What is a gas in the atmosphere that blocks high amount of infrared light?
What are these types of gases called?

This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97. The incorrect representation for a neutral atom is 36Li

To determine the correct representation for a neutral atom, we need to consider the atomic number (Z) and mass number (A) of the element. The atomic number represents the number of protons in the nucleus, while the mass number represents the sum of protons and neutrons.

Let's analyze the given representations:

36Li:

This representation suggests that the element is lithium (Li) with a mass number of 36, which is incorrect. The correct mass number for lithium is approximately 6.94.

613C:

This representation suggests that the element is carbon (C) with a mass number of 13, which is correct. Carbon has different isotopes, and 13C represents one of its stable isotopes.

3063Cu:

This representation suggests that the element is copper (Cu) with a mass number of 63, which is correct. Copper has different isotopes, and 63Cu represents one of its stable isotopes.

1530P:

This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97.

Therefore, the incorrect representation for a neutral atom is 36Li, as it does not match the known properties of lithium.

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Grams of BW

i think thats irtu9rgirg

Independent variable in an investigation is the variable is does not depends on any other variable and on which we can have the control. Hence, the grams of BW is the independent variable here.

In an experiment the parameters which changes by control or depending on other changes are called variables. There are two kinds variables namely dependant and independent variables.

The dependant variables are those variable which depends upon other variables and whose changes are studying with respect to certain parameters.

Independent variables does not depends on other variable and can be controlled by the researcher. Here, we are studying the % of developing cold with respect to the amounts of BW. The changing variable is BW amount on which the percentage of cold depends.

Therefore, the independent variable is grams of BW and dependant variable is % development of cold.

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Answer:

This is not chemistry this is physics

Because oil lacks a charge and is not drawn to the polar water molecules, it is a nonpolar material.

The more prevalent soluble contaminants are organic matter, sodium chloride, sodium sulphate, sodium carbonate, magnesium chloride, calcium chloride, calcium sulphate, and calcium bicarbonate. Sand, clay, and organic materials are some common examples of insoluble impurities.

Solids that may create a solution when combined with the appropriate liquid are said to be soluble (or soluable) solids. Because of this, the soluble substances in the liquid (such as water, oil, kerosene, etc.) dissolve. such as sugar and water or salt and water. Solids that do not dissolve in water are known as insoluble solids.

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Answer:

Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Answer: Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Answer:

Explanation:  check my paage

Answer:

Theoretical yield: 16.68g Limiting reactant: Ti  %yield=97.12%

Explanation:

Balanced reaction : Ti(s) +2 Cl2 (g) -> TiCl4(s)

g of substance = # of mole x molar mass

# of mole= g of substance/molar mass

%yield= actual yield x100/ theoretical yield

Ti is limiting reactant since it has the smallest amount of moles- 0.08795 causing it to run out first

the bond angle is 90° since it's a tetrahedral shape.

Each oxygen (O) atom has 6 valence electrons, and sulfur (S) also has 6 valence electrons.

The sulfate ion has four oxygen atoms, so we multiply that number by those atoms' valence electrons to get the following result: 24 valence electrons (4 x 6). When we add the sulfur valence electrons (six) to the total number of oxygen valence electrons (24), we get a total of 30 valence electrons.

We count the number of electron domains (bonding pairs and lone pairs) surrounding the primary atom to establish the electron-domain geometry. In this example, the lead atom is sulfur (S). There is no single pair; Instead, there are four bond pairs (two SO double bonds and two SO single bonds). As a result, the shape of the electron domains is tetrahedral.

The positions of the atoms, not their lone pairs, are used to establish molecular size. The molecular geometry of sulfate ion is also tetrahedral. By counting the number of electron domains, it is possible to establish the degree of hybridization of the primary atom (sulfur, S). Sulfur is surrounded by a four electron domain, so the hybridization is \(sp^3\). When it comes to bond angles, the S-O bonds of sulfate ion are separated by about 109.5 degrees.

