write a systematic name for k[co(nh3)2(cn)4]

Based on my understanding of the chemical properties of sodium and gold, I would place sodium higher than gold in the activity series.

Sodium is a highly reactive metal that readily loses its outermost electron to form a positively charged ion, whereas gold is a relatively inert metal that does not easily undergo chemical reactions.

As for the second part of the question, hydrochloric acid (HCl) will not react with gold metal to produce gold(III) ions and hydrogen gas. Gold is a noble metal, which means it is resistant to oxidation and does not readily react with acids like HCl. However, aqua regia, a mixture of nitric acid and hydrochloric acid, can dissolve gold by forming complex ions, such as AuCl4-, which are more soluble in water than pure gold metal.

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Molarity of a solution made by  dissolving 26. 42 g of (nh4) 2 so4 in enough water to make 50 ml of solution is 3.8M.

Molar concentration (likewise called molarity, sum focus or substance focus) is a proportion of the centralization of a synthetic animal types, specifically of a solute in an answer, as far as measure of substance per unit volume of arrangement. In science, the most regularly involved unit for molarity is the quantity of moles per liter, having the unit image mol/L or mol/dm³ in SI unit. An answer with a grouping of 1 mol/L is supposed to be 1 molar, usually assigned as 1 M.

Molarity is number of moles of solute/volume of solution in liters

Here,number of moles of solute is =mass of solute/molar mass of solute.

Solute is (NH₄)₂SO₄,so molar mass of solute is 132.14g

Now,number of moles are =26.42/132.14=0.19mole.

Now,molarity =(0.19/50)×1000=3.8M.

Hence,molarity is 3,8M.

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Answer:

yes, A double replacement reaction has two compounds as reactants.

hence it's true.......

Answer:

it's true...

Explanation:

The correct options are:1.

Conditional probability that the selected compound actually has an impurity is 0.74.2.

Conditional probability that the selected compound is actually free of an impurity is 0.0185.3.

Conditional probability that the selected roll is from Process I given that it is defective is 0.64.

Here, we need to find out the probability that a selected compound has an impurity given that the test indicates an impurity is present.

P(A) = probability that a compound has impurity = 0.15

P(B) = probability that the test indicates an impurity is present

= 0.15 x 0.9 + 0.85 x 0.05

= 0.14 + 0.0425

= 0.1825P

(B|A) = probability that the test indicates an impurity is present given that the compound has impurity = 0.9

Therefore, by Bayes' Theorem,

P(A|B) = P(B|A) * P(A) / P(B)

         = 0.9 * 0.15 / 0.1825

         = 0.7370

         ≈ 0.74

Conditional probability that the selected compound actually has an impurity is 0.74.10.

Here, we need to find out the probability that a selected compound is actually free of an impurity given that the test indicates an impurity is not present.

P(A) = probability that a compound has impurity = 0.15

P(B) = probability that the test indicates an impurity is not present = 0.85 x 0.95 + 0.15 x 0.1 = 0.8075

P(B|A) = probability that the test indicates an impurity is not present given that the compound has impurity

          = 0.1

Therefore, by Bayes' Theorem,

P(A|B) = P(B|A) * P(A) / P(B)

          = 0.1 * 0.15 / 0.8075

          = 0.0185

Conditional probability that the selected compound is actually free of an impurity is 0.0185.11.

Here, we need to find out the probability that the selected roll is from Process I given that it is defective.

Let A denote the event that a roll is from Process I and B denote the event that a roll is defective.

Then, we need to find out P(A|B).

P(A) = probability that a roll is from Process I = 0.6

P(B|A) = probability that a roll is defective given that it is from Process I = 0.03

P(B|A') = probability that a roll is defective given that it is from Process II = 0.01

P(A'|B) = probability that a roll is from Process II given that it is defective

Therefore, by Bayes' Theorem,

P(A|B) = P(B|A) * P(A) / [P(B|A) * P(A) + P(B|A') * P(A')]

= 0.03 * 0.6 / (0.03 * 0.6 + 0.01 * 0.4)

= 0.6429

≈ 0.64

Conditional probability that the selected roll is from Process I given that it is defective is 0.64.

Hence, the correct options are:1.

Conditional probability that the selected compound actually has an impurity is 0.74.2.

Conditional probability that the selected compound is actually free of an impurity is 0.0185.3.

Conditional probability that the selected roll is from Process I given that it is defective is 0.64.

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Answer:

from formula,

n = speed of light

speed of light in medium

In Silica,

1.44 = (3e8m/s)/v

v= (3e8m/s)/1.44

v = 20.83e7m/s

v = 20.8 × 10^7m/s.

Light travels in silica at 20.8 × 10^7 m/s.

The element whose isotope is represented as  \(_{6}^{14}X\) is carbon -14. The atomic number of carbon is 6 and the mass number for the given isotope is 14 amu.

Isotopes are atoms of same element with different  mass numbers. Isotopes slightly changes in chemical and physical properties between each other.

Almost elements in the periodic table are having isotopes. However not all of them are stable. Some of them for heavy metals are radioactive isotopes and are not stable.

The isotope is represented by showing mass number in top of the symbol and atomic number at the bottom. The atomic number 6 corresponds to carbon. Hence, option A is correct. Carbon -14 isotope is given here.

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Explanation:

253°C + 273.15 = 526.15K

526.15 kelvins

The pH can be calculated as pH = -log[H+]pH = -log(9.5 x 10^-14) = 13.02. Therefore, the pH of the resulting solution is 13.02.

To determine the pH of the resulting solution, we first need to calculate the number of moles of HNO3 and NaOH that react when they are mixed together. After calculating the number of moles of reactants, we can use an ICE table to determine the concentration of H+ and OH- ions present in the solution and hence determine the pH. Let's begin by calculating the moles of HNO3 and NaOH. A number of moles of HNO3:moles of HNO3 = volume x concentration mol = 55.0 mL x 0.150 mol/L = 0.00825 molNumber of moles of NaOH: moles of NaOH = volume x concentration mol = 40.0 mL x 0.250 mol/L = 0.010 molSince NaOH and HNO3 react in a 1:1 stoichiometry (i.e. one mole of HNO3 reacts with one mole of NaOH), it can be seen that NaOH is the limiting reagent. Therefore, all of the moles of NaOH (0.010 mol) will react with an equal amount of moles of HNO3. The moles of HNO3 that remain will be equal to the initial moles of HNO3 minus the moles of NaOH used to react with it. Therefore: moles of HNO3 remaining = moles of HNO3 initially - moles of NaOH reacted moles of HNO3 remaining = 0.00825 - 0.010 = -0.00175 mol.

It can be seen that there are no moles of HNO3 remaining in the solution as the amount of NaOH added is greater than the amount of HNO3 initially present. Now, we need to determine the concentration of H+ and OH- ions present in the solution using an ICE table: NaOH + HNO3 ⇌ NaNO3 + H2ONaOH HNO3 NaNO3 H2OInitial (mol) 0.010 0.00825 0 0Change (mol) -0.010 -0.00825 +0.010 +0.010Equilibrium (mol) 0 0 0.010 0.010From the ICE table, the concentration of OH- ions can be calculated to be 0.010/0.095 = 0.1053 M. The concentration of H+ ions can be calculated by using the formula Kw = [H+][OH-] where Kw is the ion product constant of water and is equal to 1.0 x 10^-14 M^2 at 25°C.Kw = [H+][OH-]1.0 x 10^-14 M^2 = [H+][0.1053 M].

Therefore, [H+] = 9.5 x 10^-14 M.The pH can be calculated as pH = -log[H+]pH = -log(9.5 x 10^-14) = 13.02Therefore, the pH of the resulting solution is 13.02. Answer: The pH of the resulting solution is 13.02.

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Answer:

Glycolipid

Explanation:

These are called glycolipids.

Glyco comes from the carbohydrate, and is a word relating to sugars, which are a type of carbohydrate

Lipid is a fat/oil, and as you could have guessed, comes from the phospholipid.

Hope I helped! :)

A carbohydrate attached to a phospholipid is called a glycolipid.

Glycolipids can be described as the complex type lipid containing carbohydrates, fatty acids, and glycerol groups.  The glycosidic term is used for any molecule containing one or more monosaccharides bound by glycosidic linkage.

Glycolipids can be also called structural lipids, which are generally found in the extracellular face of the cell membranes. Different types of glycolipid are Cerebroside and ganglioside.

Glycolipids provide energy to cells and help to determine the blood group. The blood group types determine from the oligosaccharides attached to a particular glycolipid on the surface of blood cells.

It assists the immune system of the body by destroying the pathogens in the human body.

A phospholipid is a lipid that is attached to the phosphate group. When the carbohydrate molecules attached to the lipid are known as glycolipid. Glycolipid plays an important role on the cell to cell interaction and cell differentiation.

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The sodium decrease the pH by increasing the ionic characters of the solution.

Sodium ions have been included into answers through addition of sodium hydroxide to boom pH. There became additionally an boom withinside the natural anion con- centration as a result of the better overall acid awareness required to hold the awareness of protonated natural acid species consistent at a better pH.

Sodium ion (Na+) is the foremost extracellular cation and solute and is important for era of movement potentials in frightened and cardiac tissue. Pathologic will increase or decreases in overall frame Na+ are related to corresponding will increase or decreases in extracellular volume (ECV) and plasma volume (PV).

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Alan wanted to test if the aluminum or other metals would prevent the iron from rusting, he set up four beakers. in beaker 1 he put an iron nail. in beaker 2 he put iron nail wrapped in aluminum foil. in beaker 3 he put an iron nail wrapped in magnesium . in 4 beaker he puts an iron nail wrapped in lead. he put same amount of water in all 4.

(1) Alan is trying to test the nails for rust.

(2) 2 controls in Alan's experiment are : nail without coating and water

(3) The beaker is the control in this experiment : beaker 1

(4) The independent variable is coating on the nails.

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Answer:

4.18 joules of heat energy

Answer:B is the right answer

Explanation:

Answer:

p=nRT/V

v=nRT/P

n=PV/RT

t=PV/nR

Raman spectroscopy involves the excitation of dipole moments within a molecule.

The Raman spectroscopy is a technique to analyse the chemicals. raman spectroscopy is a non destructive analysis. The reman spectroscopy describes the chemical structure , crystallinity and the molecular interaction. Raman spectroscopy requires a dipole moment within a molecule. The raman spectroscopy is a very powerful technique for determining the chemical species. the raman spectroscopy detects the light interaction with the matter. The raman spectroscopy is very much similar to the IR spectroscopy. The raman spectroscopy observes the vibrations shift.

Thus, Raman spectroscopy involves the excitation of dipole moments within a molecule.

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The slopes are different (3 and -1), and the system of equations has one solution.

What does slope in chemistry mean?

The rise and the run are terms used to describe changes in height between two places. Rise divided by Run gives you the slope. Run = rise + slope Rise + run = slope.

To determine the number of solutions for the system of equations:

\(\[y &= 3x - 5 \\y &= -x + 4}\]\)

we can compare the slopes of the two equations. The first equation has a slope of 3, while the second equation has a slope of -1.

If the slopes are different, the lines representing the equations will intersect at a single point, and there will be one solution.

Therefore, the slopes are different (3 and -1), and the system of equations has one solution.

What exactly is an equation system?

simultaneous equations, a system of equations Two or more equations must be solved jointly in algebra (i.e., the answer must satisfy every equation in the system). The number of equations must match the number of unknowns for a system to have a singular solution. A solution is not assured even then.

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The solutions for the system of equations y = 3x - 5y = -x + 4 are x = 5 and y = (3/4). Thus, there are two solutions.

To solve the above system of equations, we need to find the values of x and y that make both of these equations true at the same time. This is what we mean by a solution to the system.

To find the solution to the above system of equations, we need to eliminate either the y or x variable from any one of the equations. As we can see that the coefficient of y in the first equation is 1 and the coefficient of y in the second equation is also 1. Therefore, we can subtract the second equation from the first equation to eliminate the variable y.

y = 3x - 5- y = -x + 4______________2y = 4x - 1

To eliminate the y variable, we added the two equations. Now we can solve for x:

x = (2y + 1)/4

We can substitute this value of x into either one of the original equations to solve for y. Let's use the first equation.

y = 3x - 5y

= 3[(2y + 1)/4] - 5y

= (3/4)y - (15/4)y

= (3/4)y - (15/4)y + (15/4)

= (3/4)y(15/4)

= (3/4)y(5) = y

So, the solution to the given system of equations is x = 5 and y = (3/4). Therefore, the given system of equations has two solutions.

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Giant molecules are also referred to as macromolecules and polymers when numerous molecules are combined. These atoms are arranged in a three-dimensional structure and are joined by covalent bonds.

A giant molecule, also known as a macromolecule, is a usually large molecule crucial to biophysical processes, such as a protein or nucleic acid. It is made up of many atoms that are covalently bound. Large non-polymeric molecules including lipids and macrocycles, as well as biopolymers, are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, giant molecules can also be found in research materials like carbon nanotubes.

Different experts use different terminology for giant molecules. For instance, in biology, giant molecules refer to the four immense molecules that make up living things, while in chemistry, it refers to aggregates of two or more molecules that are held together by intermolecular forces rather than covalent bonds yet that is difficult to dissolve apart. The term giant molecule is frequently referred to as high polymer in British English.

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Wine was produced 37 years ago (1984 as usual year 15,2021) that is shown in the calculations below.

Reaction rate is calculated using the formula rate = Δ[C]/Δt, where Δ[C] is the change in product concentration during time period Δt. The rate of reaction can be observed by watching the disappearance of a reactant or the appearance of a product over time.

The time can be represented as follows:

t= 2.303\∧ log A0/A

∧= 0.693/t 1/2

The rate of a reaction is proportional to the reciprocal of the time taken. Rate α 1 time Rate is inversely proportional to time. Units: s-1, min-1 etc.

The given parameters are as follows:

t1/2=12.3

A0=5.5

A=0.688

t= 2.303/(0.693/12.3) log (5.5/0.688)

t=36.9

t=37 years

Thus, wine was produced 37 years ago (1984 as usual year 15,2021)

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To prevent the growth of Clostridium botulinum (C. botulinum) bacteria, which is a common foodborne pathogen, it is important to maintain a low pH. The growth of C. botulinum is inhibited in acidic environments.

The recommended pH range to prevent the growth of C. botulinum is typically below 4.6. This value is often considered the critical pH for controlling the growth and toxin production of C. botulinum in food. Food preservation methods, such as canning or acidification, aim to achieve pH levels below 4.6 to ensure the safety of the food and prevent the growth of C. botulinum spores, which can produce the dangerous botulinum toxin. It's important to note that the specific pH requirements to inhibit C. botulinum growth may vary slightly depending on factors such as temperature, oxygen availability, and the presence of other inhibitory factors in the food. Therefore, it's crucial to follow proper food safety guidelines and consult relevant regulatory authorities for specific pH recommendations for different types of food products.

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Answer:

1. Yes, a person can separate this mixture best using a small screen or strainer and magnet.

Explanation:

iron is magnetic

Answer:

V2 = 181

Explanation:

Follow this equation: V1/n1 = V2/n2

V1 = 87.5L

n1 = 8.7

n2 = 18

V2 =?

V1/n1 = V2/n2   (to find V2, switch n2 to the other side)

So it going to be ---> n2×V1/n1 = V2

18×87.5/8.7 = V2

1575/8.7 = V2

181 = V2

So the answer is: 181

Answer:

helium

Explanation:

The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.

Answer: 2nd answer " C "

Explanation:

First ionization energy is a periodic trend that increases up and to the right on the periodic table. After looking at the position of these elements on the periodic table, carbon is clearly the best answer-choice (B) aka " C "

Equilibrium. Option C is correct

This law states that a new equilibrium state is achieved if the changes in temperature, pressure, concentration and volume will cause a predictable and opposing changes in the system.

This shows that Le Chatelier's principle can be used to predict the properties above to determine the effect equilibrium have on a system.

Based on the above explanations, we can conclude that Le Chatelier's Principle governs the property of Equilibrium.

The tunnels and caves in the Appalachian Mountains were formed by natural processes such as erosion, tectonic movements, and water flow over millions of years.

The region was once covered by oceans and later experienced intense tectonic activity that caused the land to shift and fold. As the mountains rose, water and other natural forces began to carve out the tunnels and caves that we see today. The geological history of the Appalachian Mountains is complex and fascinating, and these natural formations offer a glimpse into the incredible forces that have shaped our planet over time. Over time, acidic water seeps into cracks, gradually dissolving the limestone and creating cave systems. Tunnels can be formed by underground water flow or even human activity, such as mining. These natural features contribute to the unique beauty and ecological diversity of the Appalachian Mountains.

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The theoretical yield is the maximum amount of product that can be obtained assuming complete reaction and no loss of product during isolation or purification.

Without knowing the specific reactants and reaction being used, I cannot provide a specific answer. However, the theoretical yield can be calculated using stoichiometry and the balanced chemical equation for the reaction. It is important to note that the theoretical yield is the maximum amount of product that can be obtained assuming complete reaction and no loss of product during isolation or purification.

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Answer:

B) -1.00 M/min

Explanation:

Based on the reaction:

2 SO2(g) + O2(g) → 2SO3(g)

2 moles of SO2 are consumed per mole of O2 producing 2 moles SO3

In the problem, the sulfur dioxide has a rate of change of -2.00M/min. As the moles of oxygen that reacted are half the moles of SO2, its rate of change is halved, that is:

Answer:

B

Explanation:

Cause metamorphic rock is formed by heat pressure overtime

The rock collected by Roger if it is metamorphic rock it is formed by pressure and heat over time. Hence, image image B represents a metamorphic rock.

Metamorphic rocks have undergone significant alteration from their igneous, sedimentary, or previous metamorphic forms. When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, some combination of these conditions, metamorphic rocks are created.

These kinds of conditions can be found deep inside the Earth or where tectonic plates collide. The process of metamorphism changes the rocks into denser, more compact rocks rather than melting them.

Either by the rearranging of mineral constituents or through chemical reactions with fluids that enter the rocks, new minerals are produced. Even rocks that have already undergone metamorphosis might undergo changes due to pressure or temperature. Many metamorphic rocks are bent, smeared out, and compressed.

Therefore, option B is correct.

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