Balance equation for Magnesium + Sulphuric acid = Magnesium sulphate + Hydrogen gas​

Answer:

A compound

Explanation:

A compound is formed when two elements combine together. Both sodium and fluorine are elements. These elements combine via the process of chemical bonding.

In this case, an ionic bond is formed between sodium and fluorine, this leads to the emergence of the compound sodium chloride, hence the answer above.

The waves that  has the greatest wavelength is Wavelength shown with 1 wavelength stretched over a long distance.

A wave could be a disturbance or variety that voyages through a medium or space, carrying vitality without transporting matter. Waves can take different shapes and happen totally different sorts of waves, counting mechanical waves and electromagnetic waves.

Mechanical waves require a medium to propagate, meaning they require a substance like water, discuss, or a strong fabric to transmit the wave. Illustrations of mechanical waves incorporate water waves, sound waves, and seismic waves. In these waves, particles of the medium sway or vibrate in a design, exchanging energy from one molecule to another.

Electromagnetic waves, on the other hand, don't require a medium and can travel through vacuum, such as in space. Electromagnetic waves comprise of electric and attractive areas swaying opposite to each other and to the heading of wave engendering. Illustrations of electromagnetic waves incorporate obvious light, radio waves, microwaves, infrared waves, bright waves, X-rays, and gamma beams.

Learn more about waves  below.

https://brainly.com/question/26116832

#SPJ1

When an electron moved from the ground state to the excited state it gained energy and passed to a high level of energy.

An electron shell is a layer of the electrons that contains a given amount of energy and may pass to higher levels by excitation which also read to change the orbital from the ground state to the excited state.

In conclusion, when an electron moved from the ground state to the excited state it gained energy and passed to a high level of energy.

Learn more about electron energy states here:

https://brainly.com/question/81112

#SPJ1

The positive value of 571.6 kJwhich is the enthalpy change tells us that it is exothermic

When energy is released into the surrounding area during a chemical reaction, it's considered an exothermic reaction with ΔH < 0. Conversely, endothermic reactions result from heat absorption with ΔH > 0.

The provided equation's positive value of 571.6 kJ reveals that heat is pouring out of the reaction, causing negative changes in enthalpy and firmly placing this chemical event as exothermic in nature.

Read more on exothermic reaction  here:https://brainly.com/question/2924714

#SPJ1

Ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)) mixture could be a useful buffer in a solution. Option C

A buffer is a solution that can resist changes in pH when small amounts of acid or base are added. It consists of a weak acid and its conjugate base or a weak base and its conjugate acid. The buffer system works by the principle of Le Chatelier's principle, where the equilibrium is shifted to counteract the changes caused by the addition of an acid or a base.

In option A, acetic acid (\(CH_3CO_2H\)) is a weak acid, but hydrochloric acid (HCl) is a strong acid. This combination does not form a buffer because HCl is completely dissociated in water and cannot provide a significant concentration of its conjugate base.

Option B consists of sodium hydroxide (NaOH), which is a strong base, and elemental sodium (Na), which is a metal. This combination does not form a buffer as there is no weak acid-base pair involved.

Option D contains acetic acid (\(CH_3CO_2H\)), a weak acid, and ammonia (\(NH_3\)), a weak base. Although they are weak acid and base, they do not form a buffer system together as they are both weak acids or bases and lack the required conjugate acid-base pair.

Option C, ammonia (\(NH_3\)), is a weak base, and ammonium chloride (\(NH_4Cl\)) is its conjugate acid. This combination can form a buffer system. When ammonia reacts with water, it forms ammonium ions (NH4+) and hydroxide ions (OH-).

The ammonium ions act as the weak acid, while the ammonia acts as the weak base. The addition of a small amount of acid will be counteracted by the ammonium ions, and the addition of a small amount of base will be counteracted by the ammonia, thus maintaining the pH of the solution relatively stable.

Therefore, option C, consisting of ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)), is the suitable mixture that could be a useful buffer in a solution.

For more such question on buffer visit:

https://brainly.com/question/13076037

#SPJ8

Answer:

When a system is at equilibrium, the process is not spontaneous at either direction.

Explanation:

The process is not spontaneous at either direction , when a system is at equilibrium  ΔG = 0, because -

We know that a negative ΔG indicates a forward-moving phase that is random.

