1.6g of a compound were found to contain 0.64g of copper, 0.32g of sulfur and 0.64g of oxygen. Calculate it's empirical formula.

The isomer that cannot form an H-bonding interaction with another identical molecule, but can do so with a water molecule, is the primary amine isomer (C3H9N).

The primary amine isomer (C3H9N) has the following structure: H3C-CH2-CH2-NH2.This isomer cannot form H-bonding interactions with another identical molecule because it lacks a hydrogen atom bonded to the nitrogen atom. In order for H-bonding to occur between two molecules, there must be a hydrogen atom bonded to an electronegative atom (such as nitrogen, oxygen, or fluorine) and a lone pair of electrons on the electronegative atom.

In the case of the primary amine isomer, there is only one hydrogen atom bonded to the nitrogen atom, and it is already involved in forming an H-bond with a water molecule.However, the primary amine isomer can form an H-bonding interaction with a water molecule. The lone pair of electrons on the nitrogen atom can act as a hydrogen bond acceptor, while the hydrogen atom bonded to the nitrogen can act as a hydrogen bond donor. This interaction can occur between the lone pair of electrons on the oxygen atom of water and the hydrogen atom bonded to the nitrogen of the primary amine isomer.

In summary, the primary amine isomer (C3H9N) cannot form an H-bonding interaction with another identical molecule due to the lack of a hydrogen atom bonded to the nitrogen. However, it can form an H-bonding interaction with a water molecule.

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Answer:

The Answer is below :)

Explanation:

A variety of handheld and laboratoryinstruments is available for detectingand measuring radiation. ... Geiger Counter, with Geiger-Mueller (GM) Tube or Probe—A GM tube is a gas-filled device that, when a high voltage is applied, creates an electrical pulse when radiation interacts with the wall or gas in the tube.

Answer1234

Explanation:

The charge on the complex ion in Ca2[Fe(CN)6] is 4-. The central Fe atom has a charge of 2+, and each CN group has a charge of 1-.

Since there are six CN groups surrounding the Fe atom, the total negative charge is 6(-1) = -6. To balance the charges, the Ca2+ ion carries a charge of 2+. Therefore, the overall charge of the complex ion is 2+ - 6(-1) = 4-. In this complex, Fe(CN)6^4-, the iron atom has a +2 charge because it is in the +2 oxidation state. Each cyanide ion (CN-) has a -1 charge. Since there are six cyanide ions, the total negative charge is 6(-1) = -6. To neutralize the -6 charge, two calcium ions (Ca2+) with a +2 charge each are present. The +2 charge of each calcium ion compensates for the -6 charge of the six cyanide ions. Therefore, the complex ion Ca2[Fe(CN)6] has an overall charge of 4-.

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Answer:Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics.

Explanation:

Answer:

Explanation:

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. 

hope it helps!

The given reaction is already balanced, that is to say tha the number of atoms in the reactants matches the number of atoms in the products. In the reaction, we can see the relationship between CaC2 and H2O. For each mole of CaC2 two moles of H2O react.

So, if 4.8 moles of CaC2 are consumed the moles of H2O needed will be:

Mol of H2O = Mol of CaC2 x 2

Mol of H2O = 4.8 x 2 = 9.6 mol of H2O

Now, to calculate the grams of H2O we will use the following equation and the mass molar of H2O.

Mass molar of H2O =18.01 g/mol

So, if 4.8 moles of CaC2 are consumed in this reaction, 172.9 g of H2O are needed

4 moles of Fe react with 3 moles of oxygen. Therefore, the mole ratio of iron to iron oxide in this process is 4:2.

The chemical element with the atomic number 8 and symbol O is called oxygen. It belongs to the periodic table's halogen group, is a very reactive nonmetal, and an oxidizing agent that easily produces oxides with most elements as well as other compounds.

The non-metallic element oxygen occurs naturally as a molecule. Two oxygen atoms that are tightly bound together make up each molecule. Oxygen is in a gaseous form at ambient temperature due to its low melting and boiling temperatures.

