂ → 2CF₄ + 2HF

From the stoichiometry of the reaction, it is clear that,

2 moles of CH₄ = react with 5 moles of F₂

1 moles of CH₄ = react with 5/2 moles of F₂

So, 0.610 moles of CH₄ = react with 0.610×5/2=1.525 moles of F₂

Given moles of F₂ = 0.760moles, which is less as compared to the calculated moles so for this reaction F₂ is the limiting reactant.

From the stoichiometry:

5 moles of F₂ = produce 2 moles of CF₄ & HF each

0.760 moles of F₂ = produce 2/5×0.760=0. 304moles of CF₄ & HF each

From the stoichiometry of the reaction, it is also clear that 0.. 304 moles of CF₄ & HF each require 0.176 moles of CH₄.

We know that the value of heat of formation of the below molecules is as:

CF₄ = -74.8kJ/mole

HF = -271.1 kJ/mole

CF₄ = -925.0 kJ/mole  

F₂ = 0

Now we put all these values on the above equation with their respective moles, and we get

ΔH = (0.176 x -271.1 kJ/mole + 0.176 x -925 kJ/mole) - (0.176 x -74.8 kJ/mole) = - 389.95 kJ

Hence, - 385.89 kJ amount of heat is released.

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Answer:

c

Explanation:

lol

Answer:

Explanation:

Names  -  Formula

peroxide (O2 2−)

cyanide (CN−)

cyanate (OCN−)

thiocyanate (SCN−)

Answer:

See explanation.

Explanation:

Hello,

In this case, we can show how the empirical formula is found by following the shown below procedure:

1. Compute the moles of carbon in carbon dioxide as the only source of carbon at the products:

\(n_C=0.01962molCO_2*\frac{1molC}{1molCO_2} =0.01962molC\)

2. Compute the moles of hydrogen in water as the only source of hydrogen at the products:

\(n_H=0.01961molH_2O*\frac{2molH}{1molH_2O}=0.03922molH\)

3. Compute the mass of oxygen by subtracting the mass of both carbon and hydrogen from the 0.4647-g sample:

\(m_O=0.4647g-0.01962molC*\frac{12gC}{1molC}-0.03922molH*\frac{1gH}{1molH} =0.1900gO\)

4. Compute the moles of oxygen by using its molar mass:

\(n_O=0.1900gO*\frac{1molO}{16gO}=0.01188molO\)

5. Divide the moles of carbon, hydrogen and oxygen by the moles of oxygen (smallest one) to find the subscripts in the empirical formula:

\(C=\frac{0.01962}{0.01188}=1.65\\ \\H=\frac{0.03922}{0.01188} =3.3\\\\O=\frac{0.01188}{0.01188} =1\)

6. Search for the closest whole number (in this case multiply by 2):

\(C_3H_6O_2\)

Moreover, the empirical formula suggests this compound could be carboxylic acid since it has two oxygen atoms, nevertheless, this is not true since the molar mass is 222.27 g/mol, therefore, we should compute the molar mass of the empirical formula, that is:

\(M=12*3+1*6+16*2=74g/mol\)

Which is about three times in the molecular formula, for that reason, the actual formula is:

\(C_9H_{18}O_6\)

It suggest that the compound has a highly oxidizing character due to the presence of oxygen, therefore, we cannot predict the distribution of the functional groups as it could contain, carboxyl, carbonyl, hydroxyl or even peroxi.

Best regards.

The total amount of hydrogen gas generated is 9.76 L, under the condition that 15.9 g of hydrochloric acid reacts with excess zine metal.

Furthermore the balanced chemical equation for the reaction between hydrochloric acid and zinc metal is:
2HCl + Zn → ZnCl₂ + H₂
The molar mass of HCl is 36.46 g/mol.
Then, 15.9 g of HCl is equivalent to 15.9 g / 36.46 g/mol = 0.436 mol of HCl.
As per  the balanced chemical equation, 1 mole of HCl reacts with 1 mole of Zn to produce 1 mole of H₂ gas.
Hence, 0.436 mol of HCl will produce 0.436 mol of H₂ gas.
In Stp (Standard Temperature and Pressure), one mole of any gas occupies 22.4 L.
So, 0.436 mol of H₂ gas will occupy:
0.436 mol × 22.4 L/mol = 9.76 L (approx)
Then, approximately 9.76 L of hydrogen gas will be produced when 15.9 g of hydrochloric acid reacts with excess zinc metal at STP.
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The heat of reaction per mole of BaCl₂ is 366 kJ/mol BaCl₂.