We already know that a positive ΔG implies a non-spontaneous phase going forward.

Thus , here ΔG = 0, so the process is not spontaneous in either direction.

Stars form in large, dense regions of gas and dust known as molecular clouds. These clouds are located primarily in the spiral arms of galaxies, where they are exposed to intense radiation from nearby stars. As the gas and dust in these clouds are subjected to this radiation, they begin to collapse under their own gravity. As the collapse continues, the cloud becomes denser and denser, and eventually a protostar forms at its center. Over time, this protostar continues to contract and heat up, eventually reaching the point where nuclear fusion can begin in its core. At this point, the protostar becomes a fully-fledged star, and the process of star formation is complete.

TL;DR: Within the clouds of dust and scattered throughout most galaxies.

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

The standard enthalpy change for the reaction 2A+B⇌2C+2D is  664 kJ/mol and The heat that is absorbed when 3.70 mol of A reacts is 2456.8  J

The heat changes that take place as reactants combine to generate a product are measured by the enthalpy of a reaction.

The following formula can be used to determine the enthalpy change of a reaction:

Hess's law states that

Enthalpy of reaction =  product's enthalpy - the reactant's enthalpy.

Considering the given reaction: 2A + B ⇌ 2C + 2D  

Enthalpy of reaction =  product's enthalpy - the reactant's enthalpy.

Enthalpy of reaction (ΔH°f) = (2 C + 2 D) - (2 * A + B)

Enthalpy of reaction  (ΔH°f)  = {[2(223) + 2(-523)] - [2(-245) + 2(-387)]}

Enthalpy of reaction  (ΔH°f)  = 664 kJ/mol

ΔH = q ÷ n

ΔH = molar enthalpy (heat) of solution

q = amount of energy (heat) released or absorbed

n = moles of solute

so. q = ΔH xn

q = ΔH xn

q = 664 kJ/mol x 3.70 mol

Q= 2456.8  J

Learn more about enthalpy of reaction at:

brainly.com/question/14291557

#SPJ1

The symbol of the element being oxidized is Al (uppercase). In reactants, its oxidation state is 0, and in products, its oxidation state is +3. The symbol of the element being reduced is O (uppercase). In reactants, its oxidation state is 0, and in products, its oxidation state is -2. When balancing the reaction with the smallest integers (no fractions) the number of electrons that are being exchanged in the redox process is 24.

The unbalanced equation for the reaction is:

O₂ + Al -> Al₂O₃

To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. To do this, we can place a coefficient of 4 in front of Al on the left-hand side of the equation:

O₂ + 4Al -> 2Al₂O₃

Now the equation is balanced, and we can see that four aluminum atoms are being oxidized, each losing three electrons to form Al³⁺ ions, while six oxygen atoms are being reduced, each gaining two electrons to form O²⁻ ions. Therefore, the total number of electrons being exchanged in the redox process is,

4 x 3 + 6 x 2 = 24

To know more about aluminum, here

brainly.com/question/28830934

#SPJ4

Answer:

The number of protons determines an element's atomic number and is used to distinguish one element from another. The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess.

The ideal gas law equation is: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

To determine the mass of NaCl that reacted with F2 at 290 K and 1.5 atm, we can rearrange the equation as follows: n = PV/RT. Substituting in the values for P, V, R, and T, we get: n = (1.5 atm)(18.0 L)/(0.0821 atm*L/mol*K)(290 K) = 0.835 mol NaCl.

To determine the mass of sodium chloride that can react with the same volume of fluorine gas at STP (standard temperature and pressure), we would use the same equation but with the values for P, V, R, and T corresponding to STP. At STP, P = 0.987 atm, V = 18 L, R = 0.0821 atm*L/mol*K, and T = 273 K. Therefore, n = (0.987 atm)(18 L)/(0.0821 atm*L/mol*K)(273 K) = 0.792 mol NaCl.

What is Sodium chloride?

Sodium chloride, also known as table salt, is an ionic compound composed of sodium and chloride ions in equal proportions. It is a mineral found naturally in most bodies of water, including sea water, and is widely used as a seasoning and preservative in food.

