What is the correct IUPAC name for CuNO₃?

Answer:

The molecules are held closely together in a regular pattern called a lattice. If the ice is heated, the energy of the molecules increases. ... This is why liquid water is able to flow: the molecules have greater freedom to move than they had in the solid lattice.

Explanation:

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Circle b represents the solution after 300 mL of solvent has been added.

Volume percent = {Volume of solute / volume of solution} x 100

After adding the solution, the volume of solution increases but volume of solute remains the same. For same volume of solute, the volume percent is high for once which has the volume of solution is low.

In 100 mL the visually represented solution has 12 balls for solute. When 300 mL of solution is added to the solute, the total volume is 400 mL volume is increased 4 times. Then 12/4 = 3 is the number of solute present in the circle. Circle b represents the solution.

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Longitudinal waves move up and down. The give statement is true. Wave that travels in the exact same direction as a periodic disruption or vibration is referred to be a longitudinal wave.

Wave that travels in the exact same direction as a periodic disruption or vibration is referred to be a longitudinal wave. A point on every coil of the spring would then move with the wave as well as come back along the same path, trying to pass through into the neutral position but then just reversing its motion once more.

A coiled spring that's also condensed at one end and afterwards published sensory perceptions a wave of compression which travels its length followed by a stretching. In addition to compressing and rarefying the gas inside the direction of the sound wave's path, sound waves traveling through air also cause them to vibrate back and forward between.

Therefore, the give statement is true.

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Plasma exists at  extremely high temperatures or low pressures, atoms lose their electrons and ionize, creating a gas-like combination of positively charged ions and negatively charged electrons.

Over 15 million degrees Celsius are present at the Sun's core, which is hot enough to remove the electrons from hydrogen atoms and produce a plasma of protons and electrons.

The plasma cannot grow outward due to the intense pressure at the core of the Sun, which keeps it trapped within its gravitational field. The sun's core material can exist as plasma due to the extreme pressure and temperature there.

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Answer:

\( V_{p} = 15 V \)

Explanation:

Given the following data;

Number of loops in primary coil, Np = 1 loop.

Number of loops in secondary coil, Ns = 8 loops

Voltage in secondary coil, Vs = 120V

To find the voltage in the primary coil, Vp;

Transformer ratio is given by the formula;

\( \frac{V_{p}}{V_{s}} = \frac{N_{p}}{N_{s}}\)

Making Vp the subject of formula;

\( V_{p} = \frac{N_{p}}{N_{s}} * V_{s} \)

Substituting into the equation, we have;

\( V_{p} = \frac{1}{8} * 120 \)

\( V_{p} = \frac{120}{8} \)

\( V_{p} = 15 V \)

Therefore, the voltage in the primary coil, Vp is 15 Volts.

Answer:

a synthesis reaction occured when the liquids were mixed

When you raise and push down the pressure pump handle, you are adding more gas molecules to the container.

When you click on the bucket to raise the temperature of the container, the pressure of the gas increases.

When you click on the bucket to reduce the temperature of the container, the pressure of the gas decreases.

The gas law that mathematically shows the relationship between temperature and pressure is known as the ideal gas law. The ideal gas law is represented by the equation: PV = nRT

where:

P is the pressure of the gas,

V is the volume of the gas,

n is the number of moles of the gas,

R is the ideal gas constant, and

T is the temperature of the gas in Kelvin.

According to the ideal gas law, when the volume is kept constant (as mentioned in the simulation), the relationship between temperature and pressure is directly proportional. This means that if the temperature increases, the pressure will also increase, and if the temperature decreases, the pressure will decrease.

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Answer:Click on the bucket to raise the temperature of the container to approximately 400 K (127°C). What happened to the pressure?

✔ increased

Approximately what pressure range did you observe?

✔ 7.5–8.3 atm

3. Click on the bucket to reduce the temperature to approximately 200 K (−73°C). What happened to the pressure?

✔ decreased

Approximately what pressure did you observe?

✔ 3.5–4.3 atm

4. What gas law mathematically shows the relationships between temperature and pressure?

✔ Gay-Lussac’s law

Explanation:

Answer:

The answer is the layer of the sun that radiates energy outwards from the sun core

Explanation:

the reason why that is becuase the convection zone is a layers which is unstable to convection. And energy is primarily or partially transported by convection

Answer:

D

Explanation:

To maintain an H2 concentration of 0.42 M, a pressure of approximately 518.52 atm of hydrogen is needed.

The Henry's Law constant relates the concentration of a gas in a liquid to the partial pressure of the gas above the liquid. In this case, the Henry's Law constant for H2 is given as 8.1 × 10^(-4) mol/(L·atm) at 25°C.

To determine the pressure of hydrogen needed to maintain an H2 concentration of 0.42 M, we can use Henry's Law equation:

C = k × P

Where:
C is the concentration of H2 in Molarity (M)
k is the Henry's Law constant (mol/(L·atm))
P is the partial pressure of H2 in atmospheres (atm)

Given:
C = 0.42 M
k = 8.1 × 10^(-4) mol/(L·atm)

Rearranging the equation, we have:

P = C / k

Substituting the given values:

P = 0.42 M / (8.1 × 10^(-4) mol/(L·atm))

Now, let's calculate the pressure:

P ≈ 518.52 atm

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Answer:

Which has the longest wavelength?

