What is the name of the compound N2Cl4?
How did you determine the bond type?
What were the steps you used to determine the naming convention for the compound?

A amount of shine best describes visible light. Therefore, option A is correct.

Light, also known as "visible light," refers to the visible region of the electromagnetic spectrum, or the range of wavelengths that cause humans to perceive brightness and color. It falls somewhere between UV and infrared radiation.

People think of the sun, light bulbs, candles, and fire when they think of light, but visible light comes from many sources and in many colors. Other visible light sources include television and computer screens, glow sticks, and fireworks.

Thus, option A is correct.

To learn more about the visible light, follow the link;

https://brainly.com/question/10709323

#SPJ9

The molar mass of the substance is needed to convert between the moles of a given sample of a substance and its mass in grams.

A compound's molar mass, which is measured in grams per mole, specifies how much of a given material weighs in one mole. In other terms, the molar mass is the sum of the masses of all the atoms that make up a mole of a certain molecule, expressed in grams. As a result, the molar mass is measured in grams/mole.

The compound's molar mass is expressed in grams per mole, or g/mol. The mass of 1 mol, expressed in the SI as g/mol, is the definition of the molar mass. Example: Water has a molar mass of 18.016 g/mol.

Thus, The molar mass of the substance is needed to convert between the moles of a given sample of a substance and its mass in grams.

To know more about molar mass refer to:

https://brainly.com/question/837939

#SPJ1

The complete question is as follows:

What quantity is needed to convert between the moles of a given sample of a substance and its mass in grams?

a the molar mass of the substance

b the density of the substance

с the physical state of the substance

d all of the above

What percentage of the Earth's surface is covered by oceans?

71 percentage

What percentage of the Earth's surface is covered by oceans?

71 percent/%

Answer:

A limitation of models in science is that they are usually simplified versions of the real situation or concept.sometimes, models spark debates leading to new and improved models.A model may be used when it is impossible to create the conditions necessary to test a concept of theory.

hope it is helpful...

A second source of variation in a population is genetic recombination through sexual reproduction. During meiosis, homologous chromosomes exchange genetic material through crossing-over, leading to new combinations of alleles in the offspring.

Additionally, independent assortment of chromosomes during meiosis leads to different combinations of alleles being inherited together. These processes can result in new combinations of traits in the offspring, leading to genetic diversity within a population.

This diversity is essential for adaptation to changing environmental conditions, as some individuals may possess traits that allow them to survive and reproduce more successfully than others. Over time, natural selection acts on this variation, leading to the evolution of new species.

Genetic recombination is a process that occurs during sexual reproduction, in which genetic material from two parents is combined to form a unique offspring. This process generates genetic diversity within a population, allowing for the development of different traits and adaptations.

Learn more about meiosis here:

https://brainly.com/question/29383386

#SPJ4

Answer:  Mass is neither created nor destroyed

Explanation: Mass or matter cannot be created or destroyed even by chemical or physical changes/transformations

The main component in a cement slab in a house is typically Portland cement.

Key points:

Learn more about cement slabs here:

https://brainly.com/question/5842807

#SPJ4

The percent composition of salicylic acid is C7H6O3, or 60.87%C, 4.4%H, and 34.75%O

The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.

Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.

Therefore, the correct option is D.

Learn more about Medication, here:

https://brainly.com/question/11098559

#SPJ1

The calcium ion has 18 protons, 20 neutrons, and 20 electrons.
The relationship between the components a and b is Inverse proportion.


The calcium ion (Ca2+) has a 2+ charge, indicating that it has lost 2 electrons from its neutral state. To determine the number of protons, neutrons, and electrons in the calcium ion, we need to consider its atomic number and mass.

The atomic number of calcium is 20, which indicates that it has 20 protons. Since the calcium ion has a 2+ charge, it means it has lost 2 electrons. Therefore, the number of electrons in the calcium ion is 20 - 2 = 18.

The mass number of calcium is 40 amu, which represents the total number of protons and neutrons. Since the calcium ion has 20 protons, the number of neutrons can be calculated as 40 - 20 = 20.