Reaction is a response, typically sudden, to a particular event, situation, or stimulus. It is a type of behavior that occurs as a result of an external force, such as an event, person, or object. Reactions can be physical, emotional, mental, or a combination of all three. Examples of physical reactions include facial expressions, muscle tension, and changes in heart rate and breathing.

The heat of this endothermic reaction can be calculated using the equation q=mc∆T,
where q is the heat,
m is the total mass of the solution,
c is the specific heat capacity of water, and
∆T is the change in temperature.
In this case, the total mass of the solution is 300 mL and the change in temperature is (45.0°C - 15.8°C) = 29.2°C.
The specific heat capacity of water is 4.18 J/g°C.
Therefore, the heat of the reaction is q = (300 mL)(4.18 J/g°C)(29.2°C) = 366 kJ.
Since the reaction is 1 mole of BaCl₂,
The heat of reaction per mole of BaCl₂ is 366 kJ/mol BaCl₂.

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Answer:

0.04 moles

Explanation:

Given data:

Mass of Fe = 2.30 g

Moles of FeCl₃ produced = ?

Solution:

Chemical equation:

2Fe + 3Cl₂         →     2FeCl₃

Number of moles Fe:

Number of moles = mass/molar mass

Number of moles = 2.30 g/ 55.85 g/mol

Number of moles = 0.04 mol

now we will compare the moles of iron and iron chloride.

             Fe            :           FeCl₃

              2            :              2

            0.04        :           0.04

Thus, 0.04 moles of iron chloride are produced.

The number of moles that could be produced is 0.04 moles

Chemical equation:

2Fe + 3Cl₂         →     2FeCl₃

Number of moles Fe:

It should be

\(= mass\div molar mass\\ = 2.30 g\div 55.85 g/mol \)

= 0.04 mol

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Answer:

C. Gases in the atmosphere prevent heat from escaping

Explanation:

Took one for the team and caught an L, C was the right answer

The greenhouse gases are known as the gases which absorb the infrared radiations and create greenhouse effect. Gases in the atmosphere prevent heat from escaping is the greenhouse effect. The correct option is C.

The process by which the radiations of the sun are absorbed by the green house gases and are not reflected back into the space is defined as the greenhouse effect. This insulates the earth and prevents it from freezing.

The green house effect increases the surface temperature of earth and also causes global warming.

Thus greenhouse effect is option C.

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The alcohol  that has the formula as shown and has only one chirality center is shown in the image attached.

We know that a compound is said to be chiral is the compound does contain one or more carbon atoms that is bonded to four different groups or atoms. This chiral carbon is able to rotate the plane of polarized light either to the right or to the left.

We are now asked to draw an alcohol with the formula as have been shown in the question which is going to have only one chirality center and that is the point where the carbon is bonded to four different atoms or groups whilst retaining the formula as we can see in the question.

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An example of heterogeneous equilibrium is:

Heterogeneous equilibrium refers to an equilibrium state in a chemical reaction where the reactants and products exist in different physical states or phases. It occurs when substances in different phases, such as solids, liquids, and gases, are involved in a chemical reaction.

Considering the given equations:

The equation I: FeO(s) + CO(g) ⇌ Fe(s) + CO₂(g) represents a heterogeneous equilibrium.

This is because the reactants and products involve different phases (solid and gas). FeO is a solid (s), CO is a gas (g), Fe is a solid (s), and CO₂ is a gas (g). The reaction involves the conversion of a solid and a gas to another solid and a gas, and the equilibrium is established between these different phases.

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Diffusion and convection are two distinct processes that play a role in the dispersal of air pollution, but they differ in how they transport pollutants and their impact on dispersion.

Diffusion refers to the spontaneous movement of particles from an area of higher concentration to an area of lower concentration. It occurs due to random thermal motion of molecules. In the context of air pollution, diffusion allows pollutants to spread out gradually, dispersing them in various directions. However, diffusion alone is a relatively slow process, particularly for large-scale dispersion, and it may not be effective in rapidly distributing pollutants over long distances.

Convection, on the other hand, involves the transfer of heat energy through the movement of a fluid, such as air or water. In the atmosphere, convection occurs as warm air rises, creating upward currents and transporting pollutants vertically. As the air rises, it carries pollutants to higher altitudes, which can lead to their dispersion over larger areas. Convection is a more efficient process for the vertical transport and dispersion of pollutants compared to diffusion.

