Solid sodium bicarbonate is added to a solution of hydrochloric acid creating carbon
dioxide gas, water and an aqueous solution of sodium chloride. Complete balanced molecular equations.

Answer:

140 L

Explanation:

Step 1: Write the balanced equation

2 H₂(g) + O₂(g) → 2 H₂O(g)

Step 2: Calculate the moles corresponding to 100 g of oxygen

The molar mass of oxygen is 32.00 g/mol.

\(100g \times \frac{1mol}{32.00g} =3.13mol\)

Step 3: Calculate the moles of water vapor formed

The molar ratio of oxygen to water vapor is 1:2.

\(3.13molO_2 \times \frac{2molH_2O}{1molO_2} =6.26molH_2O\)

Step 4: Calculate the volume corresponding to 6.26 moles of water vapor

1 mole of any ideal gas under STP has a volume of 22.4 L.

\(6.26mol \times \frac{22.4L}{mol} =140 L\)

The equation for cellular respiration is in the given choices is option A. oxygen + sugar → carbon dioxide + water

Cellular respiratory is a chain of chemical reactions that smash down glucose to produce ATP, which may be used as power to energy many reactions throughout the body. There are 3 predominant steps of mobile respiratory: glycolysis, the citric acid cycle, and oxidative phosphorylation.

Cellular respiration is the process by the way which organic fuels are oxidized in the presence of an inorganic electron acceptor along with oxygen to provide massive quantities of power, to power the bulk manufacturing of ATP.

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the answer is  photosynthesis

Answer:

The mass of water is  14292.24 g

Explanation:

Given data:

Mass of cups and water = 142,99 g

Mass of cups = 6.76 g

Mass of water = ?

Solution:

Mass of cups + water = mass of cups + mass of water

Now we will rearrange the formula

mass of water = (Mass of cups + water) - mass of cups

Now we will put the values.

mass of water = 142,99 g + 6.76 g

mass of water = 14292.24 g

Thus mass of water is  14292.24 g.

Answer:

8.0g

Explanation:

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Answer:

Answe⁣r is i⁣n a phot⁣o. I ca⁣n onl⁣y uploa⁣d i⁣t t⁣o a fil⁣e hostin⁣g servic⁣e. lin⁣k belo⁣w!

Explanation:

Answer:

cointreau, tequila,lime juice

The equation  in the question is: H+H → H + H Complete the equation by filling in the missing parts. missing part is  1 → H+H-2 → →3 → He.

The atomic number of hydrogen is 1, which means it has only one proton in the nucleus and one electron in its shell. Two hydrogen atoms react with each other to form helium. Helium has 2 protons and 2 neutrons in its nucleus and two electrons in its shell. Therefore, the equation is:

H + H → HeIt can be seen that:1. H + H (Reactants)

2. → (Yields or Reacts to form)

3. He (Product)Therefore, the tiles will be arranged as shown below: 1 → H+H-2 → →3 → He

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Answer:

hope the inserted image will help :)

Explanation:

Answer:  Both are centered inside the nucleus.

Explanation: The characteristics between cells and chromosomes are that they both are centered inside the nucleus (which is a cell). This characteristic applies to both plant and animal cells.

a) The balanced chemical equation for the reaction is: 2H₂ + O₂ → 2H₂O

b) the number of moles of O₂ required is approximately 1.004 moles.

c)  approximately 45 liters of H₂ and 22.5 liters of O₂ are needed to obtain 45 liters of H₂O.

a) Balancing the chemical equation:

The balanced chemical equation for the reaction is: 2H₂ + O₂ → 2H₂O

b) Calculating the number of moles of the reactants needed to obtain 45 liters of H₂O:

From the balanced equation, we can see that for every 2 moles of H₂O produced, we need 2 moles of H₂ and 1 mole of O₂. Since the stoichiometry is based on moles, we need to convert the given volume of H2O into moles.

To convert volume to moles, we need to use the ideal gas law, PV = nRT. At standard temperature and pressure (STP), the molar volume of an ideal gas is 22.4 liters.

