What is the boiling point in °C of a 3.6 molal solution of calcium chloride in water?

Answer:

Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.

Explanation:

Answer:

PORS U N DISOLVENTE ELAGA YU E LAZUCR UAE SOLN TOU

Explanation:

Answer: B I think, I'll put my reasoning below.

Explanation:

It's not A because removing N2 would only shift the equation the opposite way.

It's not C and D because I don't think those affect the specific amount of each reactant/product produced. I think temperature only affects the speed at which the reaction is performed, which won't affect anything in this case.

Removing the ammonia as it forms is the correct answer to produce the maximum possible NH₃.

It is an industrial process for manufacturing ammonia by reaction of nitrogen with hydrogen.

N₂+3H₂ ⇌ 2NH₃

The reaction is reversible and exothermic

To answer this question we will consider all the options and answer

Option D ) Increasing Temperature

Haber's process requires an optimal temperature of 450°C ,on Increasing temperature the yield of ammonia gets slow down.

Option C) Decreasing Pressure

Haber's Process requires high pressure to drive the reaction , higher the pressure more is the yield.

Option A ) Removing the N₂ as it forms , on removing  N₂ the reaction will drive on the reverse side hence low yield of NH₃ .

Option B) Removing the NH₃ as it forms , this can actually increase the yield as removing the ammonia will lead to shift the equilibrium and therefore increasing the yield.

Therefore Option B ,  Removing the ammonia (NH₃) as it forms is the correct answer to produce the maximum possible NH₃.

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Answer:

6 moles

Explanation:

hope this helps:)

Answer:

When vinegar and baking soda are combined a mixture is produced which is carbon dioxide. A gas is released.

Explanation:

Answer:

c

Explanation:

Answer:

Most solids in solution exhibit a general trend of increasing solubility with increasing temperature.

A seed crystal may be added to a supersaturated solution to precipitate excess solute.

Explanation:

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions(Lumen Learning).

When a seed crystal is added to a supersaturated solution, excess solute begin to precipitate because  the seed crystal now furnishes the required nucleation site where the excess dissolved crystals now begin to grow.

Answer: MCCCMC

Please. Mark as brainliest

Answer:

BACKBONEEEE

Explanation:

Answer:

the answer would be backbone

Explanation:

zebras don't have claws and lions don't have hooves. Finally, hair isn't an internal structure. the correct answer is backbone.

Answer:

b. the reaction slows down over time as the reactants get used up

Explanation:

just took the test, i hope this helps!!

make sure to take care of yourself :]

The statement " the reaction shows down over time as the reactant get used up." explains how the rate of reaction changes over time.

The rate of reaction is defined as the ratio of the increase in product concentration per unit time to the decrease in reactant concentration per unit time. The rate of reaction varies greatly.

The rate of a particular chemical reaction is calculated by dividing the rate of change in a reactant's or product's concentration by the coefficient from the given balanced equation.

Reactions are defined as the change of a chemical substance into an innovative substance through the formation and breaking of bonds among distinct atoms.

It can be seen that with the concentration, the rate of decomposition is also decreased. Generally, it is found that as per hour concentration and rate of decomposition decreases as well.

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Answer:

aajajjajajajajajajajajdsjsjjx jajajjajajajajaisjn

Explanation:

Answer:

2000 (km)

Explanation:

:)

Answer:

I think the answer is A. 1.98 x 10^2 g

Answer:

rough surface

Explanation:

Diffuse reflection occurs when parallel light waves strike a rough surface

Answer:

Rippling fountain

Explanation:

Answer:

ALL of these are factors in conservation.

Explanation:

Answer:

my network was gone so I cant

Answer:

Diatomic. molecule

hope it helps

and yr day will be full of happiness

Answer: Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. ... This energy is usually in the form of low-level thermal energy. Here, low-level means that the temperature associated with the thermal energy is close to that of the environment. hope this helps. Can u pls give me brainliest

Explanation:

Answer:

the particles move faster

Explanation:

when the temperature of matter increases the particles move faster as they gain kinetic energy

Answer:

b tissues,cells,organs,organ system,organisms,populations

Tissues, Cells, Organs, Organ Systems, Organsims, Population. the correct answer is B

Answer:

110 g

Explanation:

Step 1: Write the balanced equation for the decomposition of calcium carbonate

CaCO₃(s) ⇒ CaO(s) + CO₂(g)

Step 2: Convert 260.0 °C to Kelvin

We will use the following expression.

K = °C + 273.15 = 260.0 + 273.15 = 533.2 K

Step 3: Calculate the moles of CO₂ produced

We will use the ideal gas equation.

