how many orbitals are in 6s sublevel

Methane is the unidentified gas since its molar mass is 16 g/mol.

When describing atomic masses and molecular masses, the Dalton (Da) or unified atomic mass unit (u) are two alternative units of mass that are frequently employed. It is known to be 1/12 the mass of a carbon-12 atom and is also referred to as "amu" in older.

We must be aware that a gas's molar mass directly relates to how long it takes to diffuse.

t1/t2 = √M1/M2

Let t1 equal the 1.50 minutes it takes for the combustible gas to disseminate. Let t2 equal the 4.73 minutes it takes for the bromine vapor to disperse.

M1 = the flammable gas's molar mass equals

160 g/mol is the molar mass of the bromine vapor, or M2.

replacing values.

1.50/4.73 = √M1/160

(1.50/4.73) ^2 = M1/160

0.1006 = M1/160

M1 = 0.1006 × 160

M1 = 16 g/mol

Methane is the gas in question.

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From the information given:

∴

The volume of the sterling silver pendant is:

= 61.3 mL - 50.0 mL

= 11.3 mL

Since, 1 mL = 1cm³

Then;

11.3 mL = 11.3 cm³

Using the relation for Density; i.e.

\(\mathbf{Density = \dfrac{mass}{volume}}\)

\(\mathbf{10.25 \ g/cm^3= \dfrac{mass}{11.3 \ cm^3}}\)

mass = 10.25 g/cm³× 11.3 cm³

mass of the sterling silver = 115.825 grams

Recall that sterling silver has:

∴

The mass of the copper contained in the sterling silver pendant can be calculated as:

\(\mathbf{= \dfrac{115.825 \ g \times 7.5}{100}}\)

= 8.687 grams

Therefore, we can conclude that the mass of the copper contained in the sterling silver pendant is 8.687 grams

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Answer:0.56L

Explanation:Molar mass of O2=32

N=0.8/32

N=0.025
V=0.025 x 22.4=0.56L

To graph the function g(x) = f(-x), you can start with the graph of f(x) and then reflect it about the y-axis.

To find the graph of the function g(x) = f(-x), we can start with the graph of the function f(x) and then reflect it about the y-axis.

If the graph of f(x) is symmetric with respect to the y-axis, meaning it is unchanged when reflected, then g(x) = f(-x) will have the same graph as f(x).

However, if the graph of f(x) is not symmetric with respect to the y-axis, then g(x) = f(-x) will be a reflection of f(x) about the y-axis.

In either case, the resulting graph of g(x) = f(-x) will be symmetric with respect to the y-axis.

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Answer:

56.96 grams

Explanation:

To find the mass of 1.78 moles of O2, we need to use the molar mass of O2, which is the mass of one mole of O2.

The chemical formula for O2 is O-O or simply O2. The molar mass of O2 is the sum of the atomic masses of two oxygen atoms, which can be found on the periodic table.

The atomic mass of oxygen (O) is approximately 16.00 g/mol. So the molar mass of O2 is:

Molar mass of O2 = 2 x atomic mass of O

= 2 x 16.00 g/mol

= 32.00 g/mol

Therefore, the mass of 1.78 moles of O2 is:

Mass = number of moles × molar mass

= 1.78 mol × 32.00 g/mol

= 56.96 g

So the mass of 1.78 moles of O2 is 56.96 grams.

Answer:The pressure exerted by the gas is 100kPa

Explanation:Let's apply the Charles Gay Lussac law, to solve the question.

At constant volume, the pressure varies proportionally with the temperature.

P initial / T° initial = P final / T° final

50kPa / 20°C = P final / 40°C

Temperature has increased the double, so the pressure will be increased, the double too.

100 kPa

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Answer:

2 should be potential energy and 3 should be A

Explanation:

You take the mass of carbon dioxide, 56.8g, divide by its molar mass, 44.01g/mol, to produce the moles of carbon dioxide. This is multiplied by the molar ratio of butane/CO2, (2/8) = 1/4, which gives the moles of butane required to produce the carbon dioxide.

The mass of a substance is the product of the moles and the molar mass. 65.5 g of carbon dioxide will be able to produce 21.62 grams of butane.

The mass of a reactant or a product is estimated by the number of moles and the molar mass of the substance.

The combustion reaction of methane is shown as,

2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O

Given,

Molar mass of butane = 58.12 g/mol

Mass of carbon dioxide = 65.5 g

Molar mass of carbon dioxide = 44.01 g/mole

Moles of carbon dioxide are calculated as,

Moles = mass ÷ molar mass

= 65.5 ÷ 44.01

= 1.488 moles

From the above reaction, two moles of butane produce eight moles of carbon dioxide. So, 1.488 moles of carbon dioxide will be produced from,

2 × 1.488 ÷ 8 = 0.372 moles

The moles of butane required is 0.372 moles

The mass of butane from moles is calculated as,

Mass = moles × molar mass

= 0.372 × 58.12 g/mole

= 21.62 gms

Therefore, 21.62 gm of butane is required to produce 65.5 g of carbon dioxide.

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Concentration of the reactants decreases over time as they are used up in the reaction. This means that there are fewer collisions between the reactant particles per unit time, leading to a decrease in the rate of reaction. Additionally, as the reaction progresses, the concentration of the product molecules increases, leading to an increase in the likelihood of the reverse reaction (i.e., CaCl2 + H2O + CO2 → CaCO3 + 2HCl) occurring. This also contributes to a decrease in the rate of the forward reaction over time.

Answer:

b?

Explanation:

The answer is C: Radiant energy from the sun travels through the glass, is absorbed by the black pot, and reflected by the aluminum foil.

Answer:

option a. Temperature is equal to 273 k. Is the correct one

A boils when its vapour pressure is equal to, or greater than, the external pressure pushing on it. Therefore, option (b) is correct.

A boiling point of a liquid can be defined as the temperature at which the vapour pressure becomes equal to the atmospheric pressure of the liquid. The liquid is converted into a vapour at this temperature.

With the addition of heat that the liquid changes into vapour without any increase in temperature. The vapour pressure increases until it is equal to the pressure of the gas surrounding it as a liquid is heated. Bubbles of vaporized liquid are formed within the liquid and rise to the surface.

At the boiling temperature, the vapour inside the bubble will exert enough pressure to prevent the bubble from collapsing. The molecules of a liquid will able to overcome the forces of attraction between molecules to create vapour.

Therefore, at boiling point, the vapour pressure is equal to, or greater than, the external pressure pushing on it.

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0.0205 moles of water were lost if the amount of water lost was 0.369 grams. The given answer is in three significant figures with including zero before the decimal.

To find the number of moles of water lost, we need to know the molar mass of water (H2O).

Molar mass is the sum of the atomic masses of all the atoms present in a molecule.

Since the molecule of water contains two atoms of hydrogen and one atom of oxygen, the molar mass of water is given by the sum of the atomic masses of two hydrogen atoms and one oxygen atom, which is: 2(1.008 g/mol) + 1(15.999 g/mol) = 18.015 g/mol

Therefore, one mole of water has a mass of 18.015 g.

The number of moles of water lost can be calculated using the following formula: Number of moles = Mass of substance / Molar mass of substance

Substituting the given values, we get: Number of moles = 0.369 g / 18.015 g/mol = 0.0205 mol

Thus, 0.0205 moles of water were lost if the amount of water lost was 0.369 grams.

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So,

Let's begin with the first compound.

We're given the following ions:

What we need to do to find the empirical formula of the compound formed by these ions, is to change the numbers of the ionic charges by the number atoms of the other compound. Let me explain this with a drawing:

In this case, both charges are 1, so, the ionic compound formed is Cu(NO3). The name of this compound is Copper(I) nitrate.

Let's continue with the second one:

So, the formed compound is:

This compound is called Lead(IV) Periodate.

And finally, let's do the third one:

Thus, the empirical formula of this compound will be:

The name of this compound is Calcium Acetate.

Answer:

I need to se the options

Answer: Clouds need two things to form: cool air and particles on which water vapor can condense. Clouds form as air cools. Cold air cannot hold as much water vapor, so the water vapor condenses. Water vapor condenses on small particles in the atmosphere, such as smoke, salt, and dust. As a result, clouds form.

Explanation: correct on edge

The given statement "A parasitic way of life can be best demonstrated by the feeding adaptations of the spider." is False. Because, While some spiders are parasites, not all spiders are parasitic.

Additionally, many spiders are not even true parasites, as they typically do not harm their host organism. Spiders are typically classified as predators, as they feed on other insects and arthropods. While some spiders may occasionally feed on the blood of larger animals, such as birds or mammals, this behavior is not typically considered parasitic, as it does not involve a long-term relationship between the spider and the host organism.

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Explanation:

Reasons why you should not dispose of chemicals down drains

Pipes, especially older pipes, can leak at connections or where they have been damaged. Often large pipes, like storm water pipes or really large sewage mains, are made out of concrete so at places where two pipes meet, there can be minor leaks. It’s not a big deal when it’s just a little bit of storm water leaking, but if chemicals are also in this water, you’ve just given them a direct path to contaminating drinking water! Also, some of Indianapolis’s infrastructure is very old, and pipes used to be made out of things like bricks and hollowed out trees which will also leak.