Given that we have 45 liters of H2O, we can calculate the number of moles as follows:

moles of H₂O = (volume of H₂O) / (molar volume at STP)

            = 45 liters / 22.4 liters/mol

            ≈ 2.008 moles of H₂O

Since the stoichiometry of the reaction is 2 moles of H₂O for every 2 moles of H₂, we need an equal number of moles of H₂. Therefore, the number of moles of H₂ required is also approximately 2.008 moles.

For O₂, since the stoichiometry is 1 mole of O₂ for every 2 moles of H₂O, we need half the number of moles of H₂O. Thus, the number of moles of O₂required is approximately 1.004 moles.

c)  the volume of the reactants:

Since the stoichiometry of the balanced equation is 2 moles of H₂for every 1 mole of O₂ and 2 moles of H₂O, we can deduce the volume of the reactants based on their molar volumes at STP.

For 2.008 moles of H₂, the volume can be calculated as follows:

volume of H₂= (moles of H₂) * (molar volume at STP)

            = 2.008 moles * 22.4 liters/mol

            ≈ 45 liters of H₂

For 1.004 moles of O₂, the volume can be calculated similarly:

volume of O₂= (moles of O₂) * (molar volume at STP)

            = 1.004 moles * 22.4 liters/mol

            ≈ 22.5 liters of O₂

Therefore, approximately 45 liters of H₂and 22.5 liters of O₂ are needed to obtain 45 liters of H₂O

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The scientific notation of  0.00212  is 2.12 × 10⁻³.

Scientific notation is a way of expressing numbers that might be too big or too small to be quite simply written in decimal shape. it is able to be known as clinical shape or popular index shape, or widespread shape within the united kingdom.

Scientific notation is a way of writing very large or very small numbers. various is written in medical notation whilst various among 1 and 10 is increased by means of electricity of 10. as an instance, 650,000,000 can be written in clinical notation as 6. five ✕ 10^eight.

The number one purpose for changing numbers into medical notation is to make calculations with unusually massive or small numbers less cumbersome. due to the fact zeros are now not used to set the decimal point, all of the digits in a variety of scientific notation are giant.

Calculation:-

Scientific notation of 0.00212 = 2.12 × 10⁻³

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The mass of the asteroid is C. 1.2 x \(10^{12}\) Kg

To find the mass of the other asteroid, we can rearrange the equation for the gravitational force between two objects:

F = (G * m1 * m2) / \(r^{2}\)

where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two asteroids, and r is the distance between them.

Given that the distance between the asteroids is 75000 m, the force of gravity between them is 1.14 N, and one asteroid has a mass of 8 x \(10^{7}\) kg, we can substitute these values into the equation and solve for the mass of the other asteroid (m2):

1.14 N = (6.67430 × \(10^{-11}\) N \(m^{2}\)/\(Kg^{2}\) * 8 x \(10^{7}\) kg * \(m2\)) / \((75000 m)^{2}\)

Simplifying and solving the equation, we find that the mass of the other asteroid (m2) is approximately 1.2 x \(10^{12}\) kg. Therefore, Option C is correct.

The question was incomplete. find the full content below:

Two asteroids are 75000 m apart one has a mass of 8 x \(10^{7}\) kg if the force of gravity between them is 1.14 what is the mass of the asteroid

A. 3.4 x \(10^{11}\) kg

B. 8.3 x \(10^{12}\) kg

C. 1.2 x \(10^{12}\) kg

D. 1.2 x \(10^{10}\) kg

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Answer:

the evidence statement contains reasoning.

Explanation:

the reason that this piece of information is reasoning rather than evidence is because it doesn't tell us the temperatures of the other substances (if any.) if we look at this substance and it has the most constant temperature compared to the others, how will we know if it is the most constant if we don't know the other substances' data?

this is reasoning because the evidence should tell us more about the substance and the others.

Answer:80.8g

Explanation:

 = . / ()

Answer:

see below

Explanation:

A. The given reaction releases energy, indicating that it is an exothermic reaction.

B. The △H value for the reaction can be written as △H = -571.7 kJ, with a negative sign indicating the energy is released.

