What is the relationship between the solubility in water, s, and the solubility product, Ksp for mercury(I) chloride? Hint: mercury(I) exists as the dimer a. Hg22+ Ksp= 4s3 b. Ksp= 3s c. Ksp = 16s4 d. Ksp =2s3 e. Ksp= s2

H2O, NH and CO are likely to form a low-spin octahedral complex with iron (III). (option a,d,f)

H20 is an intermediate field ligand which can donate only through sigma bonding. It acts as a strong ligand when the metal is in +3 oxidation state. OH is a weak field ligand. OCH is a bridging ligand. NH would act as a strong field ligand if the metal is in +3 oxidation state. CO is a strong field ligand. Strong field ligands cause the unpaired electrons of the metals to pair up, thus forming low spin complexes. The spectrochemical series can be used to identify strong and weak ligands which form low spin and high spin complexes, respectively.

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The following assumptions are made:

1. Air behaves like an ideal gas throughout the process.

2. The initial pressure will be equal to the atmospheric pressure at sea level, 1atm.

3. The temperature remains constant.

Taking into account the above, we can apply the Boyle-Marriote Law that relates the change in pressure and volume at constant temperature. The equation tells us:

Where,

P1 is the initial pressure, 1atm

V1 is the initial volume, 5300L

P2 is the final pressure inside the air tank, this is our unknown

V2 is the final volume, this will be calculated using the volume equation for a sphere:

r is the radius of the sphere, 63.0cm/2=31.5cm

So, the volume of the air tank will be:

We clear P2 and replace the known data:

The air must be compressed at 40.5atm

Answer: 40.5

Answer:

C)Equations were used to identify regions around the nucleus where electrons would likely be.

Explanation:

edgenuity 2020

Answer:

Equations were used to identify regions around the nucleus where electrons would likely be.....(C).....

Explanation:

hope this helps. the person above me is correct, the comments were looking for a different question

If atmospheric pressure were 600 torr, water would boil at approximately 92°C.

The boiling point of water is affected by atmospheric pressure, and at higher altitudes or lower atmospheric pressures, water boils at a lower temperature.

At standard atmospheric pressure of 760 torr or 1 atm, water boils at 100°C. However, at a pressure of 600 torr, which is lower than standard atmospheric pressure, water would boil at a lower temperature.

There are various formulas and tables available to calculate the boiling point of water at different pressures, but as a general rule, for every decrease of 10 torr in atmospheric pressure, the boiling point of water decreases by about 0.6°C.

Therefore, at a pressure of 600 torr, water would boil at approximately 92°C, which is 8°C lower than its boiling point at standard atmospheric pressure.

Therefore, the correct answer is c. 92°C.

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Answer:

CoCI2 molecular weight is 129.84 g/mole

230 CoCI2 divided by the molecular weight

230 g/ 129.84 g/mole = 1.77 moles of CoCI2

Explanation:

2. The periodic table of elements is a tabular representation of chemical elements, organized on the basis of their atomic numbers

3. a. Mg

c.Fe

b.K

d. Cu

4. a.carbon

b.chlorine

c.aluminum

d.strontium

5. a. 5 group 18 element

b. 5 group 13 element

d. 5 group 17 element

c. 5 group 1 element

6. a. 3 group

b. 4 group

c. 5 group

d.4 group

7. I don't know

and.... you're welcome :))❤️

Answer:

adding salt is like adding an impurity therefore the boiling point might increase from 100°c to maybe 102°c

Answer:

A split-plot design lets us replicate our treatments twice using only 24 runs in a single time period, hence it is the most efficient use of resource.

Explanation:

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Answer:

1. 78.9g of CO

2. 104.9g Fe and 124.0g CO2

Explanation:

Based on the balanced reaction:

Fe2O3 (s) + 3CO (g) -> 2Fe(s) + 3CO2 (g)

1 mole of Fe2O3 reacts with 3 moles of CO to produce 2 moles of Fe and 3 of CO2

1. The moles of 0.150kg = 150g of Fe2O3 -Molar mass: are:

150g * (1mol / 159.69g) = 0.9393 moles Fe2O3

Moles CO:

0.9393 moles Fe2O3 * (3mol CO / 1mol Fe2O3) = 2.818 moles CO

Mass CO -Molar mass: 28.01g/mol-:

2.818 moles CO * (28.01g/mol) = 78.9g of CO

2. The moles of Fe produced are:

0.9393 moles Fe2O3 * (2mol Fe / 1mol Fe2O3) = 1.8786 moles Fe

Mass Fe -Molar mass: 55.845g/mol-:

1.8786 moles Fe * (55.845g/mol) = 104.9g Fe

The moles of CO2 produced are:

0.9393 moles Fe2O3 * (3mol CO2 / 1mol Fe2O3) = 2.818moles CO2

Mass CO2 -Molar mass: 44.01g/mol-:

2.818moles CO2 * (44.01g/mol) = 124.0g CO2

Reaction time time elapse between stimulation and the start of reaction to the stimulation.

A chemical reaction occurs when one or more chemicals combine to generate one or more new substances. An illustration of this is when iron plus oxygen combine to make rust. Vinegar with baking soda together result in the production of water, carbon dioxide, and sodium acetate. flammable or explosive items.

Chemical processes occur when atoms form or break chemical bonds. Products are the chemicals that are produced as a result of a chemical reaction, whereas reagents are the ingredients that initiate one.

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you click on the camera icon, and there could be a white button.... click that to take pictures

Answer: Uses an array of millions of tiny light cavities or photosites to record an image. When you press the camera’s shutter button and the exposure begins, each of these is uncovered to collect photons and store those an electrical signal.

Grams of sodium chloride can be produced  from 142. g of chlorine is 142 g.

Sodium chloride is a chemical compound composed of the elements sodium and chlorine. It is commonly known as table salt and is used as a seasoning in food, as well as in many industrial, medical and chemical processes.

Sodium chloride has the chemical formula NaCl and is made up of one sodium atom and one chlorine atom. In nature, it is found in the form of rock salt or halite and is abundant in many parts of the world.

Sodium chloride has many uses in cooking and food preservation. It is used as a seasoning and flavor enhancer, as well as to preserve food by inhibiting the growth of microorganisms. In industry, it is used as a raw material for the production of many products such as soaps, detergents, and chlorine. It is also used in the production of other chemicals, such as caustic soda, chlorine gas, and hydrochloric acid.

To find out how many grams of sodium chloride can be produced from 142. g of chlorine, we need to use the balanced chemical equation for the reaction.

In the equation 2Na + Cl2 → 2NaCl, we can see that the ratio of chlorine to sodium chloride is 1:1. Therefore, for every 1 gram of chlorine, 1 gram of sodium chloride is produced.

So, 142 g of chlorine will produce 142 g of sodium chloride.

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The m/v% concentration for the sugar solution is **4.20%**, while the m/m% concentration for the medication in the tablet is **41.94%**.

To calculate the concentration for each solution, we'll use the appropriate concentration formulas. For the sugar solution, we'll use the mass/volume percent (m/v%) formula: (mass of solute ÷ volume of solution) × 100. We have 4.20 grams of sugar dissolved in 72.0 mL of water, so (4.20 g ÷ 72.0 mL) × 100 = 4.20%. For the medication in the tablet, we'll use the mass/mass percent (m/m%) formula: (mass of solute ÷ mass of tablet) × 100. We have 325 mg of medication in a 775 mg tablet, so (325 mg ÷ 775 mg) × 100 = 41.94%.

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Answer:

Ireland and Germany

Explanation:

I took the quiz =]

The given statement is false. Compounds present in the group one and two of the periodic table form ionic bonds.

Covalent compounds are those compounds which are formed by equal sharing of electrons by two atoms to make a covalent bond. The elements present in the right side of the periodic table i.e mainly the elements present in the group 14-17, which are non-metals forms covalent bonds.

The elements present in group 1 and 2 of the periodic table are called alkali metals and alkaline earth metals respectively. These elements have the tendency to form electropositive ions, so they form ionic bonds.

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Answer:

\(M_{acid}=0.16M\)

Explanation:

Hello there!

In this case, according to the reaction between hydrochloric acid and sodium hydroxide:

\(HCl+NaOH\rightarrow NaCl+H_2O\)

Whereas the 1:1 mole ratio of the acid to base allows us to write:

\(n_{acid}=n_{base}\)

At the equivalence point (complete neutralization); it is possible for us to write it in terms of molarities and volumes as follows:

\(M_{acid}V_{acid}=M_{base}V_{base}\)

In such a way, we solve for the molarity of the HCl to obtain:

\(M_{acid}=\frac{M_{base}V_{base}}{V_{acid}} \\\\M_{acid}=\frac{83mL*0.45M}{235mL}\\\\M_{acid}=0.16M\)

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The balanced chemical equation for Na₃PO₄ and FeCl₂:

2 Na₃PO₄ (aq)  + 3 FeCl₂ (aq)   →  Fe₃(PO₄)₂ (s) +  6NaCl (aq)

The net ionic equation of HNO₃ and LiOH:

H⁺(aq)  + OH⁻(aq) →  H₂O (l)

The net ionic equation is an equation of a chemical reaction that expresses only elements,  ions, or compounds, that directly participated in that chemical reaction.

We can write a balanced  chemical equation for Na₃PO₄ and FeCl₂:

2 Na₃PO₄ (aq)  + 3 FeCl₂ (aq)   →  Fe₃(PO₄)₂ (s) +  6NaCl (aq)

The complete ionic equation can be written for reaction of Na₃PO₄ and FeCl₂:

6Na⁺ (aq) + 2PO₄³⁻ (aq)  +  3 Fe³⁺ (aq) + 6Cl⁻ (aq)  → Fe₃(PO₄)₂ (s) +  6 Na⁺ (aq) +  6Cl⁻ (aq)

The balanced chemical equation for  HNO₃ and LiOH:

HNO₃ (aq)  + LiOH (aq)  →  H₂O (l)  +  LiNO₃ (aq)

The complete ionic equation for HNO₃ and LiOH::

H⁺(aq)  + NO₃⁻ (aq)  +  Li⁺(aq)  +  OH⁻ (aq)   →  H₂O (l) +  Li⁺(aq) + NO₃⁻ (aq)

The net ionic equation of HNO₃ and LiOH:

H⁺(aq)  + OH⁻(aq) →  H₂O (l)

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Answer:

Useful

Explanation:

Index fossils are believed to be useful in correlating rock strata from widespread locations.▸ The collection of such fossils from different rock formations and layers enables the geologists to identify the layer of rock they were found in.

▸ They are also useful in dating and the study of geological formations which help scientists to get a clear understanding of the environment and the life forms that dwelt on the planet even hundreds of millions of years ago.

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1) write balanced chemical equation.

\(K_{2}CO_{3}_{(aq)}+2\ HBr_{(aq)}\ ->\ 2\ KBr_{(aq)}+CO_{2}_{(g)}+H_{2}O_{(l)}\)

2) separate into ions, if possible.

\(2\ K^{1+}_{(aq)}+CO_{3}^{2-}_{(aq)}+2\ H^{1+}_{(aq)}+2\ Br^{1-}_{(aq)}\ ->\ 2\ K^{1+}_{(aq)}+2\ Br^{1-}_{(aq)}+CO_{2}_{(g)}+H_{2}O_{(l)}\)

3) remove spectator ions.

\(2\ H^{1+}_{(aq)}+CO_{3}^{2-}_{(aq)}\ ->\ CO_{2}_{(g)}+H_{2}O_{(l)}\)

The net ionic reaction is that in which positive ions and negative ions of reactant and product are equal, resultant charge will be neutral.

2K⁺ +CO3²⁻ + 2H⁺ +2Br⁻ --> 2K⁺+ 2Br⁻ + CO2 + +H2O

The net ionic equation is the chemical equation that shows only those elements, compounds, and ions that are directly involved in the chemical reaction.

Example: - "NaOH" is "Na+ + OH⁻".

K₂CO₃(aq) + 2HBr(aq) --> 2KBr(aq) + CO₂ (g)+ H₂O(l)

Similarly, above reaction can be written as.

2K⁺ +CO3²⁻ + 2H⁺ +2Br⁻ --> 2K⁺+ 2Br⁻ + CO₂ + H₂O

Thus, above reaction is know as net ionic reaction.

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Using the molar mass of methane, there are 0.45 mole of methane in a 7.21 gram sample.

Molar mass is defined as the mass per unit mole of a substance.

MM = m/n

where MM = molar mass

m = mass

n = number of moles

The molar mass of methane is the sum of the molar masses of each element.

C : 12.011

H : 1.00784

CH4 : 12.011 + 4(1.00784) = 16.04236 g/mol

If a sample of methane has a mass of 7.21 grams, using the formula for the molar mass, solve for the number of moles.

MM = m/n

16.04236 g/mol = 7.21 g/n

n = 7.21 g/16.04236 g/mol

n = 0.4494351205 mol

n = 0.45 mol

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ANSWER

THE PENTANES

EXPLANATION

he word for5 in Greek is PENT like the 5 sided and 5 angled building in Wachington the PENTagon.

SO C5H12 IS PENTAND BECAUSE IT HAS NO DOUBLE BONDAS IT IS AN ALKANE

SO SO C5H12 IS PENT-ANE    PENTANE AND THERE ARE MULTIPLE FORMS OF IT

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

Explanation:

The Eurasian Plate is moving away from the North American Plate at a rate the is about 3cm per year. That is about the same rate at which your fingernails will grow.

The distance from New York to London in 5 million years will be 3552 miles (5717 km). So if today it takes us 7 hours and 30 minutes to fly to London at a speed of 460 miles per hour, in 5 million years at the same rate of speed will take us close to 8 hours.

London is a North American Plate

Less than 6. 0 grams of copper i.e. 0.36 g is formed, and some aluminum is left behind in the reaction ingredients.

The amount of copper made is calculated from the balanced equation of the reaction.

