When 29.0 g of butane reacts with oxygen, 88.0 g of carbon dioxide and 45.0 g of water are produced. What mass of oxygen reacted with the butane?

a) A combound which contains only Carbon and Hydrogen. There are covalent bonds between atoms. Hydrogen form one single bond and Carbon forms four covalent bonds. Carbon bonds can be single, double or triple bonds.

  All hydrocarbons are organic compounds, but organic compound can include atoms of other elements.

b)  Alkyne has a  covalent triple bond between two carbon atoms. Simplest alkyne is ethyne HCCH.  

b) Alkane contains only Carbon and  Hydrogen and there are single bonds

  between atoms. Simplest alkane is methane CH4.

c) An alkene has one double bond between Carbon atoms. Simplest

alkene is ethene  H2C=CH2.

The volume occupied by one mole of gas at stp is known as the standard molar volume of a gas. It has been found to be 22.41410 L. According to Avagadro's law, one mole of any gas will occupy the same volume as one mole of any other gas at the same temperature and pressure, despite mass difference. Knowing the volume of gas, you can use 1 mol/22.4L as a conversion factor to find the number of moles, and therefore the mass, of a given volume of a given gas at STP.

Behaviour of gases:

‎ㅤ‎ㅤ‎ㅤ ➝ PV = KT

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Answer:

unconsolidated material that contains nutrient matter and weathered rock

Explanation:

Earth's crust is made up of many layers. The top is soil, which provides the most nutrients for plants, like hummus( The organic nutrient for soil, form from the decaying of plants and animals)

The soil gets its texture from the bedrock, the bottom layer, which weathers, and goes into the soil.

-kiniwih426

The binding energy per nucleon for the ¹⁹F nucleon is equal to 7.786 MeV/nucleon.

Binding energy can be defined as the minimum quantity of energy that is required to remove the particle from the system. Nuclear binding energy can be described as the energy required to dismantle a nucleus of an atom into free neutrons and protons.

The binding energy will be determined from the mass defect. Mass defect is calculated from the difference between the mass observed and the expected combined mass.

Given the mass of the ¹⁹F = 18.9984 a.m.u.

The mass defect for the ¹⁹F can be calculated as:

Δm = \((M _n +M_p) - M_F\)

\(\triangle m =( 9\times 1.0078 + 10 \times 1.0087 )- 18.9984\)

\(\triangle m =0.1588 \;a.m.u.\)

The binding energy for the fluorine can be calculated as:

E = Δmc²

E = 0.1588 × 931.5

E = 147.92 MeV

The binding energy per nucleon of ¹⁹F can be calculated as:

B.E.N. = 147.92/18.9984 = 7.786 MeV per nucleon

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The type of movement that occurs in the plate movement listed above include the following:

These are gigantic pieces of the Earth's crust and uppermost mantle and are made up of oceanic crust and continental crust.

A convergent boundary as the name implies occurs when lithospheric plates are moving towards one another.

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There are 8.73 × 10²⁴ formula units in 14.5 moles of sulfuric acid.

Formula units is an empirical formula of an ionic compound (that does not possess individual molecules) for use in stoichiometric calculations.

The formula unit can be calculated by multiplying the number of moles in a substance by Avogadro's number (6.02 × 10²³).

According to this question, there are 14.5 moles in sulfuric acid. The formula unit can be calculated as follows:

Formula units of sulfuric acid = 14.5 × 6.02 × 10²³

Formula units = 8.73 × 10²⁴ formula units

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An electron moved from a lower energy level to a higher energy level, and during the transition, a random amount of light was released. Option A

An electron is a kind of subatomic particle that has a negative charge. It is possible for it to be free (meaning that it is not associated with the nucleus of any atom) or it may be tied to the nucleus of an atom.

Electrons are sub-atomic particles that may be found in each atom of any chemical element and can occupy different energy levels. These electrons are capable of transitioning between different energy levels.

Electrons may transition from a state with a lower energy level, also known as the ground state, to a state with a higher energy level, also known as an excited state. Alternatively, electrons can transition from a state with a higher energy level to a state with a lower energy level.

When an electron goes from a lower energy level to a higher energy level, the atom takes in more energy, but when the electron moves from a higher energy level to a lower energy level, the additional energy is expelled mostly in the form of light.

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The balanced net ionic equation for the reaction between potassium sulfide and lead(II) nitrate is Pb²⁺(aq) + S²⁻(aq) → PbS(s)

From the question, we are to write the balanced net ionic equation for the given chemical reaction.

The given chemical reaction is

K₂S(aq) + Pb(NO₃)₂(aq) →

The between potassium sulfide and lead(II) nitrate will produce potassium nitrate and lead sulfide.

That is,

K₂S(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbS(s)

Now, balance the equation

K₂S(aq) + Pb(NO₃)₂(aq) → 2KNO₃(aq) + PbS(s)

Write the complete ionic equation

2K⁺(aq) + S²⁻(aq) + Pb²⁺(aq) + 2NO₃⁻(aq)  → 2K⁺(aq) + 2NO₃⁻(aq) + PbS(s)

Cancel out the spectator ions

S²⁻(aq) + Pb²⁺(aq)   → + PbS(s)

Hence, the balanced net ionic equation is

Pb²⁺(aq) + S²⁻(aq) → PbS(s)

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Answer:

sub my channel pls

Explanation:

CoolBoiAmeen

1056644.36 calories are in 4421 kilojoules.

As,

1 Kilojoule = 1000 joule

4421 Kilojoule = 4421000 joule

4.184 J = 1 cal

1 J = 1/4.184 cal

4421000 J = 4421000/4.184

So,

4421000 J = 1056644.35 Cal

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Answer:

0.600 g/cm³

Explanation:

Step 1: Given data

Step 2: Calculate the volume of the cylinder

First, we have to determine the radius, which is half of the diameter.

r = d/2 = 2.34 cm/2 = 1.17 cm

Then, we use the formula for the volume of the cylinder.

V= π × r² × h

V= π × (1.17 cm)² × 6.62 cm

V = 28.5 cm³

Step 3: Calculate the density (ρ) of the sample

The density is equal to the mass divided by the volume.

ρ = m/V

ρ = 17.1 g/28.5 cm³

ρ = 0.600 g/cm³

Body systems work together to maintain the entire organism then the body response to the running mile is then the breathing may become heavy as well as pulse quicken as heart pump harder

According to the given data body temprature from starting it is 98.6°F (37°C) and the ending data is 99.1°F (38°C) and pulse and heart rate is from starting 80 bpm and ending it is 120 bpm and respiration rate is from starting 18 bpm and the ending it is 28 bpm and sweating in starting is normal and in the ending it is increase and skin temprature in starting is 91°F (33°C) and ending is 92.5°F (35°C) so when the student start to run the heat or temprature in the body is normal but when the student run a mile the temprature as well as pulse and heart rate and respiration rate is also increases

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Answer:

Based on the student's work, the concentration of I2 in water would be 0.001202 mol/L.

Part 1 to be 0.0185 M. They also determined the average concentration of I2 in the CH2Cl2 phase from their 'best two' determinations in Part 2 to be 0.0197 M.The concentration of iodine present in water in mol/L is 0.0009.

A substance's concentration is the amount of solute present in a given amount of solution. Molarity is the number of moles of solute in one liter of solution and is used to express concentrations.

Given:

Step 1:

The total concentration of reducible iodine is 0.0185 M

The concentration of iodine in dichloromethane layer is 0.0197 M

Step 2 :

Therefore, the concentration of iodine present in layer can be calculated as follows:

Concentration of iodine in water = Concentration of iodine in dichloromethane layer - Total concentration of reducible iodine

= 0.0197 M - 0.0185 M

= 0.0009 M or 0.0009 mol/L

Therefore, the concentration of iodine present in water in mol/L is 0.0009.

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Atomic size decreases in a period but the ionization energy and electronegativity increases across a period.

Atomic radius decreases across a period because of nuclear charge increases whereas atomic radius of atoms generally increases from top to bottom within a group because there is again an increase in the positive nuclear charge.

Ionization energy increases when we move from left to right across an period and decreases from top to bottom.

Electronegativity also increases from left to right across a period and decreases from top to bottom.

So we can conclude that atomic size decreases in a period but the ionization energy and electronegativity increases across a period.

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Answer:

I think it's Csl

I don't really know

but follow me and heart this

Answer:

44 grams of CO₂ will be formed.

Explanation:

The balanced reaction is:

C + O₂ → CO₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

Being the molar mass of each compound:

By stoichiometry the following mass quantities participate in the reaction:

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

If 12 grams of C react, by stoichiometry 32 grams of O₂ react. But you have 40 grams of O₂. Since more mass of O₂ is available than is necessary to react with 12 grams of C, carbon C is the limiting reagent.

Then by stoichiometry of the reaction, you can see that 12 grams of C form 44 grams of CO₂.

44 grams of CO₂ will be formed.

A statement which explains this change in the moon’s rising and setting times include the following: C. Earth rotates, and the moon revolves around Earth.

In Science, a Moon can be defined as the natural satellite of planet Earth and it typically shines due to the reflected light from the Sun, as it revolves around the Earth from west to east in a month (29½ days).

In Astronomy, there are four (4) Moon phases and these include the following:

Based on astronomical records and information, the rotation of planet Earth and the revolution of the Moon around planet Earth significantly influences the rising and setting times of the Moon.

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Complete Question:

A student records the rising and setting times of the moon for a month. She notices that the moon rises and sets 50 minutes later each day. She studies these data to develop an explanation for the change in time. What explains this change in the moon’s rising and setting times?

answer choices

Earth revolves around the moon.

The moon revolves around the sun.

Earth rotates, and the moon revolves around Earth.

The moon rotates on its axis, and Earth revolves around the sun.

The grams solutes ini 835 mL of 0.390 M KBr is 38.75 g.

The grams can be calculated as follows:

The first you should calculate the molar

Times the molar of KBr by its valume to get moles

n = Molar x volume

n = 0.390 M x 0.835L

n = 0.32565 moles

thus, you should calculate molar mass so you can calculate the gram

Mass of potasium = 39.10 g/mol

Mass of Bromine = 79.904 g/mol

mass molar = 39.1 g/mol+79.9 g/mol = 119 g/mol

The next step is calculate the gram by time the moles to  its mass molar

gram = n x mass molar

gram = 0.32565 moles x 119 g/mol= 38.75 g.

so, The grams solutes ini 835 mL of 0.390 M KBr is 38.75 g.

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Answer:

0.217 g Cl

Explanation:

(Step 1)

Convert volume from mL to L.

It is important to arrange the conversion in a way that allows for the cancellation of units.

1,000 mL = 1 L

 68.78 mL Cl                  1 L
----------------------  x  ------------------  =  0.06878 L Cl
                                  1,000 mL

(Step 2)

Multiply the calculated volume by the density.

It is important to arrange the density ratio in a way that allows for the cancellation of units. Remember, the density ratio compares the mass (g) of chlorine per every 1 liter.

 0.06878 L Cl               3.16 g
------------------------  x  -----------------  =  0.217 g Cl
                                         1 L  

Answer:

She will have an active imagination.

Explanation:

I took the test and i got 90%

But this one is right, hope this helps ( :

Answer:

a

Explanation:

give the person above me brainlest :)

The total pressure in the flask is 0.593 atm.

The total pressure in the flask is calculated as follows:

Moles of methane = 209 mL * 1L/1000 * 1/22.4 L

Moles of methane = 0.00933 moles

Moles of chlorine = 959 mL * 1L/1000 * 1/22.4 L

Moles of chlorine = 0.0428 moles

Chlorine gas is in excess

Moles of methane used = 0.00933 * 0.78

Moles of methane used = 0.00727 moles

Moles of methane left unused = 0.00933 - 0.00727

Moles of methane left unused = 0.00206 moles

Moles of chlorine used = 0.00727 * 3/2 * 0.78

Moles of chlorine used = 0.0109 moles

Moles of chlorine left unused = 0.0428 - 0.0109

Moles of chlorine left unused = 0.0319 moles

Moles of CH₃Cl produced = 0.00727 moles

Moles of HCl produced = 0.00727 moles

Total moles of gas = (0.00206 + 0.0319 + 0.00727 + 0.00727) moles

Total moles of gas = 0.0485 moles

Using the ideal gas equation:

Pressure = nRT/V

where;

n = 0.0485 moles

R = 0.082 L.atm/mol/K

T = 298

V = 2.00 L

Pressure = 0.0485 * 0.082 * 298 / 2

Pressure = 0.593 atm

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Answer:

Mole = molecular weight / molecular mass

Mole = 16/16

Mole= 1

Answer:

Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite

There are approximately \(2.76 * 10^{24\) ammonia molecules in the given sample.

