what is the molecular formula of a compound with a molar mass of 30.08 g/mol and an empirical formula of ch3?

All the chemical equations of this question has been balanced for the  given observed reactions.

Equal numbers and types of each atom appear on both sides of balanced chemical equations. A balanced equation must have coefficients that are the simplest whole number ratio. Chemical reactions always conserve mass.

A. Ba(NO₃)₂+ Na₂CO₃ → BaCO₃ + 2NaNO₃

B. Ba₂⁺ + 2NO₃⁻ + 2Na⁺ +CO₃²⁻→ BaCO₃(s) +2Na⁺ +2NO³⁻

C. Net ionic equation-

   Ba²⁺(aq) + CO₃²⁻(aq)→ BaCO₃(s)

D. overall reaction-

   3Ba(NO₃)₂(aq) + 2Na₃PO₄→ Ba₃(PO₄)₂(s) + 6NaNO₃(aq)

E. Ionic equation-

   Ba(NO₃)₂(aq) + 2NaCl(aq)→ BaCl₂(aq) + 2NaNO₃(aq)

  ∴ No reaction

F- Ba(NO₃)₂(aq) + 2NaOH(aq) → Ba(OH)₂(aq) +2NaNO₃(aq)

 ∴No net ionic equation.

Thus, all equations are balanced above.

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Answer: Point nine six grams per mole which are often just written G / mo L and that's the molar mass or molecular weight for al2o3 aluminum oxide.

Explanation:

Answer:

A. Their numbers of atoms

Explanation:

Boyles's law is one of the gas laws that describe the relationship between the pressure and volume of a given mass of gas at a constant temperature.

According to Boyle's law, a gas's pressure is inversely proportional to its volume when the gas is of a certain mass and maintained at a constant temperature. In other words, as long as the temperature and volume of the gas remain constant, the relationship between a gas's pressure and volume is inverse.

The equation of Boyle's law is given below:

P₁V₁ = P₂V₂

where;

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Answer:

Double Displacement (Acid-Base)

Explanation:

Answer:

In 1912 Alfred Wegener (1880-1930) noticed the same thing and proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.

Explanation:

Answer:

1 unit

Explanation:

It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units.

1/12 * 12 = 1. I think so.

To calculate the heat released with combustion of methanol, we need to use the formula: q = m * c * ΔT, where q is the heat released, m is the mass of the water, c is the specific heat of water, and ΔT is the change in temperature.

Given that we have 626 grams of water and the change in temperature is 5.2 degree Celsius, we can substitute these values into the formula and get:

q = 626 g * 4.18 J/(g*C) * 5.2 C
q = 13,232.48 J

To convert this to kJ, we can divide by 1000:

q = 13.23 kJ

Therefore, the heat released with combustion of methanol is 13.23 kJ.

Combustion of methanol is an exothermic reaction, which means it releases heat. The heat released is used to raise the temperature of the water. This is known as the heat of combustion of methanol.

The heat of combustion of a substance is the amount of heat energy released when one mole of the substance is burned completely in oxygen. Methanol has a heat of combustion of -726 kJ/mol, which means that when one mole of methanol is burned completely, it releases 726 kJ of heat energy.

In this case, we did not use one mole of methanol, but rather a certain mass of water. However, we can still calculate the heat released using the mass of water and the change in temperature, as we did above.

Overall, calculating the heat released with combustion of methanol is important in understanding the energetics of this reaction and its potential applications in industries such as energy production and transportation.

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The mass of water, H₂O produced from the reaction is 72.06 g

We'll begin by calculating the mass of NH₄NO₃ that reacted and the mass of H₂O produced from the balanced equation.

NH₄NO₃ —> N₂O + 2H₂O

Molar mass of NH₄NO₃ = 80.03 g/mol

Mass of NH₄NO₃ from the balanced equation = 1 × 80.03 = 80.03 g

Molar mass of H₂O = 18.01 g/mol

Mass of H₂O from the balanced equation = 2 × 18.01 = 36.02 g

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O

Finally, we shall determine the mass of H₂O produced by the reaction of 160.1 g of NH₄NO₃.

