Name and write one polyatomic ion with its charge.

Answer:

Explanation:

aluminum

Answer: The aluminum ion

Explanation:

The system from the description must be an open system. Option C

An open system is one that communicates with and is influenced by its surroundings. An open system interacts with its environment by exchanging matter, energy, and information, as opposed to a closed system, which is self-contained and runs autonomously.

The idea of open systems highlights how interconnected and reliant on its environment a system is. For the analysis of system behavior, adaptability, and responses to external forces, understanding these interconnections is essential.

Learn more about open system:https://brainly.com/question/29977128

#SPJ1

Answer: D

Explanation:

Earth's ozone depleting substances trap heat in the air and warm the planet. The fundamental gases answerable for the nursery impact incorporate carbon dioxide, methane, nitrous oxide, and water fume (which all happen normally), and fluorinated gases (which are manufactured). The most mainstream ozone depleting substance is Water Vapor. The appropriate response is D.

The correct option for the given question about Green House Effect is Option D) Increasing the CO₂ concentration in the atmosphere.

Thus we can conclude that as CO₂ is a green house gas, the increase in concentration of CO₂  in the atmosphere will make the green house effect stronger.

Learn more about Green House Effect here:

https://brainly.com/question/19521661

#SPJ2

Answer:

Molarity indicates the number of moles of solute per liter of solution and is one of the most common units used to measure the concentration of a solution.

Explanation:

Answer:

concentration

Explanation:

Answer:

19.5 mL

Explanation:

A 12.1 M HCl solution with a density of 1.19 g/mL has a molality of 16.1 m.

Molality is defined as the total moles of a solute contained in a kilogram of a solvent.

Let's suppose we have 1 L of the solution.

The solution is 12.1 M, that is, there are 12.1 moles of HCl in 1 L of solution.

The molar mass of HCl is 36.465 g/mol.

12.1 mol × 36.465 g/mol = 441 g

The density of the solution is 1.19 g/mL.

1000 mL × 1.19 g/mL = 1190 g

In 1190 g of solution, there are 441 g of HCl.

mWater = 1190 g - 441 g = 749 g = 0.749 kg

b = 12.1 mol / 0.749 kg = 16.1 m

A 12.1 M HCl solution with a density of 1.19 g/mL has a molality of 16.1 m.

Learn more about molality here: https://brainly.com/question/14623340

In order to find the answer for this question we will use the Molarity formula, which is:

M = n/v

where

M = molar concentration or molarity in mol/L

n = number of mols

v = volume in Liters

Now using the values given in the question we will have:

0.220 = n/0.225

n = 0.0495 moles of solute

Answer:

B

Explanation:

The picture looks like it is of fungi and fungi is not identified as either plants or animals. They form their own kingdom of life and don't classify as plants or animals.

\(Hello!\)

Your answer is correct.

Because, it doesn't classifed as a animal nor a plant.

Hopefully, this helps you!!

\(Sokka\)

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

When fossil fuels burn, several forms of energy are produced, including:

Heat energy: The primary form of energy released during fossil fuel combustion is heat. Fossil fuels contain chemical energy stored for millions of years, and when they burn, this energy is released in the form of heat. The heat energy can be harnessed for various purposes, such as heating buildings or generating steam to drive turbines.

Light energy: Burning fossil fuels can also produce light energy in the form of flames or glowing embers. This light energy is a byproduct of combustion.

Mechanical energy: Heat generated by burning fossil fuels can be converted into mechanical energy. This is typically achieved by using heat to produce steam, which drives a turbine connected to a generator. The rotating turbine converts the heat energy into mechanical energy, which is further transformed into electrical energy.

Electrical energy: Through the process described above, burning fossil fuels can ultimately generate electrical energy. The mechanical energy produced by the turbine is converted into electrical energy by the generator. Electrical energy can power various devices, appliances, industries, and infrastructure.

It's critical to note that while burning fossil fuels can produce useful forms of energy, it also results in the release of carbon dioxide and other greenhouse gases. This contributes to climate change and environmental concerns. As a result, there is a global shift towards cleaner and renewable energy sources to mitigate these negative impacts.

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.

Learn more about time  at;

https://brainly.com/question/479532

#SPJ1

Nitrogen gained 4 electrons.

Because Nitrogen's redox number went from +6 to +2, it must have gained 4 electrons (-4) in order to achieve this number. Thus, Nitrogen is reduced.

Answer:

D. The products of the the change are warmer than the starting materials.

Explanation:

Answer:

Option D

Explanation:

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds.

CaBr2 + 2NaOH → Ca(OH)2 + 2NaBr

Calcium Bromide + Sodium Hydroxide = Portlandite + Sodium Bromide

Answer: metal turn orange and weaker as it gets oxidised

Explanation:

Phosphatidylserine is a type of phospholipid that is mainly found in cell membranes. Its structure is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule.

The fatty acid chains are hydrophobic, meaning they repel water, while the phosphate group and serine molecule are hydrophilic, meaning they attract water.

The glycerol molecule acts as a bridge that connects the two fatty acid chains to the phosphate group and serine molecule.
The structure of phosphatidylserine is important for its function in the cell membrane.