To know more about sodium chloride,

https://brainly.com/question/28106660

#SPJ1

Answer:

The ideal gas law equation is: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

To determine the mass of NaCl that reacted with F2 at 290 K and 1.5 atm, we can rearrange the equation as follows: n = PV/RT. Substituting in the values for P, V, R, and T, we get: n = (1.5 atm)(18.0 L)/(0.0821 atm*L/mol*K)(290 K) = 0.835 mol NaCl.

To determine the mass of sodium chloride that can react with the same volume of fluorine gas at STP (standard temperature and pressure), we would use the same equation but with the values for P, V, R, and T corresponding to STP. At STP, P = 0.987 atm, V = 18 L, R = 0.0821 atm*L/mol*K, and T = 273 K. Therefore, n = (0.987 atm)(18 L)/(0.0821 atm*L/mol*K)(273 K) = 0.792 mol NaCl.

Explanation:

The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

Know more about    characteristic  here:

https://brainly.com/question/28790299

#SPJ8

The chunks of fluid magma that fall back to the surface to feed a lava flow can give rise to two different types of surfaces: rough and smooth.

A rough lava surface is often associated with a type of lava called 'aa' (pronounced "ah-ah"). Aa lava flows are characterized by a jagged and clumpy texture. This occurs because the chunks of magma, known as clinkers, are fragmented and accumulate on top of the flow. As the flow advances, the clinkers are pushed forward, creating a rough and uneven surface. Aa lava flows tend to be slower-moving and can be hazardous to walk on due to their rough texture.On the other hand, a smooth lava surface is typically associated with a type of lava known as 'pahoehoe' (pronounced "pah-hoy-hoy"). Pahoehoe lava flows are characterized by a smooth, undulating surface with a rope-like or ropy texture. The fluid magma of pahoehoe lava allows it to flow more freely, resulting in a surface that appears molten and smooth. Pahoehoe flows can travel greater distances compared to aa flows and are generally easier to traverse.The type of lava surface, whether rough or smooth, depends on various factors such as the viscosity of the magma, eruption style, and the rate of cooling during the lava flow.

for such more questions on fluid

https://brainly.com/question/30543213

#SPJ8

Brianne feels shocked and sad when she sees the wreckage in far rockaway.

This is referred to as a subjective point of view which is used to depict specific sensations based on different factors and circumstances. Examples of feelings include shock, excitement etc which denotes the state of mind of the individual.

In the incidence of a hurricane, she paid attention to the extent of the damaged situation. She watched the news and was in total shock as it narrated the destruction of places she loved and went to for various reasons which is therefore how she felts when she saw the wreckage.

Read more about Feeling here https://brainly.com/question/25437634

#SPJ1

Answer:

God will help you and has a plan for you. Please don't cheat or look up answers. I used to be like you but I stopped. God always has a plan for you! Just remember this. He loves you. Share the message

Explanation:

Answer:well your in collage so figure it and suck to be you

Explanation:

XD

The final temperature of the water is: T_final = 45.0°C

We can use the formula for the specific heat capacity of the water to solve this problem:

q = mcΔT

First, we can calculate the initial energy of the water:

q = mcΔT

q = (10.0 g) (4.184 J/g°C) (25.0°C)

q = 1,046 J

Next, we can calculate the final temperature after absorbing 840 J:

q = mcΔT

840 J = (10.0 g) (4.184 J/g°C) (ΔT)

ΔT = 20.0°C

Therefore, the final temperature of the water is:

T_final = T_initial + ΔT

T_final = 25.0°C + 20.0°C

T_final = 45.0°C

To know more about final temperature, here

brainly.com/question/11244611

#SPJ1

mass number = proton+neutron

mass number = 43+55 = 98

atomic number = proton = 43

charge = proton - electron = 43 - 39 = +4

symbol : ⁹⁸Tc⁺⁴

The hydrocarbon's molecular structure is \(C_9H_20\).The hydrocarbon's empirical formula is \(C_9\)/4H5.

To solve this problem, we need to use stoichiometry to relate the amount of \(CO__2\) and \(H_2O\) produced to the amount of \(CxHy\) burned.