✔ microwaves

x infrared

x visible

x X-rays

Which has the highest frequency?

✔ X-rays

x infrared

x microwaves

x visible

Explanation:

I apologize if this was a late answer or if this doesn't answer your original question, but hope this helps! :)

Answer:

Microwaves then X rays

Explanation:

The 4-methyl pentane-2-ol (\(C_6H_{14}O\)) is an alcohol compound with a methyl group attached to the fourth carbon atom and a hydroxyl group attached to the second carbon atom in a five-carbon chain.

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The empirical formula, which represents the simplest ratio of atoms in a compound, may be useful in the lab setting but not useful for predicting the properties and functions of materials.

In the lab, the empirical formula can be useful for identifying the composition of a compound, especially if the molecular formula is unknown. It can also help in determining the stoichiometry of a reaction, which can be important for conducting experiments. However, the empirical formula does not provide information about the actual number of atoms or the arrangement of atoms within a molecule, which can greatly affect the properties and functions of a material.

Therefore, while the empirical formula can be a useful tool in the lab setting, it may not be sufficient for predicting the properties and functions of materials. More detailed information about the molecular formula and structure is needed for accurate predictions.

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Answer:

1) 9.4 mol

2) 0.6 mol

3) 0.9 mol

What is Stoichiometry?

In chemical equations, unless stated otherwise, the reactants and products will theoretically always remain in stoichiometric ratios.

The stoichiometry of a reaction is the relationship between the relative quantities of products and reactants, typically a ratio of whole integers.

Consider the following chemical reaction: aA + bB ⇒ cC + dD.

The stoichiometry of reactants to products in this reaction is the ratio of the coefficients of each species: a : b : c : d.

Converting between moles and mass:

To convert from mass to moles, divide the mass present by the molar mass, resulting in the number of moles. Mathematically, the units present themselves like this: \(\frac{g}{gmol^{-1}} =g(g^{-1}mol)=mol\).

Thence, the formula for moles: n = m/M, where n = number of moles, m = mass present, and M = molar mass. This formula can be easily rearranged to find mass present from molar mass and moles, or molar mass from mass and moles.

1) For the reaction C + 2H₂ → CH₄, how many moles of carbon are needed to make 150.6 g of methane, CH₄? (Molar Masses: H=1; C=12)

Stoichiometry of carbon to methane = 1 : 1.

Therefore, moles of CH₄ = moles of C. Using the formula to find moles, n(CH₄) = m/M = 150.6/(12+1×4) =9.4125 ≈ 9.4 mol

Therefore, we require 9.4 moles of carbon.

2) S + 6HNO₃ → H₂SO₄ + 6NO₂ + 2H₂O

In the above equation, how many moles of water can be made when 113 g of HNO₃ are consumed? (Molar Masses: H=1; N=14; S=32; O=16)

Stoichiometry of Nitric acid to water = 6 : 2 = 3 : 1. Therefore, we produce 1 mole of water for every 3 moles of nitric acid consumed. Hence,  n(HNO₃) = m/M = 113/(1+14+16×3) = 1.79365 mol

Therefore: n(H₂O) = 1/3 × n(HNO₃) = 0.59788 mol ≈ 0.6 mol

3) 3Cu + 8HNO₃ → 3Cu(NO₃)₂ + 2NO + 4H₂O

In the above equation, how many moles of water can be made when 117.8 grams of HNO3 are consumed?

Stoichiometry of Nitric acid to water = 8 : 4 = 2 : 1. Therefore, we produce 1 mole of water for every 2 moles of nitric acid consumed. Hence,  n(HNO₃) = m/M = 117.8/(1+14+16×3) = 1.86984 mol

Therefore: n(H₂O) = 1/2 × n(HNO₃) = 0.9349 mol ≈ 0.9 mol

Answer:

56

Explanation:

Melting points of enantiomers will not compare to each other as they have same M.P. and Diastereoisomers are compared on the basis of melting point.

Stereoisomers are those isomers which are having the same molecular formula but different spatial arrangemet of atoms within the molecule.

Hence, only diastereoisomers are compared on the basis of melting point.

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The claim that the atomic model should not be continually changed is based on the principle of scientific stability and coherence. Continually changing the atomic model can undermine the stability of scientific understanding and impede the development of robust theories.

The claim that the atomic model should not be continually changed is based on the principle of scientific stability and coherence. Continually changing the atomic model can undermine the stability of scientific understanding and impede the development of robust theories. The current atomic model, based on quantum mechanics and the understanding of subatomic particles, has provided a consistent framework that has successfully explained and predicted numerous phenomena. This model has undergone rigorous testing, verification, and refinement over the years. While scientific progress and new discoveries are essential, it is important to maintain a balance between incorporating new evidence and maintaining a stable foundation. Frequent changes to the atomic model can lead to confusion and make it difficult to build upon existing knowledge. It is preferable to refine and expand upon the current model as new evidence emerges, rather than discarding it entirely. This approach ensures continuity and progress in scientific understanding while maintaining a coherent framework for further exploration.