C. The balanced equation for the reaction between hydrogen and oxygen to form water is:

2H2(g) + O2(g) → 2H2O(l)

D. To calculate the amount of energy released when 10.0g of hydrogen is reacted with an excess of oxygen, we need to first determine the amount of hydrogen involved in the reaction.

The molar mass of hydrogen is 1.008 g/mol, so 10.0 g of hydrogen is equivalent to 10.0 g / 1.008 g/mol = 9.92 mol of hydrogen.

From the balanced equation, we can see that 2 mol of hydrogen is required for every 1 mol of oxygen, so the amount of oxygen involved in the reaction is twice the amount of hydrogen.

Therefore, the amount of oxygen needed for 9.92 mol of hydrogen is 2 × 9.92 mol = 19.84 mol.

Assuming that there is an excess of oxygen, all of the hydrogen will react, so the limiting reactant is oxygen.

Using the △H value of -571.7 kJ, we can calculate the amount of energy released as follows:

-571.7 kJ / 2 mol H2 = -285.9 kJ/mol H2

So the energy released when 10.0 g of hydrogen reacts with an excess of oxygen is:

-285.9 kJ/mol H2 × 9.92 mol H2 = -2836.53 kJ

Therefore, the reaction releases 2836.53 kJ of energy when 10.0 g of hydrogen reacts with an excess of oxygen.

According to the solubility of  of sparingly soluble electrolytes by conductometer and potentiometer.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.It can also be determined for electrolytes.

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The number of photons is obtained from the calculation as 1.68 * 10^19 photons.

By definition, we know that energy is the ability to do work. Now we know that we have the wavelength of the radiation can be seen from the question and the values that are given to be 3.80 x 10-8 m.

Then energy = hc/λ

h = Plank's constant

c = speed of light

λ = wavelength

E = 6.6 * 10^-34 * 3 * 10^8/ 3.80 x 10^-8

E = 5.2 * 10^-18 J

Energy of the water = mcdT

= 4.48 * 4.2 * 4.65 = 87.5 J

Number of photons required =  87.5 J/5.2 * 10^-18 J

= 1.68 * 10^19 photons

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Answer: The energy of an electron in the n = 2 level of a hydrogen atom is 3.40 eV.

Explanation:

Given: n = 2

The relation between energy and \(n^{th}\) orbit of an atom is as follows.

\(E = - \frac{13.6}{n^{2}} eV\)

Substitute the values into above formula as follows.

\(E = - \frac{13.6}{n^{2}} eV\\= - \frac{13.6}{(2)^{2}}\\= - 3.40 eV\)

The negative sign indicates that energy is being released.

Thus, we can conclude that the energy of an electron in the n = 2 level of a hydrogen atom is 3.40 eV.

Answer:

Explanation:

The treatment of aldehyde or ketone in the presence of acetic acid with one mole of bromine results in ∝-halo aldehyde or ketone. However, the bromination of ketone undergoes acidic conditions. Hence, the reaction of the ketone with Bromine resulting in the Major Product is shown in the image attached below.

Answer:

(a) Cr3+ and Br- will form CrBr3 (chromium(III) bromide)

(b) Fe3+ and O2- will form Fe2O3 (iron(III) oxide)

(c) Hg22+ and CO32- will form Hg2CO3 (mercury(I) carbonate)

(d) Ca2+ and ClO3- will form Ca(ClO3)2 (calcium chlorate)

(e) NH4+ and PO43- will form (NH4)3PO4 (ammonium phosphate)

Explanation:

chatGPT

The chemical formulas for the compounds formed by the given pairs of ions are: (a) CrBr3, (b) Fe2O3, (c) Hg2(CO3)2, (d) Ca(ClO3)2, and (e) (NH4)3PO4.

(a) Cr3+ and Br- : In order to form a neutral compound, the charges of the ions must balance. The charge of Cr3+ is 3+ and the charge of Br- is 1-. To balance the charges, we need three Br- ions for every Cr3+ ion. Therefore, the chemical formula is CrBr3.

