100POINTS! ANSWER ALL 3 PARTS (look at the picture)

The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

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Answer:

Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite

Answer:

The main reason that NO, has a higher boiling point than CO is that NO has a larger molar mass.

The main reason that NH3 has a higher boiling point than CH4 is that NH exhibits hydrogen bonding.

The main reason that CS2 has a higher boiling point than CO2 is that CS2 has a larger molar mass.

Explanation:

The larger the molecular mass, the greater the surface area of the molecule and the greater the magnitude of dispersion forces. Hence, among nonpolar molecules, increase in molecular mass leads to a higher boiling point due to stronger dispersion forces.

Though CO and NO possess dipole-dipole forces, NO has a greater molar mass than CO, hence it has a higher boiling point than CO.

NH3 exhibits intermolecular hydrogen bonding hence it has a much higher higher boiling point than CH4 irrespective of the fact that their molar masses are close in magnitude.

Answer:

The main reason that NO2 has a higher boiling point than CO2 is that NO2 exhibits dipole-dipole forces.

The main reason that CS2 has a higher boiling point than CO2 is that CS2 has a larger molar mass.

The main reason that NH3 has a higher boiling point than CH4 is that NH3 exhibits hydrogen bonding.

Answer:

14.23

Steps given below in the picture

I hope my answer helps you.

The most accurate statement about signal transmissions among the given options is:

a) All signals in transmission will lose clarity with distance.

When a signal is transmitted over a distance, it can experience various types of degradation or attenuation. Factors such as distance, interference, noise, and the medium through which the signal travels can all contribute to a reduction in the clarity or quality of the signal. This means that as the distance between the source and receiver increases, the signal may become weaker, distorted, or prone to interference, resulting in a loss of clarity.

Answer:

i think the answer is 7

Explanation:

Hope this is it

Answer:

C

Explanation:

similar physical properties

Therefore, the freezing point of the solution is 3.173°C.

Freezing point is the temperature at which a liquid substance turns into a solid at a given pressure. At the freezing point, the solid and liquid states of the substance are in equilibrium, meaning that the rate of melting equals the rate of freezing. The freezing point of a pure substance is a characteristic physical property that depends on the substance's chemical composition and can be used to identify it. When a solute is dissolved in a solvent, the freezing point of the solvent is lowered, and the degree of lowering depends on the amount and identity of the solute.

Here,

To solve for the freezing point of the solution, we need to use the formula:

ΔTf = Kf x molality

where:

ΔTf = change in freezing point

Kf = molal freezing point depression constant

molality = moles of solute per kilogram of solvent

First, we need to calculate the molality of the solution:

Mass of naphthalene = 1.45 g

Molar mass of naphthalene = 128.17 g/mol

Number of moles of naphthalene = 1.45 g / 128.17 g/mol = 0.0113 mol

Mass of benzene = 21.6 g

Density of benzene = 0.879 g/mL

Volume of benzene = 21.6 g / 0.879 g/mL = 24.6 mL = 0.0246 L

Mass of benzene = volume x density = 0.0246 L x 0.879 g/mL = 0.0216 kg

molality = moles of solute / mass of solvent (in kg)

molality = 0.0113 mol / 0.0216 kg = 0.523 mol/kg

Now, we can substitute the given values into the formula to solve for ΔTf:

ΔTf = Kf x molality

ΔTf = 4.45°C/m x 0.523 mol/kg

ΔTf = 2.327°C

Finally, we can calculate the freezing point of the solution:

Freezing point of solution = freezing point of solvent - ΔTf

Freezing point of solution = 5.5°C - 2.327°C

Freezing point of solution = 3.173°C

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Answer:   8 x 10^12

Explanation:

The prefix tera means 10^12. Each byte is 8 bits, so a terabyte is 8 x 10^12 bits.

In 1 Terbyte of storage there are \(8\times 10^{12}\).

Explanation:

1 Terabyte = 1000 Gigabyte

1 Gigabyte= 1000 Megabytes

1 Megabytes= 1000 Kilobyte

1 Kilobyte = 1000 Bytes

Given:

A single byte consists of 8 bits

To find:

The number of bits in 1 Terabyte of storage.

