100 POINTS AND BRAINLIEST FOR HELP
Write a paragraph that explains diffusion and osmosis and how it relates to the circulatory system. Each sentence should be typed in the appropriate color.

It should include an introductory sentence that restates the question. A sentence that explains diffusion. A sentence that explains osmosis and at least 2-3 sentences that explain the relationship between diffusion, osmosis and the circulatory system. And, lastly, a conclusion sentence.

Answer:

See explanation below

Explanation:

In this case, we can use the Boyle's law. Assuming that the temperature of both trial remains constant, then:

P₁V₁ = P₂V₂    (1)

You should note that this expression is usable when you are dealing with gases. However, we can treat this unknown liquid as a gas, because all the air on the flask is removed, and we can assume that the liquid can behave like an ideal gas.

So using the above expression, we can solve for P₂:

P₂ = P₁V₁ / V₂    (2)

In this case, we already have the values of presures and volume, so replacing in this expression:

P₂ = 34.5 * 5 / 214

This should be the pressure of the liquid.

Hope this helps

An atomic orbital is a mathematical feature describing the region and wave-like behavior of an electron in an atom. This characteristic can be used to calculate the opportunity of finding any electron of an atom in any precise location across the atom's nucleus.

An atomic orbital is regularly idea of as a location of space wherein there is an excessive opportunity of finding an electron. Every energy level corresponds to an orbital of a one-of-a-kind form, which describes wherein the electron is probable to be observed.

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Answer:

B. Color change

3&5

hope this helps <3

have a great day/night

-Dan

Answer:

2NaCN + CaCO3 --> Na2CO3 + Ca(CN)2

Explanation:

Knowing the names gets us: NaCN + CaCO3 --> Na2CO3 + Ca(CN)2

Balance: there are two sodiums and cyanides on the product side so add a 2 to the reactant side.

Answer:

Water softening is the process of removing the dissolved calcium and magnesium salts that cause hardness in water

Explanation:

The measure of the length of events and the duration of intervals between events is time.

The duration of events or the gaps between them can be measured, compared, or even ordered using time. The lengthy period of time that the Earth's geologic history takes up is known as geologic time. Starting at the beginning of the Archean Eon  formal geologic time runs until the present. Geology is defined as the "Science of the Earth."

Geology is the fundamental Earth science that examines how the earth created, its structure and composition, and the various forces acting on it. It is sometimes known as geoscience or earth science.

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Answer:

The answer is C. the child receives half of is genetic information from each parent

Explanation:

hope this helps enjoy

Answer: 4.5 moles

Explanation:

To understand how to solve this problem, you must understand the ratios written in this chemical equation.

The equation shows that 4 moles of Al forms 2 moles Al₂O₃. This creates the ratio 2:4 or \(\frac{2}{4}\)

To solve, you can set the two ratios to each other and cross multiply.

\(\frac{2}{4} = \frac{x}{9}\)

18 = 4x

x = 4.5 mol Al₂O₃

*both \(\frac{2}{4}\) and \(\frac{4.5}{9}\) can be simplified as \(\frac{1}{2}\), which verifies your answer*

Answer:

The pressure at equilibrium of Br₂ is 0.10048 atm

Explanation:

Based on the reaction:

Br₂(g) + 3 F₂(g) ⇄ 2 BrF₃(g)

Kp is defined as:

\(Kp = \frac{P_{BrF_3}^2}{P_{Br_2}P_{F_2}^3}\) = 5.4x10⁸

If initial pressures of Br₂ and F₂ are 0.30atm and 0.60atm respectively, the pressures in equilibrium are:

Br₂ = 0.30atm - X

F₂ = 0.60atm - 3X

BrF₃ = 2X

Replacing in Kp formula:

5.4x10⁸ =  [2X]² / [0.30atm - X] [0.60atm - 3X]³

5.4x10⁸ = 4X² / [0.30 - X] [0.216 - 3.24 X + 16.2 X² - 27 X³]

5.4x10⁸ = 4X² / 0.0648 - 1.188 X + 8.1 X² - 24.3 X³ + 27 X⁴

Solving for X:

X = 0.3000 → False answer because produce negative concentrations.

X = 0.19952. Replacing in equation of Br₂:

Br₂ = 0.30atm - 0.19952atm = 0.10048 atm

Answer:

Copper will start to react with the oxygen in the air to form copper oxide. The copper oxide will continue reacting to oxygen over time. As the copper oxide continues to react with carbon dioxide and water in the air it coats the surface with that iconic blue-green patina colour

Answer:

isoborneol and camphor both have methyl groups that have different shielding zones with -OH and -C=O groups respectively.

Explanation:

Using the knowledge of chemical shift we can see that out of the three methyl groups in isoborneol, there are two methyl groups that are not influenced by the chemical Influence of the -OH functional group while one of the methyl groups is influenced by the -OH functional group.