The impact of diffusion and convection on the dispersal of air pollution can vary. Diffusion primarily affects local dispersion, allowing pollutants to spread out in the immediate vicinity of emission sources. It is more significant in areas with minimal air movement. Convection, on the other hand, can facilitate the long-range transport of pollutants, particularly when large-scale weather systems are involved. Convection can carry pollutants over greater distances and contribute to regional or even global dispersion, depending on weather patterns.

In summary, diffusion and convection are both involved in the dispersal of air pollution, but they differ in the mechanisms of transport and the scale of dispersion. Diffusion leads to gradual spreading of pollutants locally, while convection enables vertical transport and dispersion over larger areas, including long-range transport depending on weather conditions. Understanding the interplay between these processes is crucial for assessing the extent and impact of air pollution.

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The student's estimated volume was 0.01014 L less than the true volume.

To determine the molar mass of aspirin (HAsp), the student needs to find the number of moles of aspirin that reacted with KOH. The balanced chemical equation for the reaction is: HAsp(aq) + OH-(aq) → Asp-(aq) + H2O(l)

From the equation, we can see that one mole of aspirin reacts with one mole of KOH. Therefore, the number of moles of aspirin can be calculated using the volume and concentration of KOH used in the reaction:

moles of KOH = volume of KOH x concentration of KOH

moles of aspirin = moles of KOH

We can calculate the number of moles of KOH used in the reaction as follows:

moles of KOH = volume of KOH x concentration of KOH

moles of KOH = 0.0176 L x 0.2000 mol/L

moles of KOH = 0.00352 mol

Since one mole of aspirin reacts with one mole of KOH, the number of moles of aspirin is also 0.00352 mol.

The mass of aspirin used in the reaction is given as 1.000 g. Therefore, the molar mass of aspirin can be calculated as follows:

molar mass of aspirin = mass of aspirin / moles of aspirin

molar mass of aspirin = 1.000 g / 0.00352 mol

molar mass of aspirin = 283.5 g/mol

This value is significantly different from the true molar mass of aspirin, which is 180.157 g/mol. The student realizes that his error is in the volume of KOH used in the calculation. To determine the possible error in the volume used, we can calculate the volume of KOH required to obtain the true molar mass of aspirin:

moles of aspirin = mass of aspirin / molar mass of aspirin

moles of aspirin = 1.000 g / 180.157 g/mol

moles of aspirin = 0.005549 mol

Since one mole of aspirin reacts with one mole of KOH, the number of moles of KOH required to neutralize the aspirin is also 0.005549 mol. The volume of KOH required can be calculated as follows:

volume of KOH = moles of KOH / concentration of KOH

volume of KOH = 0.005549 mol / 0.2000 mol/L

volume of KOH = 0.02774 L

Therefore, the volume of KOH used by the student was off by:

error in volume = |true volume - estimated volume|

error in volume = |0.02774 L - 0.0176 L|

error in volume = 0.01014 L

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Answer: 0.27621 g

Explanation:

0.297 ml *0.930 g/ml=0.27621 g

Answer:

Explanation:

a) AgCl(s) in 0.025 M NaCl

Equation:  AgCl(s) ⇄ Ag⁺ (aq) + Cl⁻ (aq)

Initial conc :    S            O               O

equili conc :    O            S                S

                  NaCl(s) ⇒ Na⁺ (aq) + Cl⁻ (aq)

Initial conc :  0.025      0           0

equili conc :     0          0.025    0.025

Therefore the concentration:  Ag⁺ = 6.4 * 10^-9 M,  Cl⁻  = 0.025 M

attached below is the detailed solution of the

The energy of the photon of light can be obtained as 6.27 * 10^-20 J.

We know that a photon has to to do with a particular unit of light. We know that light can be said to be composed of very tiny corpuscles and these corpuscles of light is what we call the photon of the light.

We can be able to us the equation that is derived by Max Plank to be able to get the value of the energy of the photon of light. Now we know that a photon of light can have an energy that is able to be obtained by;

E = hf

h = Plank's constant

f = Frequency

Then;

E = 6.6 * 10^-34 Js * 9.5 * 10^13 Hz

= 6.27 * 10^-20 J

Thus as we can see from the parameters in the question, the energy of the photon is 6.27 * 10^-20 J.