(a) To find the molecular formula of the hydrocarbon, we need to first calculate the number of moles of \(CO__2\) and \(H_2O\) produced. From the ideal gas law, we know that 1 mole of gas at STP (standard temperature and pressure) occupies 22.4 L. Therefore, 4.032 L of \(CO__2\) at STP corresponds to:

4.032 L / 22.4 L/mol = 0.180 mol \(CO__2\)

Similarly, the mass of H2O produced corresponds to:
3.602 g / 18.02 g/mol = 0.200 mol \(H_2O\)

Since the hydrocarbon undergoes complete combustion, it reacts with oxygen to form \(CO__2\) and \(H_2O\) according to the balanced chemical equation:

\(CxHy\) + (x + (y/4))O2 → \(CO__2\) + (y/2)\(H_2O\)
where x and y are the coefficients of the balanced equation. We can use the stoichiometric ratios to set up two equations:

0.180 mol \(CO__2\) = x mol \(CxHy\) → x = 0.180 mol / 0.0200 mol = 9
0.200 mol \(H_2O\) = (y/2) mol \(CxHy\) → y = 0.400 mol / 0.0200 mol = 20

Therefore, the molecular formula of the hydrocarbon is \(C_9H_20\).
(b) To find the empirical formula of the hydrocarbon, we need to divide the subscripts by their greatest common factor. In this case, both subscripts are divisible by 4, so we get:

\(C_9H_20\) → C9/4H5
Therefore, the empirical formula of the hydrocarbon is C9/4H5.

For more question on molecular

https://brainly.com/question/24191825

#SPJ11

Based on the Law of Conservation of Mass, the mass of products form when baking soda decomposes is 168 g/mole.

Law of conservation of mass is defined as chemical reactions and physical changes cannot build or remove mass in an isolated system. The mass of the reactants and products in a chemical reaction must equal each other according to the law of conservation of mass.

\(\rm 2NaHCO_3 \rightarrow Na_2CO_3 + H_2O + CO_2\)

Mass of baking soda = 2 x molar mass

Molar mass of NaHCO₃ = 84.007 g/mole

Mass of baking soda = 2 x 84.007 g/mole

Mass of baking soda =  168.014 g/mole ≅ 168 g/mole

Thus, based on the Law of Conservation of Mass, the mass of products form when baking soda decomposes is 168 g/mole.

To learn more about Law of Conservation of Mass, refer to the link below:

https://brainly.com/question/28711001

#SPJ1

At 25C, the reaction's equilibrium constant (keq) is equal to 1.1 x 104. When conditions are balanced, the voltage falls to zero and the current stops.

Since G=0 at equilibrium, the measured potential at the concentration cell is zero, and the cell potential E cell is zero as well.

The connection between the equilibrium constant and cell potential. E°cell is therefore directly proportional to the equilibrium constant's logarithm. As a result, big positive values of E°cell and large equilibrium constants are equivalent.

To know more about equilibrium constant visit:-

https://brainly.com/question/10038290

#SPJ1

Answer:

Composition: All hydrocarbons are made up of only two types of atoms: carbon and hydrogen. They are like building blocks that contain carbon and hydrogen stuck together.

Organic Nature: Hydrocarbons are special because they are part of a group of compounds that come from living things or things that were once alive. They have carbon and hydrogen in them, which is what makes them different from other types of compounds.

Explanation:

Answer: Its A or D                                                        

wish i had an actual answer sorry..  

The correct answer should be A

Tthe initial temperature of the polystyrene sample is 39.4°C.

Given: Mass of polystyrene sample = 54.2 gSpecific heat of polystyrene = 1.880 J-g°CWater mass = 100.0 g Initial water temperature = 21.0°CWater final temperature = 34.3°CPressure remains constant at 1 atmFormula used:Heat gained by water = heat lost by polystyreneHence,Heat lost by polystyrene = Heat gained by water=> mcΔT = mcΔTwhere,m = mass of polystyrene or waterc = specific heat capacityΔT = change in temperatureThe temperature change is ΔT = 34.3°C - 21.0°C = 13.3°CNow we can use this temperature change to calculate the initial temperature of the polystyrene.Taking the water's specific heat capacity, c = 4.184 J/g°CHeat gained by water = (100.0 g)(4.184 J/g°C)(13.3°C) = 5574 JHeat lost by polystyrene = 5574 JTaking the polystyrene's specific heat capacity, c = 1.880 J/g° ) = 13.3°C Now let's calculate the mass of polystyrene using the specific heat capacity formula.5574 J = (54.2 g)(1.880 J/g°C)(13.3°C - Ti)Ti = 39.4°C

for more questions on polystyrene

https://brainly.com/question/15913091

#SPJ8

The average resting heart rate is between is 70- 75 bytes per minute. This include systolic pressure and diastolic pressure. Hence, option D is correct.

