7. What is the difference between 0.50mol HCI and 0.50M HCI?

Tetrahedral geometry is common for complexes where the metal has d0 or d10 electron configuration because of sigma donation.

In these cases, the metal center does not have any partially filled d orbitals available for bonding. As a result, the ligands in these complexes typically interact with the metal center through a process known as "sigma donation," in which they donate electron density to the metal's empty s and p orbitals.

This sigma donation process results in a tetrahedral geometry for the complex, as this arrangement allows for the maximum amount of overlap between the ligand orbitals and the empty s and p orbitals of the metal center. Additionally, the tetrahedral geometry minimizes the repulsion between the electron pairs around the metal center, which is energetically favorable.

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Answer:

+ 2 degrees Fahrenheit

Explanation:

Answer:

D.1s2 2s2 2p6 3s2

Explanation:

The electron configuration of magnesium is [Ne] 3s2, where [Ne] represents the electron configuration of a neutral neon atom. This means that magnesium has two electrons in its 3s orbital, with the other ten electrons being in the 1s and 2s orbitals. This electron configuration represents the arrangement of electrons in the shells around the magnesium atom's nucleus. The electron configuration is used to predict the chemical and physical properties of an element and its behavior in chemical reactions.

Allen

Answer:

-data collected from Mauna Loa shows an increase in CO2 by 20% in the last 40 years

-ice core data shows links between CO2 and temperature, with a recent increase in both

-data from ice cores and other proxies show increases in CO2, CH4, and N2O since the Industrial Revolution

Answer:

European stability mechanism

Answer: Benzaldahyde

Explanation: the C₆H₅- represents the substituted benzene ring and the

CHO should represent the functional group of aldehyde

Answer:

The name of the compound is benzaldehyde

The statement "Reaction of heating potassium permanganate produces potassium manganate" is false.

The reaction of heating potassium permanganate (KMnO₄) does not produce potassium manganate (K₂MnO₄). Instead, it undergoes a thermal decomposition reaction, resulting in the formation of different products.

When heated, potassium permanganate decomposes into potassium manganate (K₂MnO₄), manganese dioxide (MnO₂), and oxygen gas (O₂).

The reaction can be represented as follows:

2 KMnO₄(s) → K₂MnO₄(s) + MnO₂(s) + O₂(g)

Therefore, heating potassium permanganate leads to the formation of potassium manganate, along with manganese dioxide and oxygen gas. The color change from purple to green observed during the reaction is due to the formation of potassium manganate.

However, it is important to note that potassium manganate is not the sole product of the reaction but one of the products alongside manganese dioxide and oxygen gas.

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Complete question :

Reaction of heating potassium permanganate produces potassium manganate. T/F

The treatment step involves heating the crude oil in a furnace and then passing it through a distillation column.

During the treatment step in refining crude oil for energy use, the crude oil is processed to remove impurities and separate it into different components based on their boiling points. This step is also known as the refining or distillation process.

The treatment step involves heating the crude oil in a furnace and then passing it through a distillation column. The column has a series of trays or plates, each with a different temperature, which causes the different components of crude oil to vaporize and rise up the column.

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Answer:

the hydrogen and the oxygen are the reactants while the H20(water) formed is the product

The mass of the water that is produced in the reaction is 45 g .

Reaction stoichiometry is a fundamental concept in chemistry and is used in various applications, including determining the efficiency of chemical reactions, calculating reaction yields, and designing reaction processes in industry.

Number of moles of hydrogen = 5g/2 g/mol

= 2.5 moles

Given the balanced reaction equation;

2 mole of hydrogen produces 2 moles of water

2.5 moles of hydrogen would produce 2.5 moles of water

Mass of the water = 2.5 moles * 18 g/mol = 45 g

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Exothermic changes give out energy to their surroundings, causing an increase in heat endothermic changes, take in energy, so the opposite takes place.

The money and the metals did not rust after putting them in water and vegetable oil respectively as money is made up of alloy and oil on metals prevented the process of corrosion.

Corrosion is defined as a natural process where in the metal reacts with oxygen to form a stable oxide and thus leading to the deterioration of the metal, on exposure of the metal to the environment.

Most common form of corrosion is electrochemical oxidation or rusting wherein iron oxides are formed.Rusting usually produces a metallic oxide and a distinct change in color.Corrosion can also take place in ceramics,polymers but in this case the term degradation of ceramics or polymers is more common.

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Answer:

TRUE

Explanation:

The blood alcohol content is also known as the blood alcohol level or the blood alcohol concentration. It is defined as the measurement of the alcohol intoxication in the body and is used for the legal or the medical purposes.

When the BAC increases in the person's body, the person started to loose clear vision, loss of short term memory, poor muscle coordination,  impaired perception and face difficulty in concentrating. Thus it becomes very difficult for a person to drive a car or ride a bike whose BAC has increased.

The driver cannot properly judge the distances between the vehicle and the speed of the vehicle.

Hence the answer is TRUE.

The concentration of particles is also determined by particle size, with smaller particles having a higher concentration than larger particles at the same filtration rate.

The effect of filtration rate on filter performance for particles with diameters of 0.1,1.0, and 10μm using the TE filtration model is a monodisperse media of 0.5 mm diameter, porosity 0.42, particle density 1020 kg/m3, filter depth 1 m, temperature 20 ∘C, Hamaker constant Ha=10−20 J, and attachment efficiency 1.0 is assumed here.

The results of the plot are commentary on the effect of filtration rate and particle size on filter performance. The graph indicates that as the filtration rate increases, the concentration of the particle decreases. Therefore, the filter performance improves as the filtration rate increases.

As the particle diameter increases, the filtration rate and particle concentration decrease. Consequently, the filter performance declines as the particle size increases. As a result, particle size and filtration rate significantly influence filter performance.