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Answer:

0.515 M

Explanation:

The reaction that takes place is:

First we convert 1.22 g of malonic acid into moles, using its molar mass:

Then we convert 0.01172 malonic acid moles into NaOH moles, using the stoichiometric coefficients of the balanced reaction:

Finally we calculate the concentration of the NaOH solution, using the number of moles and given volume:

Converting 45.5 mL ⇒ 45.5/1000 = 0.0455 L

Some of the essential features of computers:

1. Processing Power

2. Storage Capacity

3. Memory

4. Input and Output

5. Connectivity

6. Software

7. Multitasking

8. Scalability

9. Reliability and Durability

10. User Interface

Computers are complex machines that have become an integral part of our daily lives. They possess several key features that enable them to perform a wide range of tasks efficiently. Here are some of the essential features of computers:

1. Processing Power: Computers are capable of executing complex calculations and tasks at incredible speed. They contain powerful processors that can perform billions of operations per second, enabling them to handle various applications and processes.

2. Storage Capacity: Computers have the ability to store and retrieve vast amounts of data. They come equipped with different types of storage devices such as hard drives, solid-state drives (SSDs), and cloud storage, providing ample space for storing files, programs, and operating systems.

3. Memory: Computers have two primary types of memory: RAM (Random Access Memory) and ROM (Read-Only Memory). RAM provides temporary storage for data and instructions that the computer is actively using, while ROM contains firmware and permanent instructions that are essential for booting up the computer.

4. Input and Output: Computers allow users to interact with them through various input and output devices. Input devices include keyboards, mice, touchscreens, and microphones, while output devices include monitors, printers, speakers, and headphones. These devices enable users to input commands and receive feedback from the computer.

5. Connectivity: Computers can connect to networks and other devices, enabling communication and data transfer. They have built-in network adapters and support for various connectivity options such as Ethernet, Wi-Fi, Bluetooth, and USB, allowing users to access the internet, share files, and connect to peripherals.

6. Software: Computers run on software, including operating systems, applications, and utilities. The software provides the instructions and programs that allow users to perform tasks, manipulate data, and manage hardware resources.

7. Multitasking: Computers are designed to handle multiple tasks simultaneously. They can execute multiple programs concurrently, switch between tasks rapidly, and allocate system resources efficiently, providing users with the ability to multitask and enhance productivity.

8. Scalability: Computers offer scalability, allowing users to upgrade hardware components and expand storage capacity as needed. This feature ensures that computers can adapt to evolving technological demands and accommodate future growth.

9. Reliability and Durability: Computers are designed to be reliable and durable. They undergo rigorous testing and are built with high-quality components to ensure stable performance and withstand daily use.

10. User Interface: Computers provide graphical user interfaces (GUIs) that enable users to interact with the system easily. GUIs utilize visual elements such as icons, windows, and menus, making it intuitive for users to navigate and access various functions.

These features collectively make computers versatile, powerful, and indispensable tools in our modern world, enabling us to accomplish a wide range of tasks efficiently and effectively.

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Answer:

40 Grams

Explanation:

Fe2O3 is 2 parts Iron 3 parts Oxygen.

Assuming the molecular weights of both are equivalent (ideal elemental law), it is a 2:3 ratio, or 2/5 of the total.

2/5 of 100 is 40, so the answer is

40 grams

Answer:

Explanation:

As a result, the reaction of propane (C H) 3 8 and oxygen should produce carbon dioxide, water, and heat as products, and the balanced chemical equation will be: C H3 8 + 5O2 3CO2 + 4H O2 + heat. Reactants have the next highest potential power level when compared to materials.

Answer:

water and carbon dioxide

Explanation:

Propane undergoes combustion reactions in a similar fashion to other alkanes. In the presence of excess oxygen, propane burns to form water and carbon dioxide.

I hope this helps!

Answer:

Actual yield is 38.57

Explanation:

Percentage yield = Actual yield / theoretical yield X 100

Percent yield x theoretical yield / 100 = actual yield

Write the balanced chemical equation:

2Na + CI2 = 2NaCI

Given is 17.25 g Sodium metal (limiting reactant) with excess being chlorine gas

Percent yield is 88%

Mole of Na = 17.25 g / 22.98 = 0.750

Calculate the Theoretical Yield to solve for Actual Yield

Theoretical yield = 0.75 x molar mass of NaCI

Theoretical yield = 0.75 x 58.44 = 43.83 g

When plugged into the original percentage yield formula:

Actual yield = 88 x 43.83 / 100 = 38.57 g

Answer:

Preventing erosion – Land Reclamation

Protecting nesting areas – Protecting Biodiversity

Preventing littering – Land Reclamation

Preventing habitat disruption – Protecting Biodiversity

Protecting native species – Protecting Biodiversity

Preventing contamination of soil – Land Reclamation

Explanation:

I really hope I'm right! I tried my hardest, please give me brainliest :)

have a good day!