To calculate the number of ammonia molecules in the sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia \((NH_3)\) can be calculated by adding up the atomic masses of nitrogen (N) and hydrogen (H):

Molar mass of \(NH_3\) = (1 x atomic mass of N) + (3 x atomic mass of H)

              = (1 x 14.01 g/mol) + (3 x 1.01 g/mol)

              = 14.01 g/mol + 3.03 g/mol

              = 17.04 g/mol

Now, we can calculate the number of moles of ammonia in the sample using the formula:

Number of moles = Mass of the sample / Molar mass

Number of moles = 78.25 g / 17.04 g/mol

              ≈ 4.5865 mol (rounded to four decimal places)

Finally, we can use Avogadro's number, which represents the number of particles (atoms, molecules, etc.) in one mole of a substance. Avogadro's number is approximately \(6.022 * 10^{23\) particles/mol.

Number of ammonia molecules = Number of moles x Avogadro's number

Number of ammonia molecules ≈ 4.5865 mol x (\(6.022 * 10^{23\) molecules/mol)

                           ≈ \(2.76 * 10^{24\) molecules (rounded to two significant figures)

Therefore, the provided sample contains roughly \(2.76 * 10^{24\) ammonia molecules.

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The number of ammonia molecules in the sample is approximately 2.764 x \(10^{24}\) molecules.

To calculate the number of ammonia molecules in a given sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia (NH3) is calculated as follows:

Molar mass of N = 14.01 g/mol

Molar mass of H = 1.01 g/mol

Total molar mass of NH3 = 14.01 g/mol + (3 * 1.01 g/mol) = 17.03 g/mol

Now, we can calculate the number of moles of ammonia in the sample:

Number of moles = Mass of sample / Molar mass of NH3

Number of moles = 78.25 g / 17.03 g/mol = 4.594 moles

Next, we use Avogadro's number, which states that there are 6.022 x \(10^{23}\) molecules in one mole of a substance.

Number of molecules = Number of moles * Avogadro's number

Number of molecules = 4.594 moles * 6.022 x \(10^{23}\) molecules/mol = 2.764 x \(10^{24}\) molecules

Therefore, there are approximately 2.764 x \(10^{24}\) ammonia molecules in the given sample of 78.25 g.

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Answer:Yes

Explanation:

Because Chinstrap penguins eat krills

Answer:

The waters' temp increased

Explanation:

The temperature of the water in the swimming pool has increased due to the heat from the Sun. As a result, the particles in the water are moving faster and have a higher kinetic energy than in the morning.

A combustion reaction is a type of chemical reaction that involves the rapid combination of fuel (typically a hydrocarbon) with oxygen, resulting in the release of energy in the form of heat and light.

Combustion reactions are often characterized by the presence of a flame and the production of carbon dioxide (CO₂) and water (H₂O) as products.

In the given balanced combustion reaction:

C₂H₂ + 5O₂ → 4H₂O + 2CO₂

The stoichiometric ratio indicates that 1 mole of C₂H₂ reacts with 2 moles of CO₂ produced. Therefore, if 4.44 moles of C₂H₂ react, we can calculate the moles of CO₂ produced using the ratio:

Moles of CO₂ = (4.44 mol C₂H₂) × (2 mol CO₂ / 1 mol C₂H₂)

Moles of CO₂ = 8.88 mol

Therefore, 8.88 moles of CO₂ will be produced in the combustion reaction.

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The mass of 37.2L of hydrogen gas at 273K and 1 atm is 3.32 grams.

The mass of a gas can be calculated by multiplying the number of moles of the substance by its molar mass.

However, the number of moles in the substance needs to be calculated first by using the Avogadro's equation as follows;

PV = nRT

Where;

1 × 37.2 = n × 0.0821 × 273

37.2 = 22.4133n

n = 1.66 moles

mass of hydrogen gas = 1.66mol × 2g/mol = 3.32 grams.

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Answer:

violet

Explanation:

just violet

oh and you spelled "COLER" wrong, its color or colour if you live somewhere else