The balanced equation :

3 CuCl2 + 2 Al → 2 AlCl3 + 3 Cu

molar mass of CuCl₂ = 132 g/mol

molar mass of Al = 27.0 g

molar mass of Cu = 64.0 g

moles of aluminium = 0.50 / 27 = 0.018 moles

moles of CuCl₂ produced = 0.75/132 = 0.00568 moles

So, CuCl₂ is acting as the limiting reagent in the reaction.

3 moles of CuCl₂ makes 3 moles of Cu

Similarly,

0.00568 moles CuCl₂ will make 0.00568 moles of Cu

Mass of Cu produced = 0.00568 * 64 = 0.36 g

So, Less than 6. 0 grams of copper is formed, and some aluminum is left in the reaction mixture as CuCl2 acts as limiting reagent.

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Percent yield is defined as the 100 times the ratio of actual yield and theoretical yield. It ca be calculated by finding theoretical yield of the reaction and come as 76.6%.

2Ca₃(PO₄)₂(s) + 6SiO₂(s) → 6CaSiO₃(l) + P₄O₁₀(g)

P₄O₁₀(g) + 10C(s) → P₄(g) + 10CO(g)

We need to find out the moles of Ca₃(PO₄)₂ and SiO₂ to find limiting reactant. With the help of limiting reactant we can find moles of P₄O₁₀ = Moles of P₄. We must convert  moles of P₄ to mass using Molar mass (P₄ = 123.895g/mol):

Moles Ca₃(PO₄)₂ -Molar mass: 310.1767g/mol-

293.5g (1mol / 310.1767g) = 0.9462moles

Moles SiO₂ -Molar mass: 60.08g/mol-:

378.5g  (1mol / 60.08g) = 6.30 moles

For the complete reaction of 6.30 moles of SiO₂ there are required:

6.30 moles SiO₂  (2 moles Ca₃(PO₄)₂ / 6 moles SiO₂) =

2.10 moles Ca₃(PO₄)₂. Now there are just 0.9462 moles, Ca₃(PO₄)₂ is limiting reactant

Moles of P₄O₁₀ = Moles P₄:

0.9462moles of  Ca₃(PO₄)₂ (1mol P₄O₁₀ / 2 mol Ca₃(PO₄)₂)

= 0.4731 moles of  P₄O₁₀ = Moles P₄.

The mass is calculated as:

0.4731 moles P₄  (123.895g / 1mol) = 58.6g = Theoretical yield.

Thus, Percent yield is calculated as:

44.9g / 58.6g ×100 = 76.6%

So, 76.6% is percent yield of P₄

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there are 8 moles of carbon in the molecule because the ratio of carbon per the whole caffine molecule is 8 carbon atoms: 1 molecule of caffine so in terms of moles that's 8:1 :)

Answer:

Solve a problem with the first 100th on my phone and the phone is a bit annoying and I have to use it to get the battery back.

During an isobaric expansion, the temperature of the gas increases.

An isobaric process is a thermodynamic process that occurs at a constant pressure. During an isobaric expansion, the volume of the gas increases while the pressure remains constant. Since the gas does work on the surroundings by expanding, it loses internal energy, which results in a decrease in temperature. However, since the pressure is constant, the gas can exchange heat with its surroundings, and if the heat added is greater than the work done, the gas gains energy and its temperature increases. Therefore, during an isobaric expansion, the temperature of the gas increases if the heat added to the system is greater than the work done by the gas.

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Echo: When a sound wave is created in the air, some of it is reflected back to the listener while some of it is absorbed after hitting a reflector. Echo is the name for this reflected sound.

Utilizations for Echo:

1. Bats use the echolocation method to find their way because they are unable to see with their eyes. Bats can determine whether an object is in front of a sound by listening to how it is reflected. It uses this method when hunting its prey.

2. This method is also employed to determine undersea distance and ocean depth.

3. Estimating the separation between hills and mountains is also helpful.

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The linkage that closes the ring in monosaccharides is called a glycosidic bond. A glycosidic bond forms when the hydroxyl group (-OH) of one monosaccharide molecule reacts with the anomeric carbon atom (the carbon atom that becomes the new chiral center) of another monosaccharide molecule, resulting in the formation of an oxygen bridge.

This linkage is crucial for the formation of various carbohydrates, including disaccharides, oligosaccharides, and polysaccharides. It plays a significant role in the structure and function of carbohydrates, as it determines the type and arrangement of sugar molecules in the resulting compound.

The formation of glycosidic bonds is typically catalyzed by enzymes called glycosyltransferases, which facilitate the formation of the linkage between the hydroxyl groups of the monosaccharide units. Different types of glycosidic bonds can be formed, such as alpha (α) or beta (β) glycosidic bonds, depending on the orientation of the hydroxyl group involved in the linkage.

Overall, the glycosidic bond is essential for the formation and stability of carbohydrate molecules, contributing to their diverse biological functions and structural properties.

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