P × V = n × R × T

n = P × V/R × T = 1 atm × 48.0 L/0.0821 atm.L/mol.K × 533.2 K = 1.10 mol

Step 4: Calculate the moles of CaCO₃ that reacted to produce 1.10 moles of CO₂

The molar ratio of CaCO₃ to CO₂ is 1:1. The moles of CaCO₃ that reacted are 1/1 × 1.10 mol = 1.10 mol.

Step 5: Calculate the mass corresponding to 1.10 moles of CaCO₃

The molar mass of CaCO₃ is 100.09 g/mol.

1.10 mol × 100.09 g/mol = 110 g

The option A describes an exothermic reaction.

i.e, ΔHt,reactant > ΔHt, product

The reaction in which energy is release during the formation of reaction is called exothermic reaction.

Mathematically,

ΔHf = ΔH(product) - ΔH(reactant)

For exothermic reaction, ΔHt,reactant > ΔHt, product

So,for exothermic reaction, ΔHf is negative.

Where,

ΔHf = Enthalpy of formation of reaction

ΔH(product) = enthalpy of formation of product

ΔH(reactant) = enthalpy of formation of reactant

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Answer:

Explanation:

An atom on a face is shared by two unit cells, so only half of the atom belongs to each of these cells. An atom on an edge is shared by four unit cells, and an atom on a corner is shared by eight unit cells.

Answer:

52.2 g

Explanation:

Step 1: Write the balanced equation

3 KOH + H₃PO₄ ⟶ K₃PO₄ + 3 H₂O

Step 2: Calculate the moles corresponding to 89.7 g of KOH

The molar mass of KOH is 56.11 g/mol.

89.7 g × 1 mol/56.11 g = 1.60 mol

Step 3: Calculate the moles of H₃PO₄ needed to react with 1.60 moles of KOH

The molar ratio of KOH to H₃PO₄ is 3:1. The moles of H₃PO₄ needed are 1/3 × 1.60 mol = 0.533 mol.

Step 4: Calculate the mass corresponding to 0.533 moles of H₃PO₄

The molar mass of H₃PO₄ is 97.99 g/mol.

0.533 mol × 97.99 g/mol = 52.2 g

Answer:

a silly

Explanation:

Answer:

Option D. Carbon monoxide, 4.56 Moles

Explanation:

The balanced equation for the reaction is given below:

Fe₂O₃ + 3CO —> 2Fe + 3CO₂

From the balanced equation above,

1 mole of Fe₂O₃ reacted with 3 moles of CO to produce 3 moles of CO₂.

1. Determination of the limiting reactant.

From the balanced equation above,

1 mole of Fe₂O₃ reacted with 3 moles of CO.

Therefore, 2.54 moles of Fe₂O₃ will react with = 2.54 × 3 = 7.62 moles of CO.

From the calculation made above, we can see that it will take higher amount of CO (i.e 7.62 moles) than what was given (i.e 4.56 moles) to react completely with 2.54 moles of Fe₂O₃. Therefore, CO is the limiting reactant and Fe₂O₃ is the excess reactant.

2. Determination of the maximum amount of carbon dioxide CO₂ produced.

In this case, the limiting reactant will be used since all of it is consumed by reaction.

The limiting reactant is CO and the maximum amount of CO₂ produced can be obtained as follow:

From the balanced equation above,

3 moles of CO reacted to produce 3 moles of CO₂.

Therefore, 4.56 moles of CO will also react to produce 4.56 moles of CO₂.

Thus, the maximum amount of CO₂ produced is 4.56 moles

Summary:

Limiting reactant => carbon monoxide, CO

Maximum amount of carbon dioxide, CO₂ produced = 4.56 moles

Thus, option D gives the correct answer to the question.

Answer:

The correct answer is that it is made of atoms that are covalently bonded together.

Explanation:

Hope this helped Mark BRAINLEST!!!

Answer:

Four electrons are bounded by eight electrons

and the bond order = 4/3

Explanation:

The molecular ion has 24 valence electrons and The SN of N in the central of the structure is = 3 according to VSEPR Theory. and  this depicts trigonal planar geometry about the central nitrogen also this corresponds to sp^2 hybridization of the valence orbital of the atom N.

The 6 valence electrons are shared between N and O's, while the 2p orbital of Nitrogen will combine with the 2p orbital on each oxygen atoms in order to form four (4) π molecular orbitals. the binding orbital is occupied by a pair of electrons. Four electrons are bounded by eight electrons

and the bond order = 4/3

Attached below is the Lewis structure and resonance structures of the ion ( NO^- 3 )