So, the correct option is: d. 18 protons, 20 neutrons, and 20 electrons

In the expression a∼1/b, the relationship between the components a and b is an inverse proportion. This means that as the value of a increases, the value of b decreases, and vice versa. The symbol ∼ represents the proportional relationship between a and 1/b, indicating that they are inversely related. Therefore, the correct answer is: Inverse proportion

To know more about calcium , click here, https://brainly.com/question/32135261

#SPJ11

\(\\ \sf\longmapsto Mass\%=\dfrac{Mass\;of\:solute}{Mass\:of\:solvent}\times 100\)

\(\\ \sf\longmapsto Mass\%=\dfrac{35}{250}\times 100\)

\(\\ \sf\longmapsto Mass\%=\dfrac{7}{50}\times 100\)

\(\\ \sf\longmapsto Mass\%=7(2)=14\%\)

In a constant volume process, no work is done (w = 0) because the volume remains constant. Therefore, option (a) a. q = 0 and ΔE = w, the change in internal energy (ΔE) is equal to the heat transfer (q), resulting in q = 0 is the answer.

b. This statement is not true because it suggests that both work (w) and heat transfer (q) are zero, which is not necessarily the case for a constant volume process.

c. This statement is not necessarily true. ΔE represents the change in internal energy, while ΔH represents the change in enthalpy. Enthalpy is defined as the sum of the internal energy of a system and the product of pressure and volume. In a constant volume process, there is no change in volume, so the change in enthalpy (ΔH) may not necessarily be equal to the change in internal energy (ΔE).

d. This statement is not necessarily true for the same reasons as statement c.

e. This statement is not necessarily true. Work (w) can be zero in a constant volume process if there is no change in pressure, but it can also be non-zero if there are other forms of work involved, such as electrical work or shaft work.

To know more about the first law of thermodynamics refer here :

https://brainly.com/question/3808473#

#SPJ11

Answer: The balanced equation is \(AlCl_{3} + 3Cs \rightarrow 3CsCl + Al\)

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.

For example, \(AlCl_{3} + Cs \rightarrow CsCl + Al\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance this equation, multiply Cs by 3 on reactant side and multiply CsCl by 3 on product side.

Hence, now the equation will be as follows.

\(AlCl_{3} + 3Cs \rightarrow 3CsCl + Al\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

Thus, we can conclude that this equation is balanced.

The bond energy is the energy that must be supplied to break the bond. Ionic substances are held together by strong bonds.

This question is incomplete but I will try to explain what is meant by average bond energy as the tables are missing.

The average bond energy of a bond simply means the energy that is stored in that bond as it holds two atoms together. It is equal to the energy that must be supplied to break the bond. The numerical value of the bond energy can not be deduced as the data is missing.

Learn more about bond energy: https://brainly.com/question/26141360

Isotopes are the elements which have same atomic number but different mass numbers.

Same atomic number tells that the number of protons present in those elements are same but different mass number tells that the number of nucleons is not the same.

These elements share same position in the periodic table and are stable. With the stability of isotopes it means they do not emit radiations.

The unstable isotopes are those isotopes which emit radiations and this might happen due to the atomic defect that shifts the position of particle, creating F-center which emits radiations.

These isotopes undergo radioactive decay. These decays can be alpha-decay, beta(+) decay or beta(-) decay.

Therefore, unstable isotopes means the isotopes of elements which emit radiations.

To learn more about isotopes, refer: https://brainly.com/question/11605145

#SPJ4

Explanation:

V1/T1 = V2/T2      T  must be in Kelvin

12.78 / (-50 + 273.15)  =  V2 / ( 28+ 273.15)

V2 = 17.25 L

The energy of the wave of frequency 3.78×10¹⁰ Hz is 2.5×10⁻²³ J.

Energy is the ability or the capacity to perform work.

To calculate the energy of the wave, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the energy of the wave is 2.5×10⁻²³ J.

Learn more about energy here: https://brainly.com/question/18027835

#SPJ1

Answer : The correct option is, electron.

Explanation :

As we know that,

An atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or the center of the nucleus where the mass of the an atom is concentrated.

The electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

According to the question, the electron subatomic particle found revolving around the nucleus.

Hence, the correct option is electron.

