Write the net ionic equation for the precipitation of aluminum phosphate from aqueous solution

Answer:

sp

The atom of carbon in CO2 has 2 double bonds, one having each atom of oxygen. So, the hybridisation of carbon is sp.

It is true that water has a higher latent heat of vaporization than most other common liquids.

Latent heat of vaporisation is the amount of energy that is required to transform one gram of liquid water into water vapor.

Water has a very high heat of vaporisation because of the network of hydrogen bonding present between water molecules. Water's heat of vaporization is around 540 cal/g at 100 °C.

Compared to other liquid molecules, water has a higher heat of vaporisation.

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The atomic mass comes from isotopes on the periodic table.

Answer:

Osmosis

Explanation:

Water is very essential for the body. When we drink water, our blood cells absorbs water from the body. This happen by a process called as osmosis process. Osmosis is type of diffusion process.

Water along with oxygen and carbon dioxide are some of the simple molecules that moves into the blood cell. Osmosis is the process by which water molecules passes into the cell bodies through its semi permeable membrane.    

Answer: 1. is 70 minutes

2. is 195

Explanation: I took the test and I got a B but for sure it's this

It would take Mr. Bryan's pet turtle 70 minutes to walk 280 feet at a speed of 4 feet per minute.

To calculate the time it takes for Mr. Bryan's pet turtle to walk 280 feet at a speed of 4 feet per minute, we can use the formula:

time = distance / speed

Plugging in the given values, we get:

time = 280 feet / 4 ft/min = 70 minutes

Therefore, it would take Mr. Bryan's pet turtle 70 minutes to walk 280 feet at a speed of 4 feet per minute.

The second one is:

According to the given data:

distance = speed x time

where speed is given as 65 miles per hour (mph) and time is given as 3 hours.

Plugging in these values, we get:

distance = 65 mph x 3 hours = 195 miles

Therefore, San Antonio is 195 miles away from Adrian's mom.

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The statement that "there are many types of energy" is correct. Energy is a fundamental concept in science and refers to the ability of a system to do work or cause a change. There are many different types of energy, each with its own characteristics and properties.

One of the most familiar forms of energy is light energy, which is produced by the sun and other sources of radiation. Sound energy is another form of energy that is produced by vibrations in matter, and it can be detected by the human ear. Thermal energy is the energy associated with the temperature of an object, and it is related to the movement of atoms and molecules within that object.

Chemical energy is stored in the bonds between atoms and molecules, and it is released during chemical reactions. Electrical energy is associated with the movement of electrons through a conductor, and it is used to power many of the devices we use every day. Other forms of energy include nuclear energy, gravitational energy, and kinetic energy.

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The types of reaction are;

1)Synthesis

2) Synthesis

3) Double replacement

4) Double replacement

5) Decomposition

The combining of two or more components to create a new chemical is referred to as a synthesis reaction. As an illustration, a synthesis reaction is the reaction of hydrogen gas with chlorine gas to produce HCl.

In double decomposition reaction, a compound is broken down into two or more simpler components during these processes. Like the breakdown of calcium carbonate above.

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Answer:

There's an experiment that you can try to see if carbon dixide is heavier than air.

Explanation:

At room temperature, carbon dioxide has higher density (ρ = 1.98 kg·m -3) than air (ρ = 1.29 kg·m -3). The density of gas, however, significantly depends on its temperature. Carbon dioxide produced by burning has higher temperature than the surrounding air.

Why is CO2 heavier than the air?

Short answer is CO2 is heavier than ambient air, but it does not drift to the ground as there is a lot of mixing going on in ambient air. ... Carbon dioxide, also known by the chemical formula CO2, has a higher density than the other gases found in air, which makes CO2 heavier than the air.

The correct option is (b) 0.0991 mol. To calculate the number of moles of carbon atoms in 4.56 grams of ethanol (CH3CH2OH), we need to determine the molar mass of ethanol and then use it to convert the given mass to moles.

The molar mass of ethanol (CH3CH2OH) can be calculated by summing the atomic masses of its constituent elements:

Molar mass of C = 12.01 g/mol

Molar mass of H = 1.01 g/mol

Molar mass of O = 16.00 g/mol

Molar mass of ethanol (CH3CH2OH) = (2 × Molar mass of C) + (6 × Molar mass of H) + Molar mass of O

                                = (2 × 12.01) + (6 × 1.01) + 16.00

                                = 46.07 g/mol

Now, we can use the molar mass to convert the given mass of ethanol to moles:

Number of moles = Mass / Molar mass

               = 4.56 g / 46.07 g/mol

               ≈ 0.0991 mol

Therefore, the correct option is (b) 0.0991 mol.

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Explanation:

When the gymnast is standing straight up, gravity acts on the gymnast but the gymnast is able to stay relatively stable.Tihis happens because her center of mass is directly above the beam which means that gravity is pushing her down onto the beam.

HCI + NaOH --> NaCl + H2O

Neutralization reaction is the reaction between acid and base which results in formation of salt and water. Here salt is NaCl (common salt) in above reaction.

SO, (A) H20 + NaCl is your answer.

Answer:

no, but they contain a compound plant called amygdalin, so technocly yes

Explanation:

A.) 7.87 moles of Bi2O3 must react to produce 11.8 moles of CO2 ;  B.) 333.5 grams of Bi2O3 can produce 299.3 grams of Bi ; C.) 9.75 grams of coke can produce 680 grams of Bi.

The symbolic representation of chemical reaction in the form of symbols and chemical formulas is chemical equation.

The balanced equation for the reaction is: 2Bi2O3(s) + 3C(s) → 4Bi(l) + 3CO2(g)

A. From the balanced equation, we can see that for every 3 moles of carbon dioxide produced, 2 moles of Bi2O3 must react.

So, for 11.8 moles of CO2 produced:

moles of Bi2O3 = (2/3) x 11.8 mol = 7.87 mol

Therefore, 7.87 moles of Bi2O3 must react to produce 11.8 moles of CO2.

B.) molar mass of Bi2O3 = 2 x 208.98 g/mol + 3 x 16.00 g/mol = 465.96 g/mol

moles of Bi2O3 = 333.5 g / 465.96 g/mol = 0.7158 mol

moles of Bi = (4/2) x 0.7158 mol = 1.4316 mol

molar mass of Bi = 208.98 g/mol

mass of Bi produced = 1.4316 mol x 208.98 g/mol = 299.3 g

Therefore, 333.5 grams of Bi2O3 can produce 299.3 grams of Bi.

C.) moles of Bi = (4/2) x (9.75 g / 12.01 g/mol) = 3.24 mol

molar mass of Bi = 208.98 g/mol

mass of Bi produced = 3.24 mol x 208.98 g/mol = 680 g

Therefore, 9.75 grams of coke can produce 680 grams of Bi.

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The specific heat of the unknown metal is approximately 0.896 J/g°C.

To determine the specific heat of the unknown metal, we'll use the heat exchange equation:

q = mcΔT

where q is the heat exchange, m is the mass, c is the specific heat, and ΔT is the temperature change.

Since heat gained by the metal is equal to heat lost by water, we have:

q_metal = q_water

m_metal × c_metal × ΔT_metal = m_water × c_water × ΔT_water

Given:

m_metal = 5.00 g

m_water = 50.0 mL (assuming 1 g/mL, mass is 50.0 g)

ΔT_metal = 44.10°C - 99.58°C = -55.48°C

ΔT_water = 44.10°C - 11.25°C = 32.85°C

c_water = 4.184 J/g°C (specific heat of water)

Now we can solve for c_metal:

5.00 × c_metal × (-55.48) = 50.0 × 4.184 × 32.85

c_metal = (50.0 × 4.184 × 32.85) / (5.00 × (-55.48))

c_metal ≈ 0.896 J/g°C

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The ionization values belong to the element magnesium (Mg). Ionization values help us determine the amount of energy that will be required to remove one or more electrons from an atom. The third period is where we can locate the element that has these ionization values.

These ionization values are listed in the table given below:Element: Mg (Magnesium)First ionization energy: 738 kJ/molSecond ionization energy: 1450 kJ/molThird ionization energy: 7732.7 kJ/mol

For a neutral atom, the first ionization energy (IE1) is the amount of energy required to remove an electron from the outermost shell. As we move from left to right in a period, the ionization energy increases. In the third period, Mg (magnesium) has first, second, and third ionization energies of 738 kJ/mol, 1450 kJ/mol, and 7732.7 kJ/mol, respectively. Magnesium is a chemical element that has an atomic number of 12. It has two valence electrons and is located in group 2 of the periodic table. Magnesium has a melting point of 1,202°F (650°C) and a boiling point of 1,994°F (1,090°C). It is a silver-white metal that is widely used in the manufacture of alloys and other industrial applications.

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As we travel down in the group, the halogens' boiling points rise. The resultant molecules may have a single carbon atom or as many as a million.

The attractive force grows as the number of electrons decreases in the group, and more energy is needed to counteract these forces, raising the boiling point.

Fluorine's boiling point of -188°C, Chlorine's of -34.6°C, Bromine's of 58.8°C, and iodine's of 184°C, as well as the trend in melting temperatures, are explained by the strengthening intermolecular interactions that bind the halogen molecules together.

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The size of filter paper you should use with a Hirsch funnel depends on the size of the funnel. if you have a Hirsch funnel with a diameter of 7cm, you might choose filter paper with a diameter of 9cm.

To determine the appropriate filter paper size, you should select a filter paper that is slightly larger in diameter than the widest part of the Hirsch funnel. This allows the filter paper to fit snugly in the funnel and helps to prevent it from folding or collapsing during the filtration process.

For example, if you have a Hirsch funnel with a diameter of 7 centimeters, you might choose filter paper with a diameter of 9 centimeters. This will provide enough excess filter paper to fold over the edges of the funnel and ensure a tight fit.

It's also important to choose the appropriate grade of filter paper based on the nature of the material being filtered and the desired filtration rate. You can consult the manufacturer's instructions or a laboratory handbook for guidance on selecting the appropriate grade of filter paper.

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Water is a polar substance. Polar solvents dissolve polar substances. Now, the bond between carbon and hydrogen is a covalent bond, because the electronegativity difference between these two elements is less than 1.7.

Therefore, the low solubility of hexane is due to the fact that hexane is nonpolar with covalent bonds.

Answer: C) Nonpolar covalent

The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.

Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.

Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.

According to the given data;

Decomposition of carbon monoxide (CO);

Oxygen produced = 3.36 g

Carbon produced = 2.52 g

We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;

Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol

Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol

Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;

0.21 mol C / (0.21 mol O) = x

Simplifying the equation, we have;

x = 1

Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.

Decomposition of carbon dioxide (CO₂);

Oxygen produced = 9.92 g

Carbon produced = 3.72 g

Following the same calculations as before;

Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol

Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol

Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;

0.31 mol C / (0.62 mol O) = y

Simplifying the equation, we have;

y = 0.5

Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.

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--The given question is incomplete, the complete question is

"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--

Answer:

The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium, magnesium, calcium, strontium, barium, and radium.

Hope this helped!

A 20% solution can be made from 45g of NaCl by:

d. 225 mL

To determine how much of a 20% solution can be made from 45g of NaCl, we need to calculate the volume of the solution.

First, we need to understand that a 20% solution refers to 20 grams of NaCl dissolved in 100 milliliters of solution. This means that in every 100 mL of the solution, 20 grams of NaCl is present.

To find out the volume of the solution that can be made from 45g of NaCl, we can set up a proportion:

20 grams / 100 mL = 45 grams / X mL

Cross-multiplying the values, we get:

20 grams * X mL = 45 grams * 100 mL

Simplifying the equation:

20X = 4500

Dividing both sides by 20:

X = 4500 / 20

X = 225

Therefore, the volume of a 20% NaCl solution that can be made from 45g of NaCl is 225 mL.

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The absolute value of G (in J mol1) for the reaction at 300 K is if the pre-exponential factor of the forward reaction is 4 times that of the reverse reaction.

When a reaction's pace and reactant concentration are inversely correlated, the process is known as a first-order reaction. To put it differently, doubling the concentration twice the reaction rate. One or two reactants can be present in a first-order reaction, as in the instance of the decomposition process. The amount of time needed for the reactant levels to decrease to half of their starting value is known as the half-life of a chemical reaction. Relationship between reaction half-life and first-order reactions. The rate constant for first-order reactions is written as s1. The following expression can be used to calculate the rate constant's units: M units of k (1-n). s-1 (where 'n' denotes the reaction's order)

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The percentage weight of a solution containing 3.23 g NaCl in 77 g of the solution is 4.02%.

Mass Percent Concentration (mass %) = mass of solute (g) ÷ mass of solution (g) × 100%

To find the mass percent concentration of NaCl in a solution, divide the mass of the solute (NaCl) by the mass of the solution and then multiply by 100 to get the percentage.

The mass of NaCl in the solution is given as 3.23 g, while the mass of the entire solution is 77 g.

Percent weight = mass of solute ÷ mass of solution × 100% = 3.23 g ÷ 77 g × 100% = 0.0402 × 100% = 4.02%

Therefore, the percentage weight of the solution is 4.02%.

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Answer:

B. control rods and moderators

: PM2.5 is defined as the mass concentration of particles in the air less than or equal to 2.5 micrometers in diameter.Question 15: False, carbon dioxide (CO2) is not considered a criteria air pollutant.

