how many moles of co2 can be produced from 220. g of propane

Answer:

uhhh well ig btw what plant

Explanation:

it would be more sunlight to

Electrons were in orbits of both fixed size and energy.

The main features of Niels Bohr's proposed atomic model are listed below.

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Answer:

The final temperature is  39.58 degree Celsius

Explanation:

As we know

Q = m * c * change in temperature

Specific heat of water (c) = 4.2 joules per gram per Celsius degree

Substituting the given values we get  -

5750 = 335 * 4.2 * (X - 35.5)

X = 39.58 degree Celsius

it is b forces hold matter together

A force is a push or pull on an object. Forces usually cannot be seen but their effects can. Nothing moves, changes speed, stops or changes direction without force. Heavier objects need more force to get them to move or change direction.

Answer:

Yup, it's B. Forces hold matter together.

Explanation:

The other user is correct. :)

Many agricultural practices involve the emission of greater amounts of methane. The two agricultural practices which result in methane emission is manure management techniques and rice cultivation. The correct options are C and D.

The methane is defined as the simplest hydrocarbon with a chemical formula CH₄. It contains four 'H' atoms and one 'C' atom and it is the simplest alkane.

The main sources of methane emissions from agriculture are enteric fermentation, manure management, rice cultivation and residue burning. The production of methane also occurs animal wastes. Methane emissions occurs from paddy rice when soils are flooded.

Thus the correct options are C and D.

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The heat of reaction when 44.4 ml of 1.3M nitric acid reacts with 51.5 ml of 0.6M sodium hydroxide is 1.65 KJ/mol.

The neutralization reaction of HNO₃ and NaOH takes place according to the reaction as,

HNO₃+ NaOH → NaNO₃ + H₂O

So, as we can see, one mole of HNO₃ reats completely with one mole of NaOH.

The heat of reaction is the heat the heat released when one mole of HNO₃ completely reacts with one mole of NaOH. For one mole, the heat of reaction is 53.7 KJ/mol

Now, in this case 44.4 ml of 1.3M nitric acid reacts with 51.5 ml of 0.6M sodium hydroxide.

So, millimoles of HNO₃ are 57.59 millimoles.

Now, millimoles of NaOH are 30.9 millimoles.

So, because NaOH is limiting reagent, so,

The heat of the reaction will be,

Heat of reaction = 53.7 x 1000 x 30.9/1000

Heat of reaction = 1.65 KJ/mol.

So, the heat of the reaction is 1.65 KJ/mol.

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The statement 'reactive oxygen intermediates and reactive nitrogen intermediates produced by phagocytic cells are effective in killing invading microorganisms' is true.

Phagocytic cells are the kind of cells that consume or destroy microorganisms by producing substances that are harmful to them, according to the study of biology.

The phagocytic cells produce oxygen and nitrogen intermediates, and these intermediates are reactive enough to bind to the chemicals in the microbe and inhibit their function. The microorganism dies when its activities are impeded to the point where it is unable to carry out the fundamental functions of life. Thus, the above statement is accurate.

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If mercury (ii) oxide is heated and decomposes, the product of the reaction be 4 Hg.

Mercury is a chemical element with the atomic number 80 and the symbol Hg. Formerly known as hydrargyrum and also known as quicksilver, In order to fragment anything into smaller pieces or to break it into smaller pieces, mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lights, and other devices: Methane and carbon dioxide are produced when microbes break down organic waste. staying fresh while decomposes The process of recycling nutrients that an organism (plant or animal) has utilized to develop its body begins with decomposes. It is the process by which the decomposing dead tissues transform into more basic organic forms. For a large number of the species at the base of ecosystems, these serve as a food supply.

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Answer:

It becomes negatively charged

Proton is positive, electron is negative and neutron is neutral

Explanation:

Answer:

If an atom gains one electron, it will have a negative one charge, or -1.

Electrons = Negative

Protons = Positive

Answer:

Option B. Only one of the compounds is an alkane

Explanation:

To know which option is wrong us, we simply determine the class to which each diagram belongs.

Diagram 1:

CH4 is called methane and it is a member of the alkane series which are saturated hydrocarbon.

Diagram 2:

CH3CH3 is called ethane and it is a member of the alkane series which are saturated hydrocarbon.

Diameter 3:

CH2=CH2 is called ethene and it is a member alkene series which are unsaturated hydrocarbon.

Diagram 4:

CH3CH2OH is called ethanol which is a member of the alcohol family. CH3CH2OH is also a saturated alcohol as it only contains single bonds.