The change in entropy in J/K for:

A. the vaporization of 50.0 g of benzene (C₆H₆) at its boiling point of 80°C. ∆\(H_v_a_p\) = 31.0 kJ/mol is 138.34 J/K.

B. the melting of 50.0 g of benzene (C₆H₆) at its freezing point of 5.5°C. ∆\(H_f_u_s\) = 9.92 kJ/mol is 56.39 J/K.

C. A 555 g sample of acetone (CH₃COCH₃) is 150 J/K. If the acetone starts at 10.0°C the final temperature is 11.1°C.

To calculate the change in entropy (∆S) in J/K for the given processes, we can use the equations:

∆S = ∆H / T

where ∆H is the change in enthalpy and T is the temperature in Kelvin.

A. Vaporization of 50.0 g of benzene (C₆H₆) at its boiling point of 80°C (∆\(H_v_a_p\) = 31.0 kJ/mol)

First, we need to calculate the moles of benzene (C₆H₆) using its molar mass:

Molar mass of benzene (C₆H₆) = 78.11 g/mol

Moles of benzene = 50.0 g / 78.11 g/mol = 0.640 mol

Now, we can calculate the change in entropy:

∆S = ∆\(H_v_a_p\) / T

T = 80°C + 273.15 = 353.15 K

∆S = (31.0 kJ/mol) / (0.640 mol) / (353.15 K)

= 138.34 J/K

Therefore, the change in entropy for the vaporization of 50.0 g of benzene is 138.34 J/K.

B. Melting of 50.0 g of benzene (C₆H₆) at its freezing point of 5.5°C (∆\(H_f_u_s\) = 9.92 kJ/mol)

Similarly, we calculate the moles of benzene:

Moles of benzene = 50.0 g / 78.11 g/mol = 0.640 mol

∆S = ∆\(H_f_u_s\) / T

T = 5.5°C + 273.15 = 278.65 K

∆S = (9.92 kJ/mol) / (0.640 mol) / (278.65 K)

= 56.39 J/K

Therefore, the change in entropy for the melting of 50.0 g of benzene is 56.39 J/K.

C. For the 555 g sample of acetone (CH₃COCH₃) with a specific heat capacity of 141.5 J/mol*K.

∆S = \(C_p\) * ∆T

∆T = final temperature - initial temperature

∆S = (141.5 J/mol*K) * (final temperature - 10.0°C)

555 g = 0.555 kg

∆S = (141.5 J/mol*K) * (∆T) = 150 J/K

Solving for ∆T:

∆T = 150 J/K / (141.5 J/mol*K) = 1.059 K

Final temperature = 10.0°C + 1.059 K = 11.059°C

Therefore, the final temperature of the acetone sample is approximately 11.1°C.

To know more about entropy here

https://brainly.com/question/20166134

#SPJ4

Chromosomes are formed inside the nucleus of a cell. They carry genetic information and are responsible for traits and characteristics passed down from one generation to the next. Chromosomes play a crucial role in cell division, and chromosomal abnormalities can lead to a variety of genetic disorders.

For more questions on Chromosomes

https://brainly.com/question/32612200

#SPJ8

Answer: Mass takes into account the force of gravity.

Explanation:

0.956 grams of sulfur must be obtained.

The experiment demonstrates the Law of Definite Proportions. This law states that in any chemical compound, the elements are always present in the same proportions by mass.

In this experiment, hydrogen and sulfur combine to form hydrogen sulfide. The mass of hydrogen in hydrogen sulfide is always 0.419 grams, and the mass of sulfur is always 0.956 grams. This is because the elements combine in a fixed ratio of 1:2.

If 0.419 grams of hydrogen are obtained, then 0.956 grams of sulfur must be obtained to satisfy the Law of Definite Proportions.

Here is a table of the masses of hydrogen and sulfur in hydrogen sulfide:

Element Mass

Hydrogen 0.419 g

Sulfur 0.956 g

The Law of Definite Proportions is a fundamental law of chemistry that is based on the principle of conservation of mass. This law states that the elements in a chemical compound always combine in the same proportions by mass. This is because the atoms of the elements in a compound are always combined in the same ratio.

The Law of Definite Proportions is important because it allows us to calculate the masses of the elements in a chemical compound. This information is essential for many chemical calculations, such as determining the formula of a compound or calculating the yield of a reaction.