The count of heart beats per unit time is called heart rate.  For a normal condition at the resting time the average heart rate is 70 -75 beats per minute.

The heat beats we hear is the impulse from the open and closing of the heart valves. This includes the systolic and diastolic blood pressures. For a normal person at the systolic rate is 120 mm Hg and diastolic rate is 80 mm Hg.

The blood pressure rate is depends on the diet, inheritance and other factors such as age, physical activities, mental situations etc. For a normal person, the average resting heart rate is 70 - 75 bpm.

To find more on heart rate, refer here:

https://brainly.com/question/1155838

#SPJ2

Explanation:

\(\large{ \star \fcolorbox{magenta}{purple}{ \fcolorbox{magenta}{blue}{ \fcolorbox{magenta}{pink}{ \fcolorbox{magenta}{red}{ \sf{ 2.5g }}}}}} \star\)

The mass of TiC that can be produced is 2.06 g. The limiting reagent is Cl₂.

Calculate the moles of MnO₂

The molar mass of MnO₂ is 86.94 g/mol. So, the number of moles of MnO₂ is:

moles of MnO₂ = mass of MnO₂ / molar mass of MnO₂

= 8.00 g / 86.94 g/mol

= 0.0921 mol

Calculate the moles of HCl

The volume of the HCl solution is 15.0 mL. The density of the HCl solution is 1.13 g/mL. So, the mass of the HCl solution is:

mass of HCl solution = volume of HCl solution × density of HCl solution

= 15.0 mL × 1.13 g/mL

= 16.95 g

The mass of HCl in the solution is 36.4% of the mass of the solution. So, the mass of HCl is:

mass of HCl = 0.364 × mass of HCl solution

= 0.364 × 16.95 g

= 6.14 g

The molar mass of HCl is 36.5 g/mol. So, the number of moles of HCl is:

moles of HCl = mass of HCl / molar mass of HCl

= 6.14 g / 36.5 g/mol

= 0.167 mol

Calculate the moles of Cl₂ produced

The balanced equation for the reaction is:

2 MnO₂(s) + 4 HCl(aq) → 2 MnCl₂(aq) + 2 Cl₂(g)

For every 2 moles of MnO₂, 2 moles of Cl₂ are produced. So, the number of moles of Cl₂ produced is:

moles of Cl₂ = moles of MnO₂ / 2

= 0.0921 mol / 2

= 0.0460 mol

Calculate the moles of TiO₂

The mass of the sample that contains TiO₂ is 5.20 g. The TiO₂ content of the sample is 67.0%. So, the mass of TiO₂ in the sample is:

mass of TiO₂ = 0.670 × mass of sample

= 0.670 × 5.20 g

= 3.48 g

The molar mass of TiO₂ is 79.86 g/mol. So, the number of moles of TiO₂ is:

moles of TiO₂ = mass of TiO₂ / molar mass of TiO₂

= 3.48 g / 79.86 g/mol

= 0.0434 mol

Determine the limiting reagent

The moles of Cl₂ produced is less than the moles of TiO₂. So, Cl₂ is the limiting reagent.

Calculate the mass of TiC produced

The balanced equation for the reaction is:

TiO₂(s) + C(s) + Cl₂(g) → TiCl₄(g) + CO₂(g) + CO(g)

For every 1 mole of TiO₂, 1 mole of TiC is produced. So, the mass of TiC produced is:

mass of TiC = moles of TiO₂ × molar mass of TiC

= 0.0434 mol × 47.86 g/mol

= 2.06 g

Therefore, the mass of TiC that can be produced is 2.06 g and the limiting reagent is Cl₂.

Find out more on limiting reagent here: https://brainly.com/question/14222359

#SPJ1

Answer:

On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Explanation:

Make sure to edit so you don't get copy-writed.