Solution:

1 Byte  = 8 bits

So, in Bytes in 1 Terabyte:

\(1 terabytes= 1000\times 1000\times 1000\times 1000 Bytes=10^{12} Bytes\)

Now number of bits in \(10^{12}\) bytes:

\(1Byte=8bits\\10^{12} Bytes=10^{12}\times 8 bits=8\times 10^{12} bits\)

In 1 Terabyte of storage there are \(8\times 10^{12}\) bits.

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Answer:

Energy

Explanation:

Nuclear fusion is the process of combining atoms to make heavier atoms. This releases a huge amount of energy and it is what stars like our sun use to create energy.

An oxygen gas has a volume of 225 mL at 75.0° C and 175 mmHg the volume of the oxygen gas at the new conditions is 12 mL.

We can use the combined gas law to solve for the volume of the oxygen gas at the second set of conditions:

(P1 * V1) / (T1) = (P2 * V2) / (T2)

Where P1, V1, and T1 are the initial pressure, volume, and temperature, and P2, V2, and T2 are the final pressure, volume, and temperature.

Converting the initial conditions to SI units:

V1 = 225 mL = 0.225 L

T1 = 75.0 + 273.15 = 348.15 K

P1 = 175 mmHg = 0.23 atm

Converting the final conditions to SI units:

T2 = 20.0 + 273.15 = 293.15 K

P2 = 11000 mmHg = 14.47 atm

Now we can solve for V2:

V2 = (P1 * V1 * T2) / (T1 * P2)

V2 = (0.23 * 0.225 * 293.15) / (348.15 * 14.47)

V2 = 0.012 L = 12 mL

Therefore, the volume of the oxygen gas at the new conditions is 12 mL.

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Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

Answer:

One way to measure the volume of any irregular object (in your case, a stone) is to submerge it completely under water and measure the change in the height of the water level. This change in the water level (let's say it goes from 50 mL to 65 mL) indicates that the stone has a volume of 15 mL.

The conclusion that can be drawn about lupus is that: Lupus can affect almost every system of the body. Option D. is the correct answer.

What is Lupus (SLE)?

This refers to a disease that happens when your body's immune system attacks your own tissues and organs (autoimmune disease).

Lupus (SLE) can affect the following body parts: joints, skin, kidneys, blood cells, brain, heart and lungs.

Symptoms differ from person to person but can include fatigue, joint pain, rash and fever. These can get worse from time to time (flare up) and then improve.

Lupus has no cure. Current treatments are based on improving quality of life by controlling symptoms and minimizing flare-ups. This starts with lifestyle modifications, including sun protection and diet. Also, disease management includes medication such as anti-inflammatories and steroids.

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Taking into account the reaction stoichiometry, you can observe that:

In first place, the balanced reaction is:

Ca₃P₂ + 6 H₂O  → 3 Ca(OH)₂ + 2 PH₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

Then, by reaction stoichiometry, you can observe that:

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Answer:

Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities. Leaks from underground storage tanks for liquids like gasoline go directly into groundwater.

Explanation:

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A) The chemical symbol for the ion is Fe+

B) It has 20 electrons in total, and there are 6 3p electrons in the ion.

C) There are 6 electrons present in the 3p orbital.

The atomic cation with the given electron configuration is represented by the chemical symbol Fe+.

To determine the number of electrons in the ion, we need to count the electrons present in the electron configuration. In the given configuration, we can see that the 1s orbital has 2 electrons, the 2s orbital has 2 electrons, the 2p orbital has 6 electrons, the 3s orbital has 2 electrons, the 3p orbital has 6 electrons, the 3d orbital has 1 electron, and the 4s orbital has 1 electron. Adding up these numbers, we have:

2 + 2 + 6 + 2 + 6 + 1 + 1 = 20

Therefore, the ion has 20 electrons.

To determine the number of 3p electrons in the ion, we look at the 3p orbital. In this case, there are 6 electrons present in the 3p orbital.

In summary, the chemical symbol for the ion is Fe+, it has 20 electrons in total, and there are 6 3p electrons in the ion.

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Answer:

a gateway drug

Explanation:

a gate way drug forms a bad habit and then lead you into other worse habits

The rate constant for the reaction is either 7.14×10−3 s−1 or 2.50×10−3 s−1, depending on which rate was used to calculate it.