For Camphor, two out of the three methyl groups are in shielding zones of the Carbonyl group, -C=O. While the last of the three methyl groups is out of the shielding zones of Carbonyl group, -C=O.

Answer:

One atom of sulfur has a mass of 32.07 AMU; one mole of S atoms has a mass of 32.07 g.

Explanation:

Therefore, the answer should be 32.07 g

Crystalline solids often fall into one of four categories. These categories include network covalent solids, ionic solids, metallic solids, and molecular solids.

In contrast to its non-crystalline form, a crystalline structure comprises highly tightly packed atoms, leading to a high density of the material.

Four categories of crystalline solids exist in solid ions Electrostatic attractions keep positive and negative ions together as they develop. They stand out in the solid state due to their extremely high melting temperatures, brittleness, and poor conductivity.

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Answer:

92.4%

Explanation:

The volume per cubic meter of sodium preoccupy by the sodium ions is

\(V_{Na} = n \times V\)

where;

volume (V) of each Na atom   = \(\dfrac{ 4}{3} \pi r^3\)

Radius of each ion = 97.3 pm = 97.3 × 10⁻¹²

no.of atoms in the sample n =  mass of the sample / ( molar mass / NA)

mass of the sample per cubic metre =  911 kg/m³

∴

\(V = \bigg [ \dfrac{4}{3} \pi r^3 \bigg ] \bigg [\dfrac{MN_A}{m} \bigg ]\)

\(V = \bigg [ \dfrac{4}{3} \pi (97.3 \times 10^{-12} )^3 \bigg ] \bigg [\dfrac{ (911 kg/m^3 (m^3))(6.023\times 10^{23})}{27.7 \times10^{-3}\ kg/mol } \bigg ]\)

V = 0.07643 m³

The fraction of available conduction electrons are;

= (1 - V)

= 1 - 0.07643

= 0.92357

≅ 92.4%

Answer:

Explanation:

liquid

The experiment looks into how temperature impacts how quickly magnesium metal reacts with hydrochloric acid. The creation of hydrogen gas over time is used to determine the dependent variable, which is the reaction rate.

The experiment can be run at various temperatures to change the experiment's independent variable, which is the reaction mixture's temperature. Higher temperatures cause molecules to move more quickly, increasing the likelihood of reactant collisions and kinetic energy. By enabling more successful collisions between magnesium atoms and hydrochloric acid, can quicken the reaction and increase the amount of hydrogen gas produced. In contrast, it is anticipated that the reaction rate will be slower at lower temperatures since there will be less molecular mobility and fewer successful collisions.

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--The complete Question is, What is the effect of temperature on the rate of reaction between hydrochloric acid and magnesium metal?

The dependent variable in this experiment is the rate of reaction, which can be measured by monitoring the production of hydrogen gas over time. The independent variable is the temperature of the reaction mixture, which can be controlled and varied by conducting the experiment at different temperatures.--

Answer:

14.

Explanation:

Answer:

14 hope this helps

Explanation:

Atomic Mass-Atomic  Number my guy

Heat lost (metal)=Heat gained (water)

Q in = Q out

So energy gained by the water = 1200 J

Answer:

A

Explanation:

common sense

Answer:

are you good at sailing A.

Answer:

A green liquid becoming a red liquid.

Explanation:

If the color change is unexpected it is a chemical change.

(If 2 clear liquids make a black, red, green, ect color it is a chemical change)

no normal color mix makes green turn red.

Answer:

\(\%m/m=10.6\%\)

Explanation:

Hello!

In this case, since the by-mass percent is defined by:

\(\%m/m=\frac{m_{solute}}{m_{solution}} *100\%\)

Thus, since the given 1.77 M solution is given in terms of mol/L, we need to compute the mass of acetone via its molar mass and the volume of solution in L to g via the density:

\(\%m/m=1.77\frac{mol}{L}*\frac{58.08g}{1mol}*\frac{1L}{1000mL}*\frac{1mL}{0.971g} *100\%\\\\\%m/m=10.6\%\)

Best regards!

Each kind of scientist is matched with an aspect of the hot spring he or she is most likely to study as follows:

A scientific observation can be defined as an active acquisition of knowledge (information) through one of the sense organs, while using scientific tools and instruments.

In Science, there are two main types of scientific observation and these include the following:

A hot spring can be defined as a natural or an artificially-induced phenomena in which very hot groundwater flows out from the Earth's crust due to the heat present in the geosphere.  

In this exercise, you're required to match each kind of scientist with an aspect of the hot spring he or she is most likely to study as follows:

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Complete Question:

Match each kind of scientist with an aspect of the hot spring she or he might study.

A. Geologist

B. Ecologist

C. Sociologist

D. Meteorologist

1. Relationships between organisms and the hot spring.

2. Human behavior around the hot spring.

3. Rocks around and under the hot spring.

4. Atmosphere and weather around the hot spring.

The SO2 Lewis structure would consist of two oxygen (O) atoms and one sulfur atom.