The percent yield of the reaction is 45.44%

Percentage yield is basically,

 \(\rm Percent\ yield\ = \frac{actual\ yield}{theoretical\ yield} \times 100\)

2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O

To calculate the theoretical yield, consider the stoichiometry of the reaction.

2 moles of NaOH reacts with 1 mole of H₂SO₄ to give 1 mole of Na₂SO₄ and 2 moles of H₂O. The mole ratio of H₂SO₄ and Na₂SO₄ is 1:1

For this mole ratio to be useful, convert the given concentration of H₂SO₄ into moles.  

     \(\rm Molarity\ =\ \frac{No.\ of\ moles}{Volume\ of\ solution (L)}\)

            \(\rm 3.10\ =\ \frac{No.\ of\ moles}{0.125}\)

\(\rm No.\ of\ moles\ =\ 3.10 \times 0.125\\)

                     \(=\ 0.38\)

Since, mole ratio of H₂SO₄ and Na₂SO₄ is 1:1

Amount of Na₂SO₄ formed would be also 0.38 mol

Convert this amount in moles to amount in grams

\(\rm No.\ of\ moles\ =\ \frac{Mass\ formed\ }{Molecular\ mass}\)

\(\rm Mass\ formed\ =\ No.\ of\ moles\times molecular\ mass\)

                     \(\rm =\ 0.38\times 142.04\)

                     \(\rm =\ 53.97\ grams\)

Theorical yield of Na₂SO₄ is 53.97 grams

Therefore,   \(\rm Percent\ yield\ = \frac{actual\ yield}{theoretical\ yield} \times 100\)

                                          \(\rm =\ \frac{24.5}{53.97}\times 100\)

                                          =  45.44%

The percent yield of the reaction is 45.44%

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The maximum mass of sodium bromide that could be produced by the chemical reaction is 38.59 g.

The balanced chemical equation for the reaction between hydrobromic acid and sodium hydroxide is:

HBr (aq) + NaOH (s) → NaBr (aq) + H2O (l)

To determine the maximum mass of sodium bromide that could be produced, we need to first identify the limiting reactant. We can do this by calculating the number of moles of each reactant using their molar masses:

Molar mass of HBr = 80.91 g/mol

Molar mass of NaOH = 40.00 g/mol

Number of moles of HBr = 55.8 g ÷ 80.91 g/mol = 0.689 mol

Number of moles of NaOH = 15.0 g ÷ 40.00 g/mol = 0.375 mol

The stoichiometry of the balanced chemical equation tells us that one mole of HBr reacts with one mole of NaOH to produce one mole of NaBr. Therefore, the limiting reactant is NaOH, since it produces fewer moles of product (NaBr) than HBr.

The number of moles of NaBr produced from the reaction is equal to the number of moles of NaOH used, which is 0.375 mol.

Finally, we can calculate the maximum mass of NaBr that could be produced using its molar mass:

Molar mass of NaBr = 102.89 g/mol

Mass of NaBr = number of moles of NaBr × molar mass of NaBr

Mass of NaBr = 0.375 mol × 102.89 g/mol = 38.59 g

Therefore, the maximum mass of sodium bromide that could be produced by the chemical reaction is 38.59 g.

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Answer:

yes any physical substance is matter, solid liquid and gas and a telephone is a solid

Explanation:

Answer:

The amount of energy available at each energy level decreases

Answer: 1.95 g of oxygen is present.

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

\(p_{total}=p_{methane}+p_{oxygen}\)

Given : \(p_{total}\) =total pressure of gases = 727 mm Hg

\(p_{methane}\) = partial pressure of methane = 571 mm Hg

\(p_{oxygen}\) = partial pressure of oxygen = ?