From the above, we can see that:

1. Only one compound is alcohol i.e CH3CH2OH.

2. There are two members of the alkane series i.e CH4 and CH3CH3.

3. Only one compound is unsaturated i.e CH2=CH2. Unsaturated compound has one or more double bond.

4. Only three compounds are hydrocarbon i.e CH4, CH3CH3 and CH2=CH2. Hydrocarbons are compounds containg only carbon and hydrogen.

Therefore, option B is wrong as there are two members of the alkane present.

Answer:

transition metal

Explanation:

Answer:

Copper is a Transition metal.

Explanation:

Use the periodic table website! It tells you what kind of metals the elements are and if they are metals or nonmetals.

Website: ptable.com

The molecular formula of the compound CH2 with molar mass = 42.0 g/mol is C₃H₆. Therefore, option D is correct.

The term molar mass is defined as the mass in grams of one mole of a substance. The units of molar mass are grams per mole, abbreviated as g/mol.

First, let's find the molar mass of CH₂.

The molar mass CH₂= 12.0 + (2 x 1.01)

= 14.02 g/mol

Now to determine the molecular formula, we need to find the ratio based in the molar masses.

42 / 14.02

= 2.99

≅ 3

Therefore, the ratio is 3, the molecular formula is C₃H₆.

Thus, option D is correct.

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The formation of solid magnesium chloride (MgCl₂) by the reaction between chlorine gas (Cl₂) and magnesium metal (Mg) at high temperatures is classified as a synthesis reaction or a combination reaction.

Synthesis reactions involve the combination of two or more substances to form a single product. In this case, chlorine gas and magnesium metal combine to produce magnesium chloride as the sole product.

The balanced chemical equation for this synthesis reaction is:

Mg + Cl₂ ⇒ MgCl₂

Hence, the reaction between chlorine gas and magnesium metal to form solid magnesium chloride indicates a synthesis reaction, as the elements combine to form a compound.

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Answer:

the 3rd one

Explanation:

The balanced redox reaction in basic solution is: \(CIO(aq) + CO_2(aq) + OH^{-(aq)} \rightarrow CIO_2(g) + CO_2(g) + H_2O(l)\)

To balance this redox reaction in basic solution, we first need to identify the oxidation state of each element in the equation. We see that the oxidation state of chlorine changes from +1 to +4, while the oxidation state of carbon changes from +4 to +2.

Next, we balance the equation in acidic solution, as we normally would, and then add OH⁻ to both sides of the equation to neutralize the H⁺ ions and form water molecules. This adds an equal number of H⁺ and OH⁻ ions to both sides of the equation, so the charge balance is maintained.

After balancing the equation in basic solution, we make sure that the number of atoms of each element is the same on both sides, and that the charges are balanced. Finally, we add the phases of each species to complete the equation.

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Answer:

The final temperature of the water is 23.92°C.

Explanation:

Given that,

A heater in a hot water tank gives off 20,000 kJ per hour.  

For 1 hour or 60 minutes, heat is 20,000 kJ

For 90 minutes,

\(Q=\dfrac{20000}{60}\times 90\\Q=30000\ kJ\)

Mass, m = 450 kg or 450000 grams

Initial temperature, \(T_i=8^{\circ} C\)

We need to find the final temperature of the water. We know that the specific heat capacity of water is 4.186 J/g- °C

Heat is given by :

\(Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\T_f=\dfrac{Q}{mc}+T_i\\\\T_f=\dfrac{30000\times 10^3}{450000\times 4.186}+8\\\\T_f=23.92^{\circ} C\)

Hence, the final temperature of the water is 23.92°C.

Answer:

23.81%

Explanation:

The mass percent of a solution, also known as percentage by weight or w/w%, can be calculated using the formula:

mass percent = (mass of solute / mass of solution) x 100%

In this question;

Mass of solute (sugar) = 15g

Mass of solution (sugar + water) = 63g

Hence,

w/w% = 15/63 × 100

w/w% = 0.2381 × 100

w/w% = 23.81%

Therefore, the mass percent of the sugar solution is 23.81%.

Answer:

sodium ion

Explanation:

Carbon and silicon are located in group 14 (4A) on the periodic table but are different in that Carbon have 2 shells of electrons, and silicon has 3 shells of electrons.

The correct option is B.

The Periodic Table is a table that arranges the elements in the order of increasing atomic number.

The Periodic Table is divided into Periods and Groups.

The periods in the periodic table are the horizontal rows found in the periodic table. Elements in the same period have the same number of electron shells.

The groups in the periodic table are the vertical colums> Elements in the same group have the same number of outermost electrons.

Carbon and silicon belong to the same group but different periods in the periodic table.

