what are the stages of breast cancer and what happens in each stage?


actually anatomy & physiology
own words pls i need it now

Answer:

temperature

Explanation:

The specific heat capacity of a substance is the amount of energy required to change the temperature of one kilogram of the substance by one degree Celsius.

Answer:

Ice

Explanation:

its sooooooooooo easy

When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

E°ox of the anode half-cell is 1.051 V.

To determine the E°ox of the anode half-cell, we need to use the following equation: E°cell = E°cathode - E°anode. We are given E°cell (1.587 V) and E°red of the cathode half-cell (0.536 V). We can rearrange the equation to solve for E°ox of the anode half-cell: E°anode = E°cathode - E°cell.

Plugging the values into the equation, we get: E°anode = 0.536 V - 1.587 V = -1.051 V. However, since E°ox is the oxidation potential and we are given the reduction potential, we need to reverse the sign to obtain the oxidation potential. Thus, E°ox of the anode half-cell is 1.051 V.

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The freezing point of the sugar solution will be -0.4464 °C.

The freezing point of a solution depends on its concentration. A solution with a higher concentration will have a lower freezing point than a solution with a lower concentration. In this case, the concentration of the sugar solution is 0.24 m. To determine the freezing point, you need to know the freezing point depression constant, which is a property of the solvent (water in this case).
Assuming that the freezing point depression constant of water is 1.86 °C/m, you can use the formula ΔT = Kf * m, where ΔT is the change in freezing point, Kf is the freezing point depression constant, and m is the molality of the solution.
Substituting the values, you get ΔT = 1.86 °C/m * 0.24 m = 0.4464 °C. This means that the freezing point of the sugar solution will be lowered by 0.4464 °C.
To find the new freezing point, you need to subtract this value from the normal freezing point of water, which is 0 °C. Therefore, the freezing point of the sugar solution will be -0.4464 °C.

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When the relative energies of the conformers of 1,3-butadiene are compared, we can find that the s-cis conformer is lower in energy than the s-trans.

When comparing the relative energies of the s-cis and s-trans conformers the arrangement where the two pi bonds are considered. If the pi-bonds are on the same side of the molecule they are known as s-cis, while the s-trans conformation refers to the arrangement of the molecule where the two pi-bonds are on opposite sides.

The s-cis conformation has higher energy compared to the s-trans conformation due to a higher degree of steric hindrance and electron-electron repulsion. The conformers of 1,3-butadiene indicate that the s-trans conformation is energetically favored and more stable compared to the s-cis conformation.

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The ratio of octene to oxygen is 1:12.

To determine the ratio of octene (C8H16) to oxygen (O2) in the given reaction, we need to examine the balanced chemical equation. However, the equation you provided does not seem to be balanced. The coefficients for each compound must be determined to achieve a balanced equation before we can calculate the desired ratio.

Assuming you meant the combustion reaction of octene, a balanced equation would be:

C8H16 + 12O2 → 8CO2 + 8H2O

From the balanced equation, we can see that for every 1 mole of octene (C8H16), we require 12 moles of oxygen (O2) to completely react.

This means that for every 1 mole of octene, we need 12 moles of oxygen to fully combust the octene and produce the corresponding amounts of carbon dioxide (CO2) and water (H2O) as shown in the balanced equation.

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The main ingredient of most monomer liquids ad powder for nail enhancement is methacrylate polymers ad colorants.

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The cat will be 367.72 centifingers tall.

1 finger = 3.1 inches

Recall that: centi =  \(10^-^2\)

Thus, 1 centifinger = \(10^-^2\) finger

The cat is 11.4 inches tall.

If 1 finger = 3.1 inches

Then, how many fingers will make 11.4 inches?

= 11.4 x 1/3.1 = 3.6772 fingers

3.6772 fingers = 3.6772 x  \(10^2\) centifinger

                          = 367.72 centifingers

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The value of the parameter k in the equation for Fick's Law is:

Fick's Law is given by the equation:

J = -D * A * (∆n / ∆x)

where:

J is the flux or rate of diffusion,

D is the diffusion coefficient,

A is the surface area of the membrane,

∆n is the change in concentration,

∆x is the thickness of the membrane.