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Answer:

True

Explanation:

I think this is a helpful for you

Answer:

Explanation:

Here, we want to give a reason for why one of the reactions might not occur

Generally, a metal that is above another in the electrochemical series will displace it from its salt

Now, Aluminum is higher than copper, thus, it would displace it (from CuCl2, a reaction will occur). However, Aluminum is lower than magnesium. Thus, it will not displace it from its salt (MgCl2 and no reaction will occur)

Answer:

protons

Explanation:

btw you protons and electrons are always the same

prcAnswer:

e c. proton

Explanation:

i pueslist

The formula for the ionic compound containing barium ions and sulfate ions is option C: BaSO₄.

Ionic compounds are compounds composed of ions held together by electrostatic forces of attraction. They consist of positively charged ions, known as cations, and negatively charged ions, known as anions. The cations and anions are formed when atoms gain or lose electrons to achieve a stable electron configuration. Ionic compounds are typically formed between metals and nonmetals through a process called ionic bonding.

Barium is a group 2 metal and forms a 2+ cation (Ba²⁺). Sulfate is a polyatomic ion with a 2- charge (SO₄²⁻). In order to balance the charges and form a neutral compound, we need two barium ions (2 x 2+ = 4+) to combine with one sulfate ion (1 x 2- = 2-). This gives us the formula BaSO₄.

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Answer:

D. 45.0 g

Explanation:

In present reaction, 1 mol of N2 react with 3 moles of H2 to generate 2 moles of NH3

Thus, 2 moles of NH3 ≡ 3 moles  of H2

Therefore, 15 moles of NH3 ≡ (3×15)/2 = 22.5 moles of H2.

We know that, 1 mole of H2 ≡ 2 g

Therefore, 22.5 moles of H2 ≡ 2 × 22.5 = 45 g

Thus, 45 g of hydrogen are needed to produce 15.0 mol of ammonia, if the reaction goes to completion

Answer:

From 4.9 g of sulfuric acid 8.175 g of potassium sulfate is formed.

Explanation:

Given data:

Mass of H₂SO₄ = 4.9 g

Mass of K₂SO₄ formed = ?

Solution:

Chemical reaction:

H₂SO₄ + 2KOH    →    K₂SO₄ + 2H₂O

Number of moles of H₂SO₄:

Number of moles = mass/ molar mass

Number of moles = 4.9 g/ 98.1 g/mol

Number of moles = 0.05 mol

Now we will compare the moles of  H₂SO₄ with  K₂SO₄ .

                       H₂SO₄         :             K₂SO₄

                            1             :                  1

                       0.05           :             0.05

Mass of K₂SO₄:

Mass = number of moles × molar mass

Mass = 0.05 mol × 174.3 g/mol

Mass = 8.715 g

Thus, from 4.9 g of sulfuric acid 8.175 g of potassium sulfate is formed.

Answer:

10.43 / 342 × 6.02 × 10 ^23 = 18.34 × 10^ 21

Answer:

A. Metallic Bonds

Explanation:

Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

Answer:

Long range

Explanation:

A. But not too sure

Ions can be made by single element or covalently bonded group of elements. The covalently bonded group of elements is called polyatomic ions or polyatomic atoms. Therefore, the correct option is option D.

Any species that contain charge whether it is positive charge or negative charge is called ions. The example of polyatomic ions are sulfate, phosphate, nitrate etc.

Cation ion  is the species that loose electron and attain positive charge while anion is a species which gain electron and attains negative charge so when anion and cation combine in fixed ration the the overall charge of the molecule is zero that is molecule is neutral, the charge over cation and anion is also called oxidation state. Sulfur (S) exist as S⁻² as ion which is similar to O²⁻.

Therefore, the correct option is option D.

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When the soluble ionic compounds dissolve in the water and it reaches saturation point it means that there is  no more of the solute will be dissolve.

When the ionic compound will dissolve in the water then the water molecule acts like the tiny magnet that will creates the force of attraction on the ions of the solute. When all the molecules of the water have attached  to ions of the solute and there will be no more are available, then the  solution is said to be the  saturated solution, and there is no more of the solute will dissolve.

Thus, the when the solution reaches to the saturation point, there will no more solute available.

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Answer:

At -20°C the mercury state will be liquid

Explanation:

The melting point of a substance is the temperature at which it changes from solid state to a liquid state, and the boiling point is the temperature at which it changes from liquid state to a gaseous state.

If mercury melts at -39°C and boils at 356.9°C, it means that if the temperature is lower than -39°C, mercury will remain al solid state. Between -39°C and 356.9°C, the state of mercury will be liquid and, above 356.9°C mercury will remain at gaseous state.

So, at -20°C the mercury state will be liquid, because that temperature it is between -39°C and 356.9°C.

Answer:

26 c i the write answers. please accept