Disposing of chemicals down drains can damage your plumbing which can be expensive to repair and also allow those chemicals a direct path into the groundwater.

Improperly disposing of chemicals at your site can lead to environmental contamination of your site which can be time consuming and expensive to clean up.

The ideal gas law can be reorganized to arrive at: assuming that the volume and molecular weight of the gas remain constant:

P/T = constant indicates that the gas's pressure must rise with its temperature in order to maintain a constant ratio of pressure to temperature.

Consequently, if we heat the gas while maintaining its volume and molecular weight, its pressure will rise.

In other words, it is a measure of how quickly the particles of a substance are moving. Temperature is a fundamental physics concept that can be measured in Kelvin (K), Fahrenheit (°F), and Celsius (°C) scales, among others.

On the Celsius scale, water boils at 100°C and freezes at 0°C at normal atmospheric pressure. On the Fahrenheit scale, water boils at 212°F and freezes at 32°F at normal atmospheric pressure. On the Kelvin scale, 0 K is the theoretical minimum temperature at which all particles have no kinetic energy.

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Answer:

(c) 5.96 x 10^-2 x 8.56 x 10^-2

Explanation:

Definition: Orbital Speed Equation—Circular Orbit

n the special case of a circular orbit, an object's orbital speed, , is given by the equation  =   , where is the universal gravitational constant, is the mass of the large object at the center of the orbit, and is the orbital radius.

Answer:

e. None of these.

Explanation:

Hey there!

In this case, since the Henry's law is defined in terms of pressure, henry's constant and pressure, as shown below:

\(C=K_H*P\)

Whereas C is the concentration, KH the Henry's constant and P the pressure, we infer that the concentration of a gas solution is directly proportional to the pressure, which is not the group choices, therefore, the answer is e. None of these.

Best regards!

Answer:

C₅H₁₀.

Explanation:

To determine the molecular formula of the compound, we need to know the molar mass of the compound. Since the empirical formula is CH₂, the empirical molar mass can be calculated as:

Empirical molar mass = 12.01 g/mol (atomic mass of C) + 2(1.01 g/mol) (atomic mass of H)

Empirical molar mass = 14.03 g/mol

The molecular mass of the compound is given as 70.15 g/mol. To find the molecular formula, we need to know how many empirical units are present in the molecule. This can be calculated by dividing the molecular mass by the empirical molar mass:

Number of empirical units = Molecular mass / Empirical molar mass

Number of empirical units = 70.15 g/mol / 14.03 g/mol

Number of empirical units = 5

This means that there are 5 empirical units (CH₂) present in the molecular formula of the compound. Therefore, the molecular formula is:

Molecular formula = 5(CH₂) = C₅H₁₀

Thus, the molecular formula of the compound is C₅H₁₀.

Answer:

the spiral type of galaxy

Our earth is situated in the Milky Way galaxy. The Milky Way galaxy is a spiral galaxy. Therefore, the correct option is option C.

The Milky Way constellation is indeed a huge spiral formation containing hundreds of trillions of stars, along with the Sun. the irregularly formed belt of stars and gas clouds visible from Earth that spans the sky. despite the reality that Earth is positioned within the Milky Way constellation, astronomers do not completely understand its nature, despite its proximity with other external star systems.

A dense layer of interstellar dust obscures the majority of the Galaxy from optical observatories, and astronomers can only understand its massive building with the assistance of radio and infrared telescopes, which can detect the forms of light that may travel through the obscuring material. Our earth is situated in the Milky Way galaxy. The Milky Way galaxy is a spiral galaxy.

Therefore, the correct option is option C.

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Answer:

See explanation

Explanation:

For the first question, we can see that the pressure is constant so we apply Charles law;

V1/T1 =V2/T2

V1T2 = V2T1

V1= 4.5 L

T1= 27 + 273 = 300 K

V2= ?

T2= 127 + 273 = 400 K

V2= V1T2/T1

V2= 4.5 × 400/300

V2= 6L

For question 2, Charles law is also used;

V1/T1 =V2/T2

V1T2 = V2T1

T1= 338 K

V1= 0.480 L

T2= ?

V2= 9.2 L

T2= V2T1/V1

T2= 9.2 × 338/0.480

T2= 6478.3 K

Answer:

Control group

Answer:

different chemical properties and the same physical properties

Explanation:

Both carbon monoxide and carbon dioxide are gases.

So physically, the two compounds have no fixed shape and volume and their molecules are far apart.

Therefore, they have similar physical properties.

Based on chemical properties, the compounds or molecules given are different.

They will combine chemically in diverse ways.

3. different chemical properties and the same physical properties

Physical properties:  

Chemical properties:

Therefore, option 3 is correct.

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