Both the sulfur and oxygen atoms have six reactivity electrons. The molecular geometry of sulfur dioxide is a bent form. The sulfur-to-oxygen ratio in sulfur dioxide. Sulfur dioxide and SiCl4 have 1 lone pair and 2 bond pairs.SO2 molecular addition is considered to V-shaped or bent. otherwise, the electron geometry of sulfur dioxide is in the shape of a trigonal planar. The three pairs of bonding electrons lie at an angle of 119o.

The bond sequence and 1.2 in SO2 and the sulfonyl group, separately. Thus, electrostatic forces (and not multiple covalent bonding) give more to the SÀO bond shortening. In the SO2 lewis structure, there are two double bonds linking the sulfur atoms and oxygen atoms. The sulfur dioxide lewis structure is drawn step by step using VESPR

So we can conclude that The electron dot form of the SO2 molecule is also known as the SO2 Lewis structure.

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Answer:

ΔEN CO   = 1.0

Explanation:

To calculate the electronegativity difference, we have to substract the element which has the highest EN to the other, that has a low value.

For this case EN from O - EN from C

Electronegativity is a property of the periodic table that increases diagonally, where Fr and Rb are the elements of less EN while F is the most electronegative element, with a value of 4. This is because F is an element with a high ionization energy and a negative electronic affinity.

ΔEN CO  = 3.5 - 2.5 = 1.0

Electronegativity (EN) describes the ability of an atom to compete for

electrons with other atoms to which it is attached.

The kind of substance which the original white powder that is isolated from lemon juice is: A an acid.

pH simply refers to an abbreviation for the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions in a particular chemical substance or solution.

This ultimately implies that, a pH scale can be used to measure and specify the acidity, neutrality or basicity (alkalinity) of any chemical substance or solution.

On a pH scale, a chemical substance or solution with a pH of 7 is neutral, a chemical substance or solution with a pH below 7 is acidic, and a chemical substance is basic (alkaline) when it's pH is above 7.

In this scenario, this original white powder is an acid because it has a pH of 3.0.

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The pOH of the 0.001 M NaOH solution is approximately 3.

To determine the pOH of a solution, we need to know the concentration of hydroxide ions (OH-) in the solution.

In the case of a 0.001 M NaOH solution, we can assume that all of the NaOH dissociates completely in water to form Na+ and OH- ions. Therefore, the concentration of hydroxide ions in the solution is also 0.001 M.

The pOH is calculated using the equation:

pOH = -log[OH-]

Substituting the concentration of hydroxide ions, we have:

pOH = -log(0.001)

Using a calculator, we can evaluate the logarithm:

pOH ≈ 3

Therefore, the pOH of the 0.001 M NaOH solution is approximately 3.

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The equation that can be said to show incomplete combustion is option A

Unburned carbon particles and carbon monoxide (CO), as well as water vapor and other byproducts, are examples of incomplete combustion products that are produced when a fuel does not completely react with the oxygen that is present during the combustion process.

Complete combustion occurs when a fuel combines with oxygen in the presence of enough heat to produce the primary byproducts of carbon dioxide, water, and heat.

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It would require approximately 600 kilojoules of energy to vaporize 2 kg of copper.

To calculate the energy required to vaporize a substance, we need to consider the heat of vaporization, which is the amount of energy required to convert a given amount of substance from its liquid state to its gaseous state at a constant temperature.

The heat of vaporization for copper is approximately 300 kJ/kg (kilojoules per kilogram) at its boiling point, which is around 2567 degrees Celsius (4649 degrees Fahrenheit). This means that for every kilogram of copper, 300 kJ of energy is needed to vaporize it.

Given that you have 2 kg of copper, we can calculate the total energy required as follows:

Energy = Heat of Vaporization × Mass

Energy = 300 kJ/kg × 2 kg

Energy = 600 kJ

Therefore, it would require approximately 600 kilojoules of energy to vaporize 2 kg of copper.

It's worth noting that the heat of vaporization can vary slightly depending on the purity of the copper and the specific conditions, such as temperature and pressure. The value provided here is an approximation. Additionally, it's important to handle copper and any high-temperature processes with caution, as they can pose safety hazards.

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The reaction rate to the nearest whole number is 36.1 mg/l/sec.

To calculate the reaction rate we would use the formula already provided which is: mass of tablet/volume of water ÷ Reaction time.

For the tablet with a 3°C Reaction time, we would calculate the rate as follows:

1000 mg * 0.2L/138.5 sec = 36.1 mg/L/sec.

The final result has all three variables and the resulting answer is the reaction rate.

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Complete Question:

Assume that each tablet's mass was 1,000 mg, and remember that you used 0,200 L of water each time,

Compute the reaction rate to the nearest whole number using the formula below,

mass of tablet/volume of water

Reaction Rate = mass reaction time

3°C Reaction time = 138.5 sec

Reaction rate = mg/l/sec