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Answer:

Sugar (Sucrose), Corn Syrup (Glucose), Molasses (C6H12NNaO3S)

Explanation:

Each of these is a sweetener.

The Answer is:

C.carbon

Explanation:

a compound

and a medicine

Answer:

goodvsbad is correct:  a compound.

Explanation:

Answer:

(B) SECONDARY ALKYL HALIDE

The correct option is $26785.To calculate the total cost per equivalent unit using the weighted average method, we need to consider the costs incurred in both the beginning work in process and the units added during the period.

First, let's calculate the equivalent units of production for both conversion and materials:

Conversion costs:

Beginning work in process: 400 units × 20% complete = 80 equivalent units

Units added during the period: 2,000 units × 40% complete = 800 equivalent units

Total equivalent units for conversion = 80 + 800 = 880 equivalent units

Material costs:

Beginning work in process: 400 units × 30% complete = 120 equivalent units

Units added during the period: 2,000 units × 50% complete = 1,000 equivalent units

Total equivalent units for materials = 120 + 1,000 = 1,120 equivalent units

Next, let's calculate the total costs incurred:

Conversion costs:

Beginning work in process cost: $14,880

Costs added during the period: $409,200

Total conversion costs = $14,880 + $409,200 = $424,080

Material costs:

Beginning work in process cost: $9,900

Costs added during the period: $180,080

Total material costs = $9,900 + $180,080 = $189,980

Now, we can calculate the total cost per equivalent unit:

Total cost per equivalent unit = (Total conversion costs + Total material costs) / (Total equivalent units for conversion + Total equivalent units for materials)

Total cost per equivalent unit = ($424,080 + $189,980) / (880 + 1,120)

Total cost per equivalent unit ≈ $267.85

Therefore, the correct option is $26785.

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O₂

A limiting reactant is the reactant that runs out first in a reaction.

Oxygen

To find the limiting reactant, we can find how many reactions will occur with the given amount of reactant. To do this we can divide moles of the reactant by moles per reaction. If the reaction occurs 1 time, we say that 1 mol of reaction is created. So, the reactant that forms fewer moles of reaction is the limiting reactant.

This means that with 12 moles of oxygen, 1 full reaction will occur (1 mol of reaction).

Naphthalene (C₁₀H₈)

Now, we can do the same equation with Naphthalene. If it creates fewer moles of reaction, then it is the limiting reactant. If not, then oxygen is the limiting reactant.

This means that 1.1 moles of Naphthalene will create 1.1 mol of reaction.

Limiting Reactant

The math above shows that the amount of oxygen given will only create 1 mol of reaction, while the Naphthalene forms 1.1 mols of reaction. Thus, oxygen is the limiting reactant because it creates fewer moles of reaction.

Answer:

0.25L or 250Ml

Explanation:

I am not that good but as far as my calculations this must be the answer

The molecular formula for a compound that contains 69. 5% oxygen and 30. 5% nitrogen is N204.

The molecular formula expresses the number of atoms of each element in one chemical molecule.

The definition of a molecular formula is the formula that shows the exact number of atoms in a molecule.

The empirical formula is used to derive the Molecular Formula when the molar mass value is known.

n = empirical formula molar mass/mass

The molecular formula is frequently the same as or an exact multiple of an empirical formula.

Moles of oxygen = 69.5/16 = 4.34

Moles of nitrogen = 30.5/14 = 2.18

Ratio of moles of N and 0 = 2.18:4.34

Empirical formula = NO2

Molecular formula = (NO2)n

where n= Molecular mass/Empirical mass = 92/46 = 2

Therefore, the formula of the compound is N204.

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the pressure of the system when all the stopcocks are opened, assuming that the temperature remains constants 532.4 torr

for H₂, P₁ = 532 tor, V₁ = 0·5 Lt, V₂ = 2·5 L+, P₂ = Pu₂ = ? using P, V₁ = P₂ V2, 582-X 0.5 = p x 2.5, Ph2 = 106.4form. Now, according to botton's law total. pressure of the system is the summation. & partial pressure of all individual gases. P total = pn2 + pn2 + ph2 = (106 +220 + 106·4)= 532.4 torr. Pressure is defined as force per unit area of surface; the SI pressure measurement is the pascal (Pa), which is defined as one newton per square metre (N/m2). An object's pressure is proportional to the applied force it expends and inversely related to the area over which the force is exerted. In chemistry, the temperature of a substance is defined as the average velocity of all of its atoms or molecules. A substance's particles do not all have same kinetic energy. The kinetic energy of the particles can be depicted by a distribution at any given time.

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Answer:

The sample has high iron content.

Explanation:

Hope This Helps

Have A Great Day

~Zero~