According to scientists, the oceans produce between 50 and 80 percent of the oxygen used on Earth. Oceanic plankton, which includes floating plants, algae, and certain bacteria that can photosynthesize, is the main source of this production.

Thus, 4 moles of Fe react with 3 moles of oxygen.

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Using all the applicable facts of solids, liquids and gases.The correct otion is (d) none of the above.

A solid has a fixed volume and a fixed shape: True

Solid molecules are closely clustered together. Despite still being able to vibrate, molecules cannot migrate from one area of the solid to another.

A liquid has an identifiable volume but no identifiable shape: True

It adopts the form of the container in which it is stored.                

A gas lacks both a fixed volume and a fixed shape: True

Compared to the molecules in a solid or a liquid, the molecules in a gas are quite widely apart.

While gases are not compressible, both solids and liquids are: True

There is hardly any open space between the particles in solids and liquids. This makes them incompressible. Large intermolecular gaps separate the particles in gases.

The complete question is: Which among the following statements is FALSE? A solid has a definite shape and a definite volume. A liquid has a definite volume; but it has no definite shape. A gas has neither definite volume nor definite shape. Both solids and liquids are incompressible while gases are compressible. none of the above

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To determine the amount of nitrogen dioxide (NO2) produced when lead (II) nitrate (Pb(NO3)2) decomposes and produces 0.0788 grams of oxygen gas (O2), we need to consider the balanced chemical equation for the decomposition reaction.

The balanced chemical equation for the decomposition of lead (II) nitrate is:

2Pb(NO3)2(s) → 2PbO(s) + 4NO2(g) + O2(g)

From the balanced equation, we can see that for every 2 moles of lead (II) nitrate decomposed, we get 4 moles of nitrogen dioxide (NO2) gas produced.

To calculate the amount of nitrogen dioxide (NO2) produced, we need to determine the number of moles of oxygen gas (O2) produced.

First, we need to calculate the molar mass of oxygen gas (O2), which is 32.00 grams/mol (16.00 g/mol for each oxygen atom).

Now, we can calculate the number of moles of oxygen gas (O2) produced:

Moles of O2 = Mass of O2 / Molar mass of O2

Moles of O2 = 0.0788 g / 32.00 g/mol ≈ 0.0024625 mol

Since the balanced equation shows that for every 2 moles of lead (II) nitrate decomposed, we get 4 moles of nitrogen dioxide (NO2) gas, we can use the mole ratio to determine the number of moles of nitrogen dioxide (NO2) produced:

Moles of NO2 = Moles of O2 × (4 moles NO2 / 2 moles O2)

Moles of NO2 = 0.0024625 mol × (4/2) ≈ 0.004925 mol

Therefore, approximately 0.004925 moles of nitrogen dioxide (NO2) are produced when 0.0788 grams of oxygen gas (O2) is generated through the decomposition of lead (II) nitrate.\(\)

The model of atoms undergoing nuclear fission will decrease in size while that of atoms undergoing nuclear fusion will increase in size.

Radioactive decay is a process in radioactivity in which the nucleus of atoms spontaneously breakdown or decay to produce smaller atomic nucleus with the emission of radiation.

Nuclear fusion involves the merging together of the nucleus of two or more smaller atoms to produce a larger atom whereas nuclear fission is the splitting of the nucleus of larger atoms into smaller atomic nuclei.

Therefore, the model of atoms undergoing nuclear fission will decrease in size while that of atoms undergoing nuclear fusion will increase in size.

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Answer:

This is for the table

Explanation:

Sorry for my handwriting

Answer:

The correct answers are C and D.

To solve this we must be knowing each and every concept related to moles. Therefore, 0.11moles of oxygen were burned and 0.222 moles of water were formed.

A mole is merely a measuring unit. In reality, it is among the International System on Units' seven foundation units (SI). When basically determines are insufficient, new units are created.

Chemical reactions frequently occur at levels that use grams would be inappropriate, but using actual figures of atoms/molecules/ions would also be misleading. As a result, scientists devised the mole for bridge the divide between extremely small and extremely huge numbers.

