104 Equilibrium Constant 2
The toxic gas phosgene decomposes to a limited extent to carbon monoxide and chlorine at a certain temperature T K
according to the following equation:
COCI₂(g) CO(g) + Cl₂(g)
The equilibrium constant, Kc, is 0.00045 at this temperature.
What is the equilibrium constant for the reverse reaction?
Give your answer with 2 significant figures in the exponential form, for example, 1.5e3 for 1500.

Answer:

hi I'm alvin and it's d

Explanation:

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Answer:

Use of fertilizers :Increase in population of aquatic animals.

Answer: its D.

Explanation: because metal is a conductor hope it helps :>

because it's provide insight into the chemical behaviour of elements by helping determine the valence electrons of an atom

that's my answer

G. Empty space

Hope this helps!

The Ksp of the compound CaF2 is given as; Ksp = [Ca2+] [F]²

The term solubility product has to do with the extent to which a substance dissolves in solution.

For the compound CaF2, we have; CaF2(s) ⇆Ca^2+(aq) + 2F^-(aq). Hence, the Ksp of the solution is  Ksp = [Ca2+] [F]²

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Answer:

B. Spectator ions

Explanation:

Spectator ions are described as spectators literally because they "spectate", or, in other words, do not participate in the overall reaction. They may show up in the reaction equation, but they don't react themselves.

Thus, spectator ions stay unchanged throughout a reaction. We see many spectator ions in precipitation reactions. Remember that ionic compounds disassociate in solution.

For example, the reaction between silver nitrate [tex]AgNO_{3}[/tex] and sodium chloride [tex]NaCl[/tex] produces a solid precipitate of silver chloride [tex]AgCl[/tex] as represented by the equation below:

[tex]Ag^+_{(aq)} + NO^-_{3(aq)}+Na^+_{(aq)}+Cl^-_{(aq)}[/tex] -------> [tex]AgCl_{(s)}+Na^+_{(aq)}+NO_{3(aq)}^-[/tex]

However, the sodium and nitrate ions remained aqueous, like before, so they did not react. Thus, they are spectator ions.

Answer:

square boxes

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Explanation:

if you like my answer

Answer:

24 atm

Explanation:

From Boyle's Law :

Given values :

Solving

New volume

So apply Boyles law

Answer:

Strong acids. hope this helps :)

Answer:

Is drinks a compound or mixture?

Drinks are usually solutions of various substances dissolved in the water. Since the amount of each of these can vary (sugar, flavoring, color, carbonation), it’s a mixture. The components can be separated by various physical methods such as evaporation. Is smoke a compound or a mixture? Smoke is a mixture.

Grams are the unit of measurement of the mass or the weight of the substance. There are 1.17 gms of chlorine atoms in the sample.

The mass of the substance is the multiplication of the moles and the molar mass.

Barium chloride dissociates as:

BaCl₂ ⇄  Ba²⁺ + 2 Cl⁻

From the reaction, it can be said that 1 mole of barium chloride dissociates into 1-mole barium ion and 2 moles of chloride ions.

Moles of barium chloride are calculated as:

Moles = mass ÷ molar mass

= 3.45 gm ÷ 208.23 g/mol

= 0.016 moles

If 1 mole of Barium chloride has 2 moles then 0.016 moles of the sample will have, 0.0331 moles of chloride ions.

The mass of chlorine atoms is calculated as:

Mass = moles × molar mass

= 0.0331 × 35.45

= 1.17 gms

Therefore, 1.17 gms of chlorine atoms are present in barium chloride.

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Answer:

Answers are below !

Explanation:

8) A) Potential Energy

9) B) Gaining Kinetic Energy

10) B) Kinetic Energy

11) A) Gaining Potential Energy

Answer:

See below ~

Explanation:

From The Ideal Gas Equation,

Therefore,

I think that when the temperature decreases, the pressure will decrease. When things are cooled, pressure decreases.

Answer:

: The conductivity of electrolyte solutions: (a) 0.1 M NaCl (b) 0.05 M NaCl (c) 0.1 M HgCl2. An electrolyte solution conducts electricity because of the movement of ions in the solution (see above). The larger the concentration of ions, the better the solutions conducts. Weak electrolytes, such as HgCl2, conduct badly because they produce few ions when dissolved (low concentration of ions) and exist mainly in the form of molecules.

Explanation:

Answer:

that is your answer hope this helps u

Answer:

well it is because of mainly what we call reaction the petrol are highly reactive with the flames

Answer:

A model of a shopping centre is drawn to scale where 1 cm on the model represent 4 m on the ground. Music shop Thabo's Sports Ware Fati's Clothing shop Grocery store PARKING Coffee shop Toilets Restaurant Shoe store Physiotherapy Health and Fitness center 1.1 Which shop is on the right of the physiotherapy? (2) 1.2 Describe the position of the Coffee Shop in relation to the Toilets. (2)

Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

Atoms are composed of a cloud of electrons surrounding a dense nucleus that is 100,000 times smaller and comprised of protons and neutrons.