(b) Fe3+ and O2- : The charge of Fe3+ is 3+ and the charge of O2- is 2-. To balance the charges, we need two O2- ions for every Fe3+ ion. Therefore, the chemical formula is Fe2O3.

(c) Hg22+ and CO2- : The charge of Hg22+ is 2+ and the charge of CO2- is 2-. The charges are already balanced, so no extra ions are needed. Therefore, the chemical formula is Hg2(CO3)2.

(d) Ca2+ and ClO3- : The charge of Ca2+ is 2+ and the charge of ClO3- is 1-. To balance the charges, we need two ClO3- ions for every Ca2+ ion. Therefore, the chemical formula is Ca(ClO3)2.

(e) NH4+ and PO3- : The charge of NH4+ is 1+ and the charge of PO3- is 3-. To balance the charges, we need three NH4+ ions for every PO3- ion. Therefore, the chemical formula is (NH4)3PO4.

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Answer:

_ NH4NO3 -> _ N2O + 2 H2O

Explanation:

By having 2 water molecules, we reach the 4 H atoms and 3 O atoms that are present on the left side. We don't add any other coefficients because we already have enough N atoms and we don't have to manipulate the left side at all.

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

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Answer:

A liquid that evaporates rapidly at low temperatures

Explanation:

Answer:

A liquid that evaporates rapidly at low temperatures.

Explanation:

A volatile liquid such as gasoline evaporates easily. Its chemicals aren't held together as strongly, and room temperature is often enough to break intermolecular bonds and evaporate them. 

PF

The products of the alpha decay of radium-226 and the beta decay of carbon-14 are radon-222 and nitrogen-14, respectively.

The alpha decay of radium-226 results in the emission of an alpha particle, which is a helium nucleus consisting of two protons and two neutrons.

Therefore, the product of the alpha decay of radium-226 is radon-222:

Ra-226 → Rn-222 + alpha particle

On the other hand, In the case of carbon-14, beta minus decay occurs, in which a neutron is converted into a proton, and an electron and an antineutrino are emitted.

So carbon-14 becomes nitrogen-14:

C-14 → N-14 + beta particle

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--The complete Question is, What is the product of the alpha decay of radium-226 and the beta decay of carbon-14?--

A hypothesis is a proposed explanation or prediction based on limited evidence or observations, which can be tested through further investigation or experimentation. It should be specific, testable, and based on existing knowledge.

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Answer:

Follows are the solution to these question:

Explanation:

Given equation:

\(N_2+3H_2 \longrightarrow 2NH_3\)

In this equation:

\(1 N_2\) gives \(= 2NH_3\)

so,

\(3N_2\) gives=  \(2 \times 3 = 6 NH_3\)

similarly:

\(3H_2\) gives \(= 2NH_3\)

So, \(6H_2\) gives = \(\frac{2}{3}\times 6=4NH_3\)

Its limited reagent is =\(N_2\)

The amount of \(NH_3\) molecules were formed = 4.

and the amount of  \(H_2\) excess molecules are= 1

When molecules collide, there is generally a delay before an explosion occurs, if an explosion occurs at all. This is because an explosion requires a chemical reaction to take place, which involves the breaking of chemical bonds and the formation of new bonds. These reactions require a certain amount of energy, which is called the activation energy.

The collision of molecules can provide energy to the system, but it is not always enough to overcome the activation energy needed for a chemical reaction to occur. If the energy of the collision is less than the activation energy, no reaction will occur and there will be no explosion. If the energy of the collision is equal to or greater than the activation energy, a chemical reaction may occur and an explosion may result.

The time delay between the collision of molecules and an explosion occurring depends on the nature of the molecules and the conditions under which the collision occurs. Some chemical reactions are very fast and can occur almost instantly, while others may take longer to reach the activation energy and proceed to completion.

It's worth noting that not all collisions between molecules result in an explosion. In many cases, the collision may simply transfer energy from one molecule to another without leading to a chemical reaction.

Answer:   3 mol oxygen.

Explanation:       Because by definition you have 1 mol of potassium nitrate. Potassium nitrate in this quantity comprises 1 mol K, 1 mol N,