2H\(_2\) + O\(_2\) \(\rightarrow\)  2H\(_2\)O

The mole ratio between hydrogen gas and oxygen gas is 2:1

moles of hydrogen gas = 0.222 moles

moles of oxygen gas =0.11moles

moles of water formed = 0.222 moles

Therefore, 0.11moles  of oxygen were burned and 0.222 moles of water were formed.

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Answer: False

Explanation: Gaining an electron which has a negative charge results in an overall negative charge, thus making this an anion, and the answer, false.

Answer:false

Explanation:it becomes a anion

Neil Bohr used the fluorescent screen and an alpha particle detector to study the structure of an atom.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

The atom as a whole is neutral and stable due to presence of oppositely charged particles.

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Answer:

The tectonic plates do not slowly drift over time because they are floating on a layer of liquid rock. They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.

Explanation:

If the pH of the cell is increased by adding NaOH to the beaker containing chromium solution, the value of E, the standard electrode potential, would likely increase.

This is because an increase in pH typically results in a decrease in the concentration of hydrogen ions (H+) in the solution, which in turn affects the reduction potential of the half-cell reaction. As the concentration of H+ decreases, the reduction potential becomes more positive, leading to an increase in E.

However, it's important to note that the specific effect on E will depend on the details of the reaction and the concentrations of the various species involved.

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Answer:

C

Explanation:

Brainliest

I tried my best

No, only water. Everything has a different b.p & m.p so you can't rlly say all liquids will turn to gas in 100°C. But water does.

Hope it helps :))))

Answer:

Phosphorous.

Explanation:

In 1649 Hennig Brand discovered phosphorous.

Answer:

The B. Is perfect match of a definition of chemical property.

Explanation:

The ability of gunpowder to explode.

The ability of gunpowder to explode is the best definition of a chemical property.

The change of one type of matter into another type of matter and inability to change into the previous forms is called a chemical property. Examples of chemical properties include reactivity and heat of combustion.

So we can conclude that the ability of gunpowder to explode is the best definition of a chemical property.

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Answer:

They want to escape from the fury of a hurricane.

Explanation:

Your welcomeeeeeeeeeeeee

Answer:

They want to escape from the fury of the hurricane

Explanation:

None of the other choices made sense. They are packing to leave.

Have a splendid day!

Free energy change for transporting Ca2+ ions is calculated as follows:∆G = RT ln ([Ca2+]outside/[Ca2+]inside)∆G = 8.315 J/mol.K x 310 K x ln (25 mM/145 mM) = -15,400 J/mol.

Here, ∆G is negative, which implies that Ca2+ ions transport spontaneously from the cell to blood. This is because the free energy of the system decreases when Ca2+ ions move from high concentration to low concentration. Therefore, transporting Ca2+ ions is energetically favorable.

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\(\\ \tt\longmapsto Density=\dfrac{Mass}{Volume}\)

\(\\ \tt\longmapsto Density=\dfrac{1055}{93.4}\)

\(\\ \tt\longmapsto Density=11.29g/cm^3\)

The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition. The density of a chunk of lead that has a mass of 1055 grams is  11.29 g/cm³.

The density of a substance indicates how dense it is in a given area. Mass per unit volume is the definition of a material's density. In essence, density is a measurement of how closely stuff is packed. It is a particular physical characteristic of a specific thing.

The expression used to calculate density is:

Density = Mass / Volume

mass = 1055 g

volume = 93.4 cm³

Density = 1055 / 93.4

Density = 11.29 g/cm³

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the empirical chemical formula of X is CH4

Explanation:Step 1: Imagine you have a sample of compound weighing exactly . Multiply the mass of this sample by the mass percents to find the mass of each element in the sample

Step 2: Divide the mass of each element by the element's molar mass to find the moles of each element in the sample. Remember to round your answers to the correct number of significant digits.  

Step 3: Divide the moles of each element by the the smallest number of moles of any element to find the mole ratio of elements in the sample.  

Step 4: Multiply the mole ratio by the smallest whole number that changes it into a whole number ratio to find the atom ratio of elements in the sample.

Note that the result of each multiplication must equal a whole number only within measurement uncertainty.  