The number of protons(i.e., atomic number, "Z") determines the element.

Isotopes are atoms of the same element that have the same number of protons (i.e., atomic number, "Z") but a different number of neutrons, meaning that their mass number, "A", varies.

Naturally occurring zirconium (⁴⁰Zr) is composed of four stable isotopes

One very long-lived radio isotope (⁹⁶Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×10¹⁹ years

The second most stable radioisotope is ⁹³Zr, which has a half-life of 1.53 million years.

Thirty other radioisotopes have been observed.

All have half-lives less than a day except for ⁹⁵Zr (64.02 days), ⁸⁸Zr (83.4 days), and ⁸⁹Zr (78.41 hours).

The primary decay mode is electron capture for isotopes lighter than ⁹²Zr

and the primary mode for heavier isotopes is beta decay.

Therefore Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

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Molarity is the molar concentration of the solution with respect to the moles and the volume. The molarity of the magnesium ion will be 0.339 M, and the Bromium ion will be 0.678M.

Molarity is the proportion of the moles of the solute to the volume in liters of the solution present. The compound magnesium bromide completely dissociates as:

MgBr² ⇆  Mg⁺² + 2Br⁻

The molarity of the magnesium ion will be equal to the M of the magnesium bromide and hence, will be 0.339 M.

The molarity of the bromide ions will be equal to two times the M of the magnesium bromide species and hence is 0.678 M.

Therefore, the molarity of the magnesium ion will be 0.339 M, and the Bromium ion will be 0.678M.

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The difference between the outer covering of plants and animals is that plant cell has cellulose cell wall while animal cell is surrounded by a cell membrane

A cell is the structural and functional unit of an organism which is capable of existing alone as it contains organelles that perform specific functions.

The plant cell is covered by a rigid cell wall which contains cellulose as its outer covering.

The animal cell contains not cellulose cell wall at its out covering but instead it is covered by a cell membrane.

Therefore, the difference between the outer covering of plants and animals is that plant cell has cellulose cell wall while animal cell is surrounded by a cell membrane.

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Answer:

A

Explanation:

Took the test

The three classes of lever include first, second and third class lever.

Levers are simple type of machine that are used to transfer the force used to lift a load.

Examples of lever include the following:

Therefore, the three classes of lever include first, second and third class lever.

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That's because the solubility

Higher the solubility higher the temperature

Lower the temperature lower the solubility

So

Less temperature makes enzymes work faster

Answer:

The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.

Explanation:

hope this helps

Answer:

Co^2 blood or the scientific way to say it oxygen-poor blood

Explanation:

Answer:

Increase of pressure increases the coordination number during crystallization e.g. by applying pressure the NaCl type crystal structure having 6:6 coordination number changes to CsCl type crystal having coordination number 8:8.

welc!! you Σ=)

Answer:

3.711 L

Explanation:

The formula you need to use is the following:

[tex]\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\[/tex]

3.4L / 298 K = V2 / 273 K

V2 = 3.711 L

Answer:

an organic compound made by replacing the hydrogen of an acid by an alkyl or other organic group. Many naturally occurring fats and essential oils are esters of fatty acids

Explanation:

ester, any of a class of organic compounds that react with water to produce alcohols and organic or inorganic acids. Esters derived from carboxylic acids are the most common. The term ester was introduced in the first half of the 19th century by German chemist Leopold Gmelin

Answer:

C

Explanation:

The units of specific heat are usually calories or joules per gram per Celsius degree. For example, the specific heat of water is 1 calorie (or 4.186 joules) per gram per Celsius degree. The Scottish scientist Joseph Black, in the 18th century, noticed that equal masses of different substances needed different amounts of heat to raise them through the same temperature interval, and, from this observation, he founded the concept of specific heat. In the early 19th century the French physicists Pierre-Louis Dulong and Alexis-Thérèse Petit demonstrated that measurements of specific heats of substances allow calculation of their atomic weights (see Dulong-Petit law). See also heat capacity.

The statement that represents the quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius is Specific heat capacity. The correct option is C.

When the temperature of a material rises 1 K (or 1 °C), the amount of heat (J) is absorbed per unit mass (kg). It is crucial since it will show how much energy will be needed to warm or cool an object of a certain mass by a certain amount.

The formula of specific heat capacity is [tex]Q=mc\Delta T[/tex]  Where q is the specific heat, m is the mass and t is the change in temperature.

According to the definition, a material's specific heat capacity is normally calculated by calculating the heat capacity of an illustration of the substance, commonly using a calorimeter, and dividing by the sample's mass.

Thus, the correct option is C. Specific heat capacity.

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