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O.

Therefore,

160.1 g of NH₄NO₃ will react to produce = (160.1 × 36.02) / 80.03 = 72.06 g of H₂O.

Thus, the mass of water, H₂O produced from the reaction is 72.06 g

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Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

Sound is a form of energy. Sound moves through matter that is solid, liquid, and gas. In a vacuum sound cannot travel. In solids sound can travel more quickly as compared to liquid and gases because in solids molecules are closer together.

S-Waves are shear waves. These are the waves of high frequency and short wavelength. S- Waves can travel only through solid materials.

Thus from the above conclusion we can say that Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

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Answer:

body skin health

Explanation:

Answer:

The atom

Explanation:

Answer:

Calcium

Explanation:

The number of protons is the atomic number of the element. Number 20 on the periodic table is Calcium.

To determine the number of millimoles of HCl in 130 mL of a 10% solution, we need to calculate the amount of HCl in grams and then convert it to millimoles using the molecular weight.

First, let's find the amount of HCl in grams. The 10% solution means that 10 g of HCl is present in 100 mL of the solution. Therefore, in 130 mL, we can calculate the amount of HCl as (10 g/100 mL) * 130 mL = 13 g. Next, we convert the mass of HCl to millimoles using the molecular weight. The molecular weight of HCl is 36.5 g/mol. To convert grams to millimoles, we divide the mass by the molecular weight. So, (13 g) / (36.5 g/mol) = 0.356 millimoles. Therefore, there are approximately 0.356 millimoles of HCl in 130 mL of a 10% solution.

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Force = The external energy that changes or tends to change the state of any body or object is called force.

Speed = The rate of distance is called speed.

Answer:

Force is a push or pull which changes or tend to change the position of a body.

The rate of change its position with time or magnitude is called speed.

If an unseen cavity is in the metal bar that was used in your density determination it would lead to an error with an increase in volume.

Errors in chemical analysis result when there is a difference between observed value and the true value.If the magnitude of errors is large , it results in decrease in accuracy, reproducibility, and precision.

There are three types of errors:1) random error 2) systematic error 3) human error.The cause of random errors are difficult to quantify while the human errors can be minimized by taking a range of readings to reduce the error.

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The formula that represents an isomer of the compound is formula 1 which has the same molecular formula as the compound; C₃H₈O.

Isomerism is a phenomenon that occurs when two or more organic compounds have the same chemical formula but distinct properties because of variations in the atoms' arrangements in space or along the carbon skeleton.

Isomers are molecules or polyatomic ions that have the same number of atoms in each element and the same chemical formula but have different spatial configurations of those atoms.

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Answer:

Sulphur

Explanation:

Sulphur because we been 2 ag for 1 s therefore 0.312 S will need 0.624 of Ag

Ag is not the limiting reactant in this case. The limiting reactant is determined by the reactant that is completely consumed first, and in this case, it is S.

To determine the limiting reactant, we need to compare the moles of each reactant to the stoichiometric ratio of the balanced equation. The balanced equation for the reaction is:

2Ag(s) + S(s) →Ag₂S(s)

According to the balanced equation, the stoichiometric ratio between Ag and S is 2:1. This means that 2 moles of Ag react with 1 mole of S to produce 1 mole of Ag₂S.

Given:

Moles of Ag = 0.7 moles

Moles of S = 0.312 moles

To determine if Ag is the limiting reactant, we need to compare the moles of Ag to the stoichiometric ratio.

Moles of Ag / Stoichiometric coefficient of Ag = 0.7 moles / 2 = 0.35 moles

Comparing this value to the moles of S, we can see that 0.35 moles of Ag is less than 0.312 moles of S. Therefore, Ag is not the limiting reactant in this case. The limiting reactant is determined by the reactant that is completely consumed first, and in this case, it is S.