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Answer:

Chlorine exists as gaseous state while potassium chloride as a solid

Physical properties between the chlorine and potassium chloride are totally different because chlorine is available in gaseous form while potassium chloride available in solid form. ​

Potassium chloride crystals are composed of face-centered cubic (FCC) unit cells. KCl has a molar mass of 74.5513 grams/mol.

It has a density of 1.984 grams per cubic centimeter when it is solid and crystalline. Potassium chloride has melting and boiling temperatures of 1040 K and 1690 K.

A metal halide salt made of potassium and chlorine is known as potassium chloride. It appears as a white or colorless vitreous crystal and has no odor.

Thus, chlorine is present in gaseous state while ptassium chloride present in solid state.

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Answer:itd a bro

Explanation:dont trust just need points

Answer:

I'd wanna see whats in the nuclues

Explanation:

Because its interesting to know what and how it really looks like up close. I also wanna know if an electron really has a light mass

The true statements from the list are 1. Hydrogen gas is a better reducing agent than tin metal, 2. Tin metal will reduce Cu2+ to copper metal and 3. Copper metal will not reduce H+ to hydrogen gas.

1. Hydrogen gas is a better-reducing agent than tin metal: This is true because hydrogen gas has a lower reduction potential than tin metal. A reducing agent tends to lose electrons and get oxidized, and the lower the reduction potential, the more easily it can lose electrons and act as a reducing agent.

2. Tin metal will reduce Cu2+ to copper metal: This is a true statement. Tin metal has a higher reduction potential than Cu2+, so it can donate electrons to Cu2+ and reduce it to copper metal while getting oxidized to Sn2+.

3. Copper metal will not reduce H+ to hydrogen gas: This is true because copper metal has a lower reduction potential than H+. Copper metal cannot donate electrons to H+ and reduce it to hydrogen gas since it is not strong enough reducing agent compared to hydrogen.

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Answer:

A.) an exothermic reaction that has an increase in disorder.

Explanation:

got it correct (unit review test)

Answer:

b

Explanation:

b

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 12 × 5

We have the final answer as

Hope this helps you

Answer:

4

Explanation:

Answer:

The purpose of all seed is reproduction and is to grow a new plant, thus propagating the species.

Answer: the reactions shifts to the right (products) to produce fewer moles of gas

Explanation:

acellus confirmed

The equilibrium will shift to the right, favoring the formation of more SO₃(g) to reduce the pressure.

According to Le Chatelier's principle, when a system at equilibrium is subjected to a change in temperature, pressure, or concentration of reactants/products, the system will adjust itself to counteract the change and reestablish equilibrium.

In the given reaction, the total number of moles of gas on the left side (2 moles of SO₂ and 1 mole of O₂) is greater than the total number of moles of gas on the right side (2 moles of SO₃). When the container is shrunk to 2.5 L, the volume is reduced, resulting in an increase in pressure.

To counteract the increase in pressure, the equilibrium will shift to the side with fewer moles of gas. In this case, the equilibrium will shift to the right (forward direction), favoring the formation of more SO₃(g). By producing more SO₃, the system effectively reduces the number of moles of gas, thereby decreasing the pressure to reestablish equilibrium.

This shift to the right will increase the concentration of SO₃(g) and decrease the concentrations of SO₂(g) and O₂(g) until a new equilibrium is reached in the smaller 2.5 L container. As a result of this change, more SO₃(g) will be produced, and the reaction will release more heat (198 kJ) to maintain the new equilibrium state.

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The term that represents a separation of charges in a molecule, resulting in partial positive and partial negative charges, is called "polarization."

Polarization refers to the uneven distribution of electron density within a molecule, leading to the formation of partial positive and partial negative charges. This occurs when there is a difference in electronegativity between the atoms involved in the chemical bond. Electronegativity is the measure of an atom's ability to attract electrons towards itself.

In a polar covalent bond, where the electronegativity difference between atoms is significant, one atom pulls the shared electrons closer to itself, creating a partial negative charge (δ-) on that atom. Simultaneously, the other atom has a partial positive charge (δ+) due to the electron density being shifted away from it.

The polarization of molecules plays a crucial role in various chemical phenomena, such as solubility, intermolecular interactions, and the behavior of molecules in electric fields. It is an essential concept in understanding the properties and behavior of many substances in chemistry and related fields

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Answer:

Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels.Carbon dioxide causes about 20 percent of Earth's greenhouse effect; water vapor accounts for about 50 percent; and clouds account for 25 percent.Likewise, when carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere—which then amplifies greenhouse heating

Answer:

A volcanic eruption occurs when molten rock, ash and steam pour through a vent in the earth's crust. Volcanoes are described as active (in eruption), dormant (not erupting at the present time), or extinct (having ceased eruption; no longer active).

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Answer:

190

Explanation:

Gold has atomic number of 79, which is the number of protons.

Mass number = #protons + #neutrons = 79 + 111 = 190

Answer:

The formula AgNO3 gives us 1 Ag atom,

1 N atom and

3 oxygen atoms.

From the periodic table we get the atomic mass of each of these atoms:

Ag 108 g/mol,

N 14.0 g/mol,

O 16.0 g/mol

For each atom, mutiply the number of atoms by its atomic mass, and then sum the values:

molar mass of

AgNO3 = (1 x 108) + (1 x 14.0) + (3 x 16.0) = 170 g/mol

So now let’s return to our four step process to solve the problem.

Here’s the updated data:

n = ? mol,

m = 80.00 g,

M = 170 g/mol

Here’s the formula: n = m / M

Now, substitute the data values into the formula:

n = 80.00 / 170

And calculate the answer: n = 0.4705882353 mol

Rounding the answer to 3 significant figures:

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