The rate of the reaction is given by the equation:

Rate = -k[A]

where k is the rate constant and [A] is the concentration of the reactant.

Rate at t=140 s:

Rate = (8.00×10−2 M - 0 M) / (140 s - 0 s)

= 5.71×10−4 M/s

Rate at t=400 s:

Rate = (4.00×10−2 M - 0 M) / (400 s - 0 s)

= 1.00×10−4 M/s

Since this is a zero-order reaction, the rate of the reaction is constant, and we can use either rate to calculate the rate constant:

k = Rate / [A]

Using the rate at t=140 s:

k = 5.71×10−4 M/s / 8.00×10−2 M = 7.14×10−3 s−1

Using the rate at t=400 s:

k = 1.00×10−4 M/s / 4.00×10−2 M

= 2.50×10−3 s−1

The rate constant for the reaction is either 7.14×10−3 s−1 or 2.50×10−3 s−1.

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The addition of \(O_2(g)\) will shift the equilibrium towards the right side of the reaction and will consume \(Cl_2(g)\).

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Answer:

a plus sign: +

Explanation:

a plus sign is used to separate one reactant or product from another

Answer:

(Chemical Formulas test)

1.Which formula contains a metal and a nonmetal?

answer:(MGO)

2.Which formula represents a covalent compound?

answer:(H2O2)

3.In the formula for water (H2O), what does the lack of a subscript after the O indicate? answer:(There is one oxygen atom in the compound.)

4.What symbol is used to separate the products from each other or the reactants from each other in a chemical reaction?answer: (A PLUS SIGHN)

5.Which option is a covalent compound?

answer:(NO2)

Explanation:

Took the Test and got 100% thank me later

The net ionic equation for the reaction between potassium sulfide and magnesium iodide is S2- + Mg2+ -> MgS, as the potassium and iodide ions are spectator ions and do not participate in the reaction.

To determine the net ionic equation for the reaction between potassium sulfide (K2S) and magnesium iodide (MgI2), we first need to identify the ions present in each compound and then determine the products formed when they react.

Potassium sulfide (K2S) dissociates into two potassium ions (K+) and one sulfide ion (S2-):

K2S -> 2K+ + S2-

Magnesium iodide (MgI2) dissociates into one magnesium ion (Mg2+) and two iodide ions (I-):

MgI2 -> Mg2+ + 2I-

Now, we need to determine the possible products when these ions combine. Since potassium (K+) has a +1 charge and iodide (I-) has a -1 charge, they can combine to form potassium iodide (KI):

K+ + I- -> KI

Similarly, magnesium (Mg2+) and sulfide (S2-) can combine to form magnesium sulfide (MgS):

Mg2+ + S2- -> MgS

Now, we can write the complete ionic equation by representing all the ions present before and after the reaction:

2K+ + S2- + Mg2+ + 2I- -> 2KI + MgS

To obtain the net ionic equation, we remove the spectator ions, which are the ions that appear on both sides of the equation and do not participate in the actual reaction. In this case, the spectator ions are the potassium ions (K+) and the iodide ions (I-).

Thus, the net ionic equation for the reaction between potassium sulfide and magnesium iodide is:

S2- + Mg2+ -> MgS

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The answer is: The electronic configuration of Nitrogen is \(1s^22s^22p^3\).

Electronic configuration: The electronic configuration is defined as the distribution of electrons of an atom in the atomic or molecular orbitals and is written using the labels for the subshell.

How to decide which orbital is filled first?

(Shown in image)

         \(1s^22s^22p^3\)

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Nitrogen's complete electron configuration is 12s2s22p3.

The shorthand electron configuration for noble gases is [He] 2s22p3. Nitrogen has an atomic number of 7. The nitrogen atoms' nucleus contain this many protons. An atom that is neutral has an equal number of protons and electrons. Thus, the ground state electron configuration will consist of 7 electrons in the suitable s and p orbitals (state of lowest energy). For nitrogen, the entire electron configuration is 1s22s22p. Scientists may easily express and explain how the electrons are organized around the nitrogen atom's nucleus by using the configuration notation for nitrogen (N). As a result, it is simpler to comprehend and forecast how atoms will cooperate to form chemical bonds.