Question 16: The closest answer is 50%, but the exact percentage is not provided in the question.Question 17: The term "photochemical smog" is most synonymous with ozone (O3), which is a criteria air pollutant.Question 18: True, attainment of ambient air quality standards requires that measured concentrations at all monitoring stations within an air district are below ambient air standards.

Question 14 asks about the definition of PM2.5. PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 micrometers. It represents the mass concentration of particles suspended in the air, which are small enough to be inhaled into the respiratory system and can have adverse health effects.

Question 15 states whether carbon dioxide (CO2) is a criteria air pollutant. Criteria air pollutants are a set of pollutants regulated by environmental agencies due to their detrimental impact on air quality and human health. However, carbon dioxide is not considered a criteria air pollutant because it does not directly cause harm to human health or the environment in the same way as pollutants like ozone or particulate matter.

Question 16 asks about the percentage of carbon monoxide (CO) emissions from mobile sources in Santa Clara County. While the exact percentage is not provided in the question, the closest answer option is 50%. However, it is important to note that the precise percentage may vary depending on specific local conditions and emissions sources.

Question 17 inquires about the criteria air pollutant most synonymous with the term "photochemical smog." Photochemical smog is primarily associated with high levels of ground-level ozone (O3). Ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight, creating a hazy and polluted atmospheric condition.

Question 18 addresses the concept of "attainment" of ambient air quality standards. To achieve attainment, measured concentrations of pollutants at all monitoring stations within an air district must be below the established ambient air quality standards. This ensures that the air quality in the given area meets the required standards for protecting human health and the environment.

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Answer: The correct answer is Option A. Compound Y will have the highest boiling point.

Intermolecular forces are the forces that hold the molecules of compounds together. The more the strength of these forces is more will be the force of attraction between them. Hence a compound having stronger intermolecular forces will be hard to break or boil.

So a compound having strong intermolecular force will have a high boiling point as it takes more energy to break apart these molecules.

In the given question compound Y has highest boiling point so it has the maximum intermolecular force between its atoms or molecules.

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Answer:c

Explanation: it’s c

Answer:

10.3 mol Ga(ClO₃)₃

Explanation:

Let's consider the following balanced thermochemical equation.

2 Ga(ClO₃)₃(s) ⇒ 2 GaCl₃(s) + 9 O₂(s)  ΔH = - 130.4 kJ

According to the balanced thermochemical equation, 130.4 kJ of heat are released when 2 moles of gallium chlorate react. The number of moles of gallium chlorate that must react to produce 674 kJ of energy is:

674 kJ × 2 mol Ga(ClO₃)₃/130.4 kJ = 10.3 mol Ga(ClO₃)₃

Thermochemical equations are chemically balanced equations that take into account both the energy change and the physical states of all reactants and products. Energy is a reactant in an endothermic process, whereas it is a product in an exothermic reaction. Here the moles of Ga(ClO₃)₃ is  10.3 mol.

Let's consider the following balanced thermochemical equation.

2Ga(ClO₃)₃(s) ⇒ 2GaCl₃(s) + 9O₂(s)  ΔH = - 130.4 kJ

According to the balanced thermochemical equation, 130.4 kJ of heat is released when 2 moles of gallium chlorate react. The number of moles of gallium chlorate that must react to produce 674 kJ of energy is:

674 kJ × 2 mol Ga(ClO₃)₃ / 130.4 kJ = 10.3 mol Ga(ClO₃)₃

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Answer:

i also need like your question

Explanation:

Which statement is correct about the rocks at this location?

A. All three types of rock will become metamorphic if they stay at the surface of Earth.

B. If this location is buried deep underground, only the metamorphic rock will melt because it has already been heated before.

C. The metamorphic rock and sedimentary rock were already at this location and magma flowed into the other rocks.

D. The igneous rock will become metamorphic rock after the rock in the cliff side turns into sediment.

The sum of 11.35 + 6.8 while considering the proper number of significant figures is 18.2.

To get the sum of 11.35 + 6.8 while considering the proper number of significant figures (sig figs), follow these steps:

1. Identify the number of decimal places in each number:
  - 11.35 has two decimal places.
  - 6.8 has one decimal place.

2. When adding numbers, the result should have the same number of decimal places as the least precise number (the one with the fewest decimal places). In this case, 6.8 has the fewest decimal places (1).

3. Add the numbers and round the result to the same number of decimal places as the least precise number:
  - 11.35 + 6.8 = 18.15

4. Round the result to one decimal place (since 6.8 has one decimal place):
  - 18.15 rounded to one decimal place is 18.2.
So, the sum of 11.35 + 6.8, including the proper number of significant figures, is 18.2.

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