The measurement uncertainty in this calculation comes from the measurement uncertainty of the mass percents given in the question. The mass percents each have significant digits. That means each mass percent has some measurement uncertainty in the third significant digit, and only the first two significant digits can be considered completely reliable.  

In Step 1 you multiplied each mass percent by something with zero uncertainty (the exactly you assumed your sample weighed), in Step 2 you divided by a measurement with more than significant digits (the molar mass of the elements), and in Step 3 you divided by a measurement with the same number of significant digits (the least number of moles of any element in the compound). None of these steps added to the measurement uncertainty of your calculation.  

Therefore, the measurement uncertainty in the final result of all your calculations is determined by the measurement uncertainty in the original mass percents and will be in the third significant digit. That means the result of each of the final multiplication steps must equal a whole number only to within the first two significant digits.  

The whole numbers in the last column of the table are and .  

Answer:

90 kilojoules of heat energy

Explanation:

I don't really know why this is just the answer to it on my quiz so if someone else can explain.

These are just a few examples of energy transformations associated with different processes. Energy transformations occur in various forms throughout nature and technology, and understanding them is crucial for studying energy systems and their impacts on the environment and society.

Here are some common energy transformations and their associated processes:

Combustion:

Process: Burning of fossil fuels such as coal, oil, or natural gas.

Energy Transformation: Chemical energy in the fuel is converted into thermal energy (heat) and light energy.

Photosynthesis:

Process: Occurs in plants, where they convert sunlight, carbon dioxide, and water into glucose (chemical energy) and oxygen.

Energy Transformation: chemical energy is transformed into chemical energy stored in glucose.

Cellular Respiration:

Process: Takes place in cells, breaking down glucose and other organic molecules to release energy.

Energy Transformation: Chemical energy stored in glucose is converted into ATP (adenosine triphosphate), which is a form of usable energy for cells.

Electric Power Generation:

Process: Power plants use various methods (such as coal, nuclear reactions, or renewable sources like wind or hydro) to generate electricity.

Energy Transformation: The energy source (e.g., fossil fuels, nuclear reactions, or renewable sources) is converted into electrical energy.

Solar Panels:

Process: Solar panels capture sunlight using photovoltaic cells and convert it into electricity.

Energy Transformation: Solar energy is transformed into electrical energy.

Nuclear Fission:

Process: In nuclear power plants, the process of splitting atoms (fission) is used to release a tremendous amount of energy.

Energy Transformation: Nuclear potential energy is converted into thermal energy, which is then used to generate electricity.

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Answer:

a beam of electrons emitted from the cathode of a high-vacuum tube.

Explanation:

Cathode rays (also known as electron beam or e-beam) are electron waves that can be used in vacuum tubes.

Answer:

Basing on explanations below;

1. Endothermic reactions have a positive enthalpy while Exothermic reactions have a negative enthalpy.

2. Endothermic reactions take place in high temperatures while Exothermic reactions take place in low temperatures.

Answer:

6 min 40 sec

Explanation:

Hope this helps you :)

The difference between the arrival time of the first P-wave and the arrival time of the first S-wave recorded at the station will be 6 minutes 40 seconds.

P waves move the fastest and arrive first from the earthquake. Rock oscillates perpendicular to the direction of wave propagation in S or shear waves.

In rock, S waves move at approximately 60% the speed of P waves, and the S wave always comes after the P wave. Sound waves, for example, are P waves with a high enough frequency to be heard with your ear.

Wiggling or shaking a rope that is tied down at one or both ends is an example of a S wave.

Both P and S waves propagate outward from an earthquake focal point within the ground.

The waves are frequently observed as independent arrivals on seismographs located at great distances from the earthquake. The direct P wave arrives first because its course takes it through faster moving, denser rocks deeper in the ground.

Because they pass through deeper, lower velocity rocks, the PP (one bounce) and PPP (two bounces) waves move more slowly than the straight P. After the P waves, the various S waves arrive.

To conclude with we can say that Seismic waves or body waves are elastic waves created when the earth's crust is disturbed. The wave is classified into two types  body waves and surface waves. The P and S - waves that move through the ground are body waves.

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