\(727=571+p_{oxygen}\)  

\(p_{oxygen}=156mmHg\)

Also \(p_{oxygen}=x_{oxygen}\times p_{total}\)

Given : 3.62 g of methane is present

moles of methane = \(\frac{\text{Given mass}}{\text {Molar mass}}=\frac{3.62g}{16g/mol}=0.226moles\)

\(x_{oxygen}\) = mole fraction of oxygen  

=\(\frac{\text {moles of oxygen}}{\text {total moles}}=\frac{y}{y+0.226}\)

\(156=\frac{y}{y+0.226}\times 727\)

\(y=0.061\)

mass of oxygen = \(moles\times {\text {Molar mass}}=0.061\times 32=1.95g\)

Thus 1.95 g of oxygen is present.

The measure of the randomness or disorder of a chemical system is entropy.

Answer:

For you first question about the defined function program:

if ( v ≤ 250 ) {

   set p to (5 + v*.02)

}

elseif ( 250 ≤ v ≤ 800 ) {

   set p to (5 + 2500 + (v - 250)*.02)

}

else {

   set p to (5 + 28000 + (v - 800)*.1)

}

This function will first check if the user has used how many units and decide which category that user falls into.

Then, it uses that information to execute a command to calculate how much money that user should pay for the electricity bill, factoring in the extra demands from the question.

For your second question:

(5 + 2500 + (700 - 250)*.02)

= (3000 + 450*.02)

= (3000 + 9)

= 3009

The customer should have paid 3009 dollars.

Explanation:

Hope this helped!

1. The IUPAC name of N is nitrogen.

2. Nitrogen dioxide

3.The IUPAC name of O is oxygen

4.The IUPAC name of OH is hydroxyl.

The IUPAC name of ·0 is a radical. It is commonly found in organic chemistry and plays an important role in many reactions.

IUPAC names for the given compounds are:1.1. N: Nitrogen

The IUPAC name of N is nitrogen.

It is a non-metal and belongs to group 15 in the periodic table. It has an electronic configuration of 1s2 2s2 2p3.1.2. NO2: Nitrogen dioxide

Explanation: NO2 is a chemical compound that is formed by the combination of nitrogen and oxygen. It is a reddish-brown gas that has a pungent odor.

The IUPAC name of NO2 is nitrogen dioxide.1.3. O: Oxygen

Explanation: The IUPAC name of O is oxygen.

It is a non-metal and belongs to group 16 in the periodic table. It has an electronic configuration of 1s2 2s2 2p4.

X: UnknownExplanation: No IUPAC name can be given to an unknown compound as the structure and composition are not known.

Y: Hydroxyl Explanation: The IUPAC name of OH is hydroxyl.

It is a functional group that is composed of an oxygen atom and a hydrogen atom (-OH). It is commonly found in alcohols and phenols. ·0: RadicalExplanation: A radical is a molecule or an ion that contains an unpaired electron.

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Note: The complete question is given below

Provide the IUPAC names for the following compounds:

\(CH_3CH_2CH(CH_3)CH_2CH_2CH_2CH_3\)

C6H5CH(CH3)2

H2NCH2CH2CH2CH2CH2NH2

CH3CH2CH2CH2CH2OH

CH3CH2CH2CHOHCH3

Answer:

\(Density = 2.7 \ g/cm^3\)

Explanation:

The equation for density is:

\(Density = \frac{mass}{volume}\)

We can plug the given values into the equation:

\(Density = \frac{81\ g}{30.0\ cm^2}\)

\(Density = 2.7 \ g/cm^3\)

We can neglect change in X, so

Now the equilibrum of hypobromous acid (smaller Ka)

We can neglect change in X, so

Solve for x

X is very small, order of magnitude -8. Then it can be neglected

So [H3O+] = 0.002 M pH= -log(0.002) = 2.70

Answer:

How do amoeba respire.

Define Diffusion.

Answer:

Energy cannot be destroyed or created.

C. i know this is right

Explanation:

Answer:

shale and siltstone

Explanation:

The Triceratops dinosaur fossils are approximately 70 million years old, because they are found in shale and siltstone that contain volcanic ash radiometrically dated at 70 million years.

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, in shale and siltstone, Scientists would most commonly find a fossil of triceratops.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.

So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter.

Scientists would most commonly find a fossil of triceratops in shale and siltstone that contain volcanic ash radiometrically dated at 70 million years.

Therefore, in shale and siltstone, Scientists would most commonly find a fossil of triceratops.

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Answer:

This might be simply as matter of convenience. It is now well known that different molecules have one of several smells. The sensation of smell is produced when the odor-causing molecule binds to certain sites (called receptors) high up in the nose.