In this case, we need to find the value of the parameter k in the equation for Fick's Law.

The value of k is related to the diffusion coefficient (D) by the equation:

k = D / (∆n / ∆x)

We are given the following information:

Membrane thickness (∆x) = 5 × 10^(-8) m

Surface area (A) = 4 × 10^(-8) m

Initial concentration inside the cell (n(0)) = 1.4 M

Concentration after observation (n(0.8)) = 0.91 M

Concentration outside the cell (n(outside)) = 0.9 M

To find the change in concentration (∆n), we can subtract the concentration after observation from the initial concentration:

∆n = n(0.8) - n(0)

∆n = 0.91 M - 1.4 M

∆n = -0.49 M

Substituting the given values into the equation for k, we have:

k = D / (∆n / ∆x)

k = D / (-0.49 M / 5 × 10⁻⁸ m

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Answer:

2C8H18+25O2→16CO2+18H2O.



The molarity of the solution is 2.50 M (reported to two significant figures).

To find the molarity of the solution, we need to calculate the number of moles of calcium nitrite (Ca(NO2)2) and then divide it by the volume of the solution in liters.

First, we need to calculate the number of moles of calcium nitrite:

Mass of calcium nitrite (Ca(NO2)2) = 120 grams

Molar mass of Ca(NO2)2 = (40.08 g/mol + 2 * (14.01 g/mol + 16.00 g/mol)) * 2

= (40.08 g/mol + 2 * 30.02 g/mol) * 2

= (40.08 g/mol + 60.02 g/mol) * 2

= 100.10 g/mol * 2

= 200.20 g/mol

Number of moles = Mass / Molar mass

= 120 g / 200.20 g/mol

= 0.5994 mol

Next, we need to calculate the volume of the solution in liters:

Volume = 240 ml = 240/1000 L = 0.240 L

Finally, we can calculate the molarity (M) using the formula:

Molarity (M) = Number of moles / Volume

= 0.5994 mol / 0.240 L

= 2.50 M

Therefore, the molarity of the solution is 2.50 M (reported to two significant figures).

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Answer:

They are the parts of mechanical energy

Answer:

What this dose not make sence

Explanation:

Please explaplane

Here are the steps in the mechanisms for a) saponification of ethyl benzoate and b) ammonolysis of ethyl benzoate:
Saponification of ethyl benzoate:  The ethyl benzoate reacts with a strong base, such as sodium hydroxide (NaOH), in the presence of water (H2O).

The strong base (NaOH) deprotonates the ethyl benzoate by abstracting a proton from the carboxylic acid group. This forms the corresponding carboxylate anion and ethanol as a byproduct. The carboxylate anion then reacts with the hydroxide ion (OH-) from the base to form a salt known as sodium benzoate. This reaction is called saponification because it produces a soap-like substance.

The ethanol produced in step 2 may further react with the base to form sodium ethoxide and water.
Overall, the saponification of ethyl benzoate produces sodium benzoate and ethanol as the main products. Ammonolysis of ethyl benzoate: The ethyl benzoate reacts with ammonia (NH3) in the presence of a catalyst, such as an acid or base.

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Answer:

10000000

Explanation:

Use wave equation: c=frequency * wavelength

c=3.00*10^8 m/s

Thus,

\(\frac{3.00*10^{8} }{30}\)=10000000

An element can have multiple isotopes. Isotopes correspond to variations of the same element with respect to the number of neutrons in its nucleus. the number they give us, 35 and 37 correspond to the mass number of chlorine. The percentage will be how abundant the element is.

To find the average atomic mass we must multiply the mass of the isotope by its respective percentage of abundance and add these two results.

So, the average atomic mass of Cl will be:

Answer: the average atomic mass of chlorine is 35.454 amu

The law of conservation of the mass is useful for the chemical changes as  if the substance undergoes the chemical change, the product will  have the same mass though it.

The law of conservation of the mass states that the mass is neither created nor be destroyed, it can be only  transformed. The mass of the product  formed  is exactly equal to the mass of the reactants. If the original substance will undergoes the chemical change, the product formed will  have the equal mass of the reactant though it can  be present  in the another form.