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Answer:

CH

Explanation:

The empirical formular is the simplest formular of a compound. It shows the relative number of elements present in a compounds. It shows the number of atoms of elements present in simple ratios.

In both compounds, the ratio of the carbon to hydrogen s 1:1

In C2H2;

C : H = 2 : 2 (Which is equivalent to 1 : 1)

In C6H6;

C : H = 6 : 6 (Which is equivalent to 1 : 1)

This means the empirical formular is CH

There are about 6.022*10^23 molecules in 1 mole of carbon

Lets say that the required number of moles will be x

1 mole —6.022*10^23

x moles—7.87*10^7

Cross multiply

x=7.87*10^7/6.022*10^23

Answer x=1.3*10^-16

Answer:

1.3 x 10^-16

Explanation:

I know the answer is correct because I got the exact same question during my lesson.

Answer:

(a)

(b)

Refer to the diagram attached for the structures.

Explanation:

Calculate the degree of unsaturation to find the number of rings and multiple bonds (including double bonds) in those isomer molecules. The presence of each ring and each double bond would add one to the degree of unsaturation of that molecule.

Let \(C\), \(N\), \(X\), and \(H\) denote the number of carbon, nitrogen, halogen, and hydrogen atoms in each isomer molecule, respectively.

The degree of unsaturation of one such molecule would be:

\(\displaystyle \frac{2\, C + 2 + N - X - H}{2}\).

For \(\rm C_4 H_8\):

Therefore, the degree of unsaturation of a molecule with the chemical formula \(\rm C_4 H_8\) would be:

\(\begin{aligned}&\text{degree of unsaturation} \\ &= \frac{2\, C + 2 + N - X - H}{2} \\ &= \frac{2\times 4 + 2 + 0 - 8}{2} = 1\end{aligned}\).

In other words, the degree of unsaturation is \(1\) for all isomers with this particular chemical formula. Therefore, each isomer would contain either a ring or a double bond, but not both.

If there is no double bond in one such molecule, there must be exactly one ring per molecule.

The minimum number of carbon atoms in a ring is three. With four carbon atoms in each molecule, there would be either a three-member ring (with one methyl group attached) or a four-member ring.

If there is one double bond in one such isomer molecule, there would not be a ring. Because of the degree of unsaturation, there would be no more than one double bond in each of these molecules.

With four carbon atoms, there are two possible backbones to consider: backbones with three carbon atoms each, and backbones with four carbon atoms each.

The backbone of those molecules might contain three carbon atoms. There would be one double bond in the backbone and one methyl group attached to the carbon atom at the center of the backbone. The corresponding isomer molecule would be 2-methyl-1-propene.

Alternatively, the backbone of those molecules might contain four carbon atoms. There are two possible locations for the double bond:

Notice, that the name 2-Butene refers to two distinct spatial isomers. Unlike carbon-carbon single bonds, groups on the two sides of a carbon-carbon double bond are unable to rotate relative to one another. Therefore, the first and fourth carbon atoms would either be:

Answer:

182.156g

Explanation:

grams = 49/.269 = 182.156g needed

The number of moles of the sodium carbonate would be 0.00200 mol.

The concentration of the HCl would be 0.190 mol/dm^3.

To determine the number of moles of sodium carbonate (Na2CO3) in the given sample, we first need to calculate its molar mass:

Na2CO3 molar mass = 2(22.99 g/mol) + 12.01 g/mol + 3(16.00 g/mol) = 105.99 g/mol

moles of Na2CO3 = mass of sample / molar mass

moles of Na2CO3 = 0.2120 g / 105.99 g/mol

moles of Na2CO3 = 0.00200 mol

Now, to determine the concentration of the hydrochloric acid (HCl) solution, we can use the following equation:

moles of Na2CO3 = moles of HCl

We know that 10.52 cm3 of the HCl solution was required to fully neutralize the Na2CO3. Let's assume that the concentration of the HCl solution is x mol/dm^3. Then we can use the following equation:

moles of HCl = concentration of HCl x volume of HCl solution (in dm3)

0.00200 mol = x mol/dm^3 x 0.01052 dm^3

Solving for x, we get:

x = 0.00200 mol / 0.01052 dm^3 = 0.190 mol/dm^3

Therefore, the concentration of the hydrochloric acid solution is 0.190 mol/dm^3.

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