Because of the hydrophobic and hydrophilic components of its structure, phosphatidylserine is able to form a lipid bilayer, which is a barrier that separates the inside of the cell from the outside environment.

The hydrophilic heads of the phosphatidylserine molecules face outward and interact with water, while the hydrophobic tails face inward and repel water.
Phosphatidylserine also plays a role in cell signaling and apoptosis, which is programmed cell death.

It acts as a signaling molecule by binding to proteins that are involved in cellular pathways.

In addition, phosphatidylserine is translocated to the outer leaflet of the cell membrane during apoptosis, which signals to immune cells that the cell is ready to be removed.
In conclusion, the structure of phosphatidylserine is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule. Its hydrophobic and hydrophilic components allow it to form a lipid bilayer in cell membranes, and it also plays a role in cell signaling and apoptosis.

For more such questions on Phosphatidylserine

https://brainly.com/question/16179573

#SPJ8

Answer: B

Explanation: Formaldehyde molecules do not form an extended structure and can freely move past each other

Answer:

Explanation:

100

m

L

H

+

 is required for complete neutralization.

Assuming, somehow, only

H

+

are in the buret and only

O

H

−

...

The claim that "GEE washing machine is more durable than Warp-pool and Sam's Sung washing machines" is based on the experimental data gathered from the test. The data shows that the GEE washing machine was able to run for a longer period of time before breaking down, compared to the Warp-pool and Sam's Sung washing machines. With only 1 month, 2 hours, and 32 minutes of running time, GEE washing machine outlived the other two brands, which were able to run for 10 days, 5 hours, and 3 minutes and 2 months, 13 hours, and 52 minutes respectively. This indicates that the GEE washing machine is more durable and can withstand more wear and tear compared to the other two brands.

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

More on heat of vaporization can be found here: https://brainly.com/question/12625048

#SPJ1

The percent ionic character of a molecule can be calculated using the following equation:

Percent Ionic Character = 100 × (μ/r)^2

Where μ is the dipole moment in Debye and r is the bond length in picometers.

Plugging in the given values, we get:

Percent Ionic Character = 100 × (1.39/121)^2

Percent Ionic Character = 100 × (0.0115)^2

Percent Ionic Character = 1.32%

What is dipole moment?

The dipole moment is a measure of the separation of positive and negative charges in a molecule. It is represented by the vector sum of the individual bond dipole moments and is measured in debyes (D).

To learn more about dipole moment

Here: https://brainly.com/question/11626115

#SPJ1

\(\\ \sf\longmapsto 9.63\times 10^{-2}m=9.63\times 10^{-2}\times 10^{-9}m=0.0963\times 10^{-9}m=0.0963nm\)

\(\\ \sf\longmapsto 6.02\times 10^3ks=6.03\times 10^6s\)

\(\\ \sf\longmapsto 8.9\times 10^8\mu g=8.9\times 10^4cg\)

\(\\ \sf\longmapsto 4.12\times 10^{-4}Mg=4.12\times 10^{-1}g=0.412g\)

\(\\ \sf\longmapsto 7.33\times 10^{-2}Tl=7.33\times 10dL=73.3dL\)

\(\\ \sf\longmapsto 0.73kL=0.73(1000)L=730L\)

\(\\ \sf\longmapsto 5.93cm^3=0.00000593m^3\)

\(⇒9.63 \times {10}^{ - 2} m = 9.63 \times {10}^{ - 2} \times {10}^{9} = 9.63 \times {10}^{ 7} nm \\ \)

\(⇒6.02 \times {10}^{3} ks = 6.02 \times {10}^{3} \times {10}^{3} = 6.02 \times {10}^{6} s \\ \)

\(⇒8.9 \times {10}^{8} \mu g = 8.9 \times {10}^{8} \times {10}^{ - 4} = 8.9 \times {10}^{4}cg \\ \)

\(⇒4.12 \times {10}^{ - 4} mg = 4.12 \times {10}^{ - 4} \times {10}^{3} = 4.12 \times {10}^{ - 1}g \\ \)

\(⇒7.33 \times {10}^{ - 2} TL = 7.33 \times {10}^{ - 2} \times {10}^{13} = 7.33 \times {10}^{ 11} dL\\ \)

\(⇒0.73kL = 0.73 \times {10}^{3} = 730L\)

\(⇒5.93cm {}^{3} = 5.93 \times 10 {}^{6} = 5.93 \times 10 {}^{6}m {}^{3} \\ \)

\(⇒498.82cg = 498.82 \: \times 10 = 4988.2 \: cg \\ \)

The correct match is as follows:

Pressure and heat - Metamorphic rock

Cooling magma - The Intrusive igneous rock

Cooling lava - The Extrusive igneous rock

Erosion and Deposition - Sedimentary rock

This is because Metamorphic rocks are formed as a result of past existing rocks changing form. If the igneous and sedimentary rocks are exposed to high temperature and pressure, they then become metamorphic rocks.

Intrusive igneous rocks form when magma cools slowly. This process soon results in the formation of large-crystal like structures. Whereas, when exposed to the atmosphere lava cools rather quickly. This faster cooling process forms extrusive igneous rocks. The fast cooling lava creates smaller crystals and a smoother surface.