Thus, the law of the conservation of mass is related to the chemical change as the mass neither be created nor be destroyed.

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Answer:

70°C,130.9 ................,...

Answer:

ion- ion> H - bonding > dipole > dipole> london dispersion

Sound waves is not the form of electromagnetic radiation.

The information regarding electromagnetic radiation is as follows:

Therefore we can conclude that sound waves is not the form of electromagnetic radiation.

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Answer:

The rate constant (k) of the reaction is 0.0531 min^-1.

Explanation:

In a first-order reaction, the rate of the reaction is proportional to the concentration of the reactant raised to the power of 1. The rate law for a first-order reaction can be expressed as:

rate = k[A]

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

The half-life of a first-order reaction is the time it takes for half of the reactant to be consumed. The half-life of a first-order reaction can be calculated using the following formula:

t(1/2) = ln(2) / k

where ln(2) is the natural logarithm of 2 (approximately 0.693).

In this problem, we are told that 50.0% of the compound decomposes in 13.0 min. This means that the initial concentration of the compound ([A]0) has been reduced by half ([A]/[A]0 = 0.5) after 13.0 min. Using the half-life equation, we can solve for the rate constant (k):

t(1/2) = ln(2) / k

13.0 min = ln(2) / k

k = ln(2) / 13.0 min

k ≈ 0.0531 min^-1

Rounding to four decimal places, the rate constant is approximately 0.0531 min^-1.

In a first-order decomposition reaction, 50.0% of a compound decomposes in 13.0 min then the rate constant of the reaction will be approximately 0.0531 min²-1.

The first-order rate law is expressed as:

Rate = k[A]

where k is the rate constant, [A] is the concentration of the reactant, and the exponent 1 indicates that this is a first-order reaction.

We can use the following equation to relate the fraction of the original compound remaining after a certain time, t, to the rate constant:

ln ([A]t / [A]0) = -kt

where [A]t is the concentration of the compound at time t, [A]0 is the initial concentration, and ln is the natural logarithm.

In this case, we know that 50.0% of the compound has decomposed, so [A]t / [A]0 = 0.5. We also know that t = 13.0 min. Plugging in these values, we get:

ln (0.5) = -k * 13.0 min

Solving for k, we get:

k = -ln(0.5) / 13.0 min ≈ 0.0531 min²-1 (rounded to four decimal places)

Therefore, the rate constant of the reaction is approximately 0.0531 min²-1.

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Answer:

number 4. Ammonia

Answer:

160 I think or 200

Explanation:

the lines are pulling on the same side so you add those

After the dillution of the solution, the wavelength of maximum absorption is decreased.

The wavelength of maximum absorption is the wavelength at which the solution absorbs the maximum amount of light. It is usually shown as a hump in the spectrum.

When the starting concentration of the  K2Cr2O7 is diluted, the wavelength of maxium absorption decreases.

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Answer:

the answer is k? lol thanks

Answer:

K

Explanation:

It is K

=========

Not K+ nor the other options, it is K

Answer:

Similar properties

Explanation:

Potassium (K) has atomic number 19 which means its electron configuration (pattern of electrons in it's energy levels (electron shells)) is 2·8·8·1 while Copper (Cu) has atomic number 29 which means its electron configuration is 2·8·8·8·3 hence Potassium has 4 electron shells while Copper has 5

Potassium has 19 protons (from its atomic number) while Copper has 29 protons

The number of protons and electrons is usually the same (in an atom) (that's why atoms don't naturally have charges i.e they're usually neutral) so Potassium has about 19 electrons while Copper has about 29 electrons.

So similar properties automatically becomes your answer cuz the rest are wrong.

Answer: okay

Explanation:

Answer:

What exactly do you want help with

Explanation:

Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

Answer:

1.1 mol of O2

Explanation:

First we need the balance chemical equation which is

2 H2O2 -------> 2 H2O + O2

This is important because in stoichiometry you can go from units of one thing to other by using mole ratios, here the mole ratio is 2 mol of H2O2  for one mole of O2.

\(2.2 mol H2O2 \frac{1mol O2}{2 mol H2O2}\) = 1.1 mol of O2