To learn more about Conservation of Mass, here

https://brainly.com/question/28711001

#SPJ4

Answer:

1. Number 3

2. Number 1

3. Number 5

4. Number 4

5. Number 2

I think, this is the order.

Answer:

The letters, s, p, d, and f designate the shape of the orbital. (The shape is a consequence of the magnitude of the electron's angular momentum, resulting from its angular motion.) An s orbital is spherical with its centre at the nucleus.

Answer:

Direct measurement' refers to measuring exactly the thing that you are looking to measure, while 'indirect measurement' means that you're measuring something by measuring something else. For example of direct measurement is weight, distance, and so on.

Explanation:

Hope this helps :)

Explanation:

from definition of density we have

density=mass/volume

and density=55 mass=220g

volume=220/55

volume=4ml

or 4×10^-3l

Answer:

4cm³

Explanation:

220.0g is our mass

55.0g/cm³ is our density

220g/55g/cm³

= 4cm³

Answer: 1 x 10-3 mol/L

Explanation:

Question

What concentration of H+ ions does a substance with a pH of 3 have​

the pH is the negative log of the H ion concentration in moles/liter

so pH3 has a hydrogen ion concentration of 1 x 10-3 mol/L

A particular medication dosage is 45.0 mg/kg of body weight. The mg of the medication should a child weighing 47.3 lbs. receive is 965.25 mg of the medication.

To find the correct dosage of medication for a child weighing 47.3 lbs, we need to convert the child's weight from pounds to kilograms and then multiply by the dosage amount.

Step 1: Convert the child's weight from pounds to kilograms.
1 kg = 2.20462 lbs
47.3 lbs ÷ 2.20462 = 21.45 kg
Step 2: Multiply the child's weight in kilograms by the dosage amount.
21.45 kg × 45.0 mg/kg = 965.25 mg
Therefore, the child should receive 965.25 mg of the medication.

Learn more about medication at:

https://brainly.com/question/29435097

#SPJ11

In the 150 ml Erlenmeyer flask, the number of molecules of propane can be calculated using the ideal gas law n=PV/RT.

Molecules are the building blocks of matter composed of two or more atoms chemically bonded together.

Number of molecules of propane in the 150 ml erlenmeyer flask are 3.9*10^22

To calculate the number of molecules of propane in the 150 mL Erlenmeyer flask, we need to know the concentration of propane in the flask.

If we assume that the flask is filled with pure propane at standard temperature and pressure (STP), we can use the ideal gas law to calculate the number of molecules.

The ideal gas law equation is:

PV = nRT

Where:

P = pressure (in atm)

V = volume (in liters)

n = number of moles

R = ideal gas constant (0.0821 L·atm/mol·K)

T = temperature (in Kelvin)

Assuming STP conditions (1 atm and 273 K), we can convert the volume from milliliters to liters by dividing by 1000:

V = 0.150 L from 150 mL / 1000

To solve for the number of moles (n), we may now rearrange the ideal gas law equation as follows:

n = PV / RT=0.39

If you provide the pressure and temperature information, we can calculate the number of moles and then convert it to the number of molecules using Avogadro's number (6.022 x 10^23 molecules/mol)=3.9*10^22.

To learn more about Molecules, visit:

https://brainly.com/question/32298217

#SPJ11

When antacid reacts with HCl to produce H2CO3 it produce fizzy gas react due to a double displacement reaction.

Table salt and carbonic acid are produced in a two fold displacement process when hydrochloric acid and antacid are combined. Additionally, due to the instability of carbonic acid, it will decompose into water and carbon dioxide, emitting a "fizzy" gas.

Strong acid hydrochloric acid is denoted by the chemical formula HCl. The primary ingredient in antacids is sodium bicarbonate, sometimes known as baking soda and has the chemical formula NaHCO3.

Antacid undergoes a chemical reaction when it reacts as a carbonate with powerful acids like hydrochloric acid to create compounds with a different chemical makeup from the beginning components. Similar reactions will be produced by other carbonates, such as calcium carbonate, which makes up the majority of Tums.

For more information on double displacement reaction kindly visit to

https://brainly.com/question/29307794

#SPJ4