The sediments that are formed as a result of weathered rocks are usually deposited on the surface of Earth, or at the bottom of rivers and oceans. Over time, sediments collect and form layers over the most recent layer. This leads to the formation of sedimentary rocks.

To learn more about minerals and rocks click below,

https://brainly.com/question/15844293

#SPJ9

Answer:

I believe this is your answer, or wait I know this is your answer

Explanation:

The question is incomplete, the question is;

Which drawing best accounts for the polarity of methanol, CH3OH, and the bond polarities that make a major contribution to the overall molecular polarity?

A) drawing (1)                                  B) drawing (2)

D) drawing (4)                                  C) drawing (3)

Answer:

   B) drawing (2)

Explanation:

In Chemistry, the direction of dipole is shown from positive end to negative end.

The image that contains the options in the question asked has been attached.

We can see in image 2 that the oxygen atom was correctly designated as the negative end of the dipole while the carbon and hydrogen atoms were each designated as positive ends of the dipole in accordance with the magnitude of electronegativity difference between the two atoms. The net dipole moment is now taken in the direction shown in image 2. This is the correct answer.

Drawing 2 best accounts for the polarity of methanol, CH3OH. Therefore, the correct option is B.

A carbon atom (C) joins with three hydrogen atoms (H), a hydroxyl group (OH), and three other atoms to form methanol (CH3OH). An oxygen atom (O) is attached to a hydrogen atom to form a hydroxyl group. The three hydrogen atoms and hydroxyl groups are arranged in three dimensions, giving the molecular structure of methanol a tetrahedral form around the core carbon atom.

A polar covalent bond is formed between oxygen and hydrogen because the oxygen atom in the hydroxyl group is more electronegative than the carbon and hydrogen atoms. Due to the unequal sharing of electrons, oxygen has a partial negative charge (-) and hydrogen has a partial positive charge (+), resulting in this polarity.

So, the correct option is B.

Learn more about Methanol here:

https://brainly.com/question/18725375

#SPJ6

Your question is incomplete, most probably the complete question is:

Which drawing best accounts for the polarity of methanol, CH3OH, and the bond polarities that make a major contribution to the overall molecular polarity?

A) drawing (1)                                  B) drawing (2)

D) drawing (4)                                  C) drawing (3)

Answer:

\(t_{1/2}=4.51days\)

Explanation:

Hello.

In this case, since the kinetics of radioactive decay in terms of initial and final amounts, elapsed time and half-life is:

\(A=A_0\times2^{-t/t_{1/2}}\)

we can compute the half time as shown below:

\(2^{-t/t_{1/2}}=\frac{A}{A_0}\\\\-\frac{t}{t_{1/2}} ln(2)=ln(\frac{A}{A_0})\\\\t_{1/2}=-\frac{t\times ln(2)}{ln(\frac{A}{A_0})}\)

Plugging in the known amounts and elapsed time, we obtain:

\(t_{1/2}=-\frac{12.3\times ln(2)}{ln(\frac{18.1}{120})}\\\\t_{1/2}=4.51days\)

Best regards!

Answer:

63. What is the atomic number of tritium?

The atomic number of tritium is 1, as it is a isotope of hydrogen, which has an atomic number of 1.

64. How is tritium typically produced?

Tritium is typically produced through nuclear reactions, such as those in a nuclear reactor or during nuclear weapons testing. It can also be produced in small amounts through the interaction of cosmic rays with the Earth's atmosphere.

65. What are some of the applications of tritium?

Tritium has a number of applications, including as a radioactive tracer in medical imaging and research, and as a fuel for nuclear fusion reactions. It can also be used in self-powered lighting devices, such as exit signs and emergency lighting. Additionally, Tritium is used to produce the radioactive isotope Helium-3, which is used in nuclear magnetic resonance imaging (MRI) and in neutron detection.

To solve this problem, you need to first determine how many moles of AgNO3 are present in the 75 mL of 0.300 M AgNO3 solution. This can be done by using the concentration and volume of the solution to calculate the number of moles of AgNO3 present.

First, convert the volume of the solution from milliliters to liters by dividing by 1000. This gives a volume of 0.075 L.

Next, multiply the concentration of the solution (in molarity) by the volume of the solution to calculate the number of moles of AgNO3 present. This gives a total of 0.022 moles of AgNO3.

Since the reaction ratio between AgNO3 and CaI2 is 2:1, this means that for every 2 moles of AgNO3, 1 mole of CaI2 is needed to completely precipitate the Ag+ ions as AgI. Therefore, in this case, we need 0.011 moles of CaI2 to completely precipitate the Ag+ ions.

To convert the number of moles of CaI2 to grams, we need to know the molar mass of CaI2. The molar mass of CaI2 is approximately 233.9 g/mol, so 0.011 moles of CaI2 would be equal to approximately 2.6 grams.

Therefore, to completely precipitate the Ag+ ions as AgI from 75.0 mL of 0.300 M AgNO3 solution, you would need approximately 2.6 grams of CaI2.