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Answer:

the answer is 6. 2 goes into 12 6 times resulting in the answer 6

Answer:

The number of moles of HCl in the 250 mL volumetric flask is 0.003 moles

Explanation:

Firstly, we solve for the concentration of acid using the formula

CaVa/CbVb = nₐ/nb

where Ca is the concentration of acid

Cb is the concentration of base

Va is the volume of acid

Vb is the volume of base

nₐ is the number of moles of acid (from the equation)

nb is the number of moles of base (from the equation)

Ca × 250/0.09876 × 29.59 = 1/1

Ca = 0.09876 × 29.59/250

Ca = 0.012 M

To determine the number of moles of HCl acid present in the 250 ml volumetric flask, the formula for molarity is used

Molarity = number of moles ÷ volume (in liter or dm³)

Volume needs to be converted to liter; 250 ml ⇒ 0.25 L

Molarity of the acid is 0.012 M

From the formula above, number of moles = molarity × volume (in liter)

number of moles = 0.012 × 0.25

number of moles of acid = 0.003 moles

Answer:

Ans: 8.9 NaCl

Explanation:

Ocean water contains 3.5 nacl by mass how much salt can be obtained from 254 g of seawater

Question: Ocean water contains 3.5% NaCl by mass. How much salt can be obtained from 254g of seawater?

Cu II has a 3d9 electronic configuration, whereas Cu I has a 3d10 configuration. Thus, the electronic configuration of iron follows the guidelines on how to fill the orbitals.

The energy levels of the electronic orbitals are 1s 2s 2p 3s 3p. Due to the fact that one atom can have numerous electronic orbitals, energy levels are classified as particular quantum numbers: 1s 2s 2p 3s 3p 6s 4f 5d 4s 3d 4p 5s 4d 5p 6p 7s 5f 6d 7p. The orbital angular momentum quantum number, indicated by l, can be understood. Cu2+ + 2e- → Cu Oxidation: O2- + H+ + 4e- from 2H2O Overall: Cu + O2- + H+ = 2Cu2+ + 2H2O Cu2+ is reduced because, in order to form Cu, it must gain 2 electrons, and reduction is the gain.

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There are 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).

The term molar mass of a substance is defined as the mass in grams of one mole of the compound. In a substance, the amount of entities present e.g., atoms, molecules, ions. A mole of any substance is 6.022×10²³ molecules.

To calculate, we need to know the number of moles present in 140 grams of carbon.

number of moles = mass/molar mass

molar mass of glucose is = 180 g/mol

Therefore, the number of moles will be ;

140/180 = 0.7778 mole

1 mole of glucose contains 6 moles of carbon;

Then, 0.7778 moles will contain = 4.667 moles

the number of atoms in 1 mole is 6.02 × 10^23 atoms

The number of atoms in 4.667 moles will be :

4.667 × 6.02 × 10^23

= 2.81 × 10^24 atoms

Thus, 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).

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Answer: 10.  39.7 g \(CH_3OH\)

11. 650 g of \(HgO\)

Explanation:

To calculate the moles, we use the equation:

\(\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}\)

a) moles of \(H_2\)

\(\text{Number of moles}=\frac{5.0g}{2.0g/mol}=2.5moles\)

\(CO(g)+2H_2(g)\rightarrow CH_3OH(l)\)

According to stoichiometry :

2 moles of \(H_2\) produce = 1 mole of \(CH_3OH\)

Thus 2.5 moles of  \(H_2\) produce=\(\frac{1}{2}\times 2.5=1.25moles\)  of \(CH_3OH\)

Mass of \(CH_3OH=moles\times {\text {Molar mass}}=1.25moles\times 32g/mol=39.7g\)

Thus 39.7 g of \(CH_3OH\) will be produced from 5.0 g of hydrogen.

11. \(2HgO(s)\rightarrow 2Hg(l)+O_2(g)\)

According to stoichiometry :

1 mole of \(O_2\) is produced by = 2 moles of \(HgO\)

Thus 1.50 moles of  \(O_2\) are produced by =\(\frac{2}{1}\times 1.50=3moles\)  of \(HgO\)

Mass of \(HgO=moles\times {\text {Molar mass}}=3moles\times 216g/mol=650g\)

Thus 650 g of \(HgO\) woukd be decomposed to produce 1.5 mol of oxygen