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A carbon tax refers to an environmental policy proposed as a viable response to the climate crisis, wherein those who emit greenhouse gases, specifically carbon dioxide, would be required to pay a tax.

The purpose of implementing a carbon tax is to discourage carbon dioxide emissions and incentivize the reduction of greenhouse gas emissions. By imposing a tax on carbon emissions, the policy aims to internalize the environmental costs associated with carbon dioxide pollution. This means that emitters would have to bear the financial burden of their emissions, reflecting the environmental damage caused by greenhouse gas emissions.

The tax provides an economic incentive for industries, businesses, and individuals to adopt cleaner and more sustainable practices, invest in renewable energy sources, improve energy efficiency, and reduce carbon emissions. It encourages the transition to low-carbon technologies and promotes a shift towards a more environmentally sustainable future.

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Answer:

its classified as a molecule

Answer:

The change from a liquid phase to a gaseous phase.

so the answer would be it changed to a gaseous phase

---------------

This is what occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.

Option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

The long-run equilibrium condition for perfect competition is that price (P) is equal to average total cost (ATC), which is also equal to marginal cost (MC), and marginal revenue (MR).

Option (d), P=ATC=MR=MC, best represents the long-run equilibrium condition for perfect competition. In perfect competition, firms operate at the minimum point of their average total cost curve, where price equals both average total cost and marginal cost. This condition ensures that firms are earning zero economic profit and are producing at an efficient level.

In the long run, if firms are earning economic profit, new firms will enter the market, increasing competition and driving prices down. Conversely, if firms are experiencing losses, some firms may exit the market, reducing competition and causing prices to rise. This process continues until firms reach a state where price equals average total cost, marginal cost, and marginal revenue, ensuring a long-run equilibrium.

Therefore, option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

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Answer:

A D F

Explanation:

look at attachment if you don't believe me

Answer:

Following are the responses to this question:

Explanation:

They can measure the spontaneity of the reaction with the form,\(\Delta G =\Delta H - T \Delta S\) Substituting the values of \(\Delta H, T,\ and \ \Delta S\) in the above expression information mostly on the playfulness of the reaction would be given to us from the expression above. This reaction is spontaneous if the price of \(\Delta G\) is negative, and if it is positive the response is not random. At equilibrium, the values of \(\Delta G, \Delta H, \ and \ \Delta S\) are 0.

The experiments which can be carried out to determine the spontaneity of a reaction is by calculating the Gibb's Free energy of the reaction.

Spontaneity of any chemical reaction tells about the ease or favor of the completion of that reaction towards the formation of products.

We carried out an experiment from which we can calculate the value of Gibb's Free energy, because for a spontaneous reaction its value should be negative and it will be calculated as:

ΔG = ΔH - TΔS, where

ΔH = change in enthalpy

ΔS = change in entropy

T = temperature

For any reaction at the equilibrium state value of ΔG should be 0, as in the equilibrium no change in enthalpy and entropy takes place.

Hence, by calculating the Gibb's free energy we determine the spontaneity.

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A diene with a melting point of 100°C would likely be suitable for a solvent-free Diels-Alder reaction.

The melting point of the diene itself is only one aspect to consider. In a solvent-free methodology, the reactants are typically heated to a high temperature to drive the reaction to completion. The high temperature helps to overcome any activation energy barriers and promotes the reaction between the reactants. In this case, a diene with a melting point of 100°C would likely be suitable for a solvent-free Diels-Alder reaction if it is also able to form a reactive intermediate with the appropriate geometry and stereochemistry for the reaction to occur. However, without further information about the specific reactants and conditions used, it is not possible to predict the outcome of the reaction with certainty.

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Answer:yup!!

Explanation:

Answer: 0.25 atm

Explanation: