what isomers are possible for pt(cn)2(nh3)2 (where cn– is c-bonded)?

It appears to be related to a volcanic activity alert system in a certain country. The statement mentions that a volcano is currently at level 4, which is the second-highest level on the country's volcano-alert system.

A volcano is a graphical representation of the relationship between the energy changes and reaction progress in a chemical reaction. It is commonly used to describe acid-base reactions, where the reactants and products have different acid-base properties.

The volcano plot is a graph with the reaction rate or activity of a catalyst on the y-axis and the reaction-free energy or potential on the x-axis. It is named after its shape, which resembles a volcano with a peak representing the maximum reaction rate or activity.

The position of a reactant or catalyst on the volcano plot determines its ability to promote the reaction. If it is to the left of the peak, the reaction is thermodynamically favorable but kinetically slow. If it is to the right of the peak, the reaction is kinetically favorable but thermodynamically less favorable.

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Answer:

For 5 pts? gimme that

Explanation:

Answer:

Explanation:

if you know what those phrases mean, then you can look them up and draw those pictures you find, as well as add the definition of each.

The ion that has 26 protons, 28 neutrons, and 24 electrons is Iron (Fe) (option c).

An element can be determined by the number of protons in the nucleus of its atom. The number of protons present in an atom is referred to as the atomic number of the element.

This means that the number of protons in an atom is unique to a specific element.

Iron (Fe) has 26 protons in the nucleus of its atom.

Therefore, an ion with 26 protons is an ion of the element iron (Fe).

Magnesium (Mg) has 12 protons, Chromium (Cr) has 24 protons, Xenon (Xe) has 54 protons and Nickel (Ni) has 28 protons.

Thus, an ion which has 26 protons, 28 neutrons, and 24 electrons  is Fe (option c)

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Answer:

I guess one mole. of mercury

Explanation:

because mercury is denser

The one that has the  greatest mass

To determine which of the given options has the greatest mass, we need to compare the molar masses of the substances.

The molar mass is the mass of one mole of a substance and is expressed in grams per mole (g/mol).

The molar masses of the given substances are:

Gold (Au): 197.0 g/mol

Mercury (Hg): 200.6 g/mol

Barium (Ba): 137.3 g/mol

Comparing the molar masses, we can see that one mole of mercury (Hg) has the greatest mass among the options provided.

Therefore, the correct answer is:

c. One mole of mercury.

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Answer:

Electrons are trapped inside the atom because of the attraction forces with positively charged protons that are found in the nucleus.

The rule of BODMAS should be obeyed, thus

= (7.945 J + 82.3 J) - 0.02 J

= 90.245 J - 0.02 J

= 90.225J

= 56.0012m

500 g + 432 g + 2 g

= 934g

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Among the given options, the correct match between a group and its anatomical feature is: C) Diatoms → tests made of cellulose.

Diatoms are a type of algae belonging to the phylum Bacillariophyta. They are known for their intricate and delicate cell walls called tests or frustules. These tests are composed primarily of silica, making option A incorrect. Dinoflagellates (option B) are unicellular organisms that possess two flagella and do not have a holdfast. Phaeophyta, or brown algae (option D), have structures called blades that serve as their leaf-like photosynthetic organs. Hence, the correct match is diatoms having tests made of cellulose.

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Answer:

50?

I think but not 100% sure if not lmk

Since each silicon atom shares its four outer electrons with another silicon atom, silicon has a massive covalent structure.

Giant Covalent Structures is its name. Solids with enormous covalent structures have very high melting points. Strong covalent connections connect each of the atoms, which must be disrupted in order to melt the material. Examples include silicon dioxide, graphite (a form of carbon), and diamond.

At normal temperature, giant covalent compounds are solids and have extremely high melting and boiling temperatures. Due to the strength of covalent bonds, melting and boiling these massive structures requires a lot of energy.

It has a large number of silicon and oxygen atoms. The structure of its atoms is connected throughout.

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Ionic bonds are created when two oppositely charged ions are attracted to one another by electrostatic force. A chemical element is uniquely defined by its atoms, which are tiny pieces of substance.

An atom is made up of a core nucleus and one or more negatively charged electrons that orbit it. The positively charged, comparatively hefty protons and neutrons that make up the nucleus may be present. Any elementary particle of matter with at least one proton is referred to as an atom. Examples of atoms are neon (N) and hydrogen (H) (Ne). Chemistry's fundamental building component is an atom. It is the lowest fraction of substance into which electrically charged particles cannot be released. It is also the smallest piece of substance with chemical element-like characteristics.

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Answer:

only 2 electrons can be occupied in atomic orbital.

The relative atomic mass of aluminium (Al) is 27, and the relative atomic mass of oxygen (O) is 16. Therefore, the relative formula mass of aluminium oxide (Al2O3) is:

(2 x 27) + (3 x 16) = 54 + 48 = 102

To calculate the percentage of aluminium in aluminium oxide, we need to determine the mass of the aluminium in the compound. Since there are two aluminium atoms in each molecule of aluminium oxide, the mass of the aluminium is:

(2 x 27) = 54

Therefore, the percentage of aluminium in aluminium oxide is:

(54 / 102) x 100% = 52.94%

So, the percentage of aluminium in aluminium oxide is approximately 52.94%.

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Answer:

A water turbine is used to convert the energy contained in water, potential energy or kinetic energy, into mechanical or electrical energy. There are two types of water turbines, the reaction water turbine, and the impulse water turbine.

Explanation:

Answer:

Water turbines are used to take energy whether it may be kinetic or potential from the water and convert that energy into mechanical, or electrical energy.

Explanation:

Explanation:

zinc nitrate

zn no3

valency :

2 -1

So, zn(no3)2

The grams are in the 6.95 × 10²⁴ molecules of the SF₆ is 0.0790 grams.

The number of the molecules of SF₆ =  6.95 × 10²⁴ molecules

The molar mass of the SF₆  = 146 g/mol

The one mole of the substance =  6.022 × 10²³ molecules

The number of the moles in the 6.95 × 10²⁴ molecules = 6.95 × 10²⁴ /  6.022 × 10²³

The number of the moles = 11.54 moles

The grams in the 11.54 moles = 11.54 / 146

                                                 = 0.0790 grams

Thus, the 0.0790 grams present in the 6.95 × 10²⁴ molecules of the SF₆ .

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Answer:

C. Smoking damages the cilia in the respiratory system

Answer:

C. Smoking damages the cilia in the respiratory system.

Explanation:

Hope this helped.

The solute that would provide the greatest number of particles when dissolved in 1000 g of water is ammonium nitrate (NH4NO3).

To determine which solute would provide the greatest number of particles when dissolved in 1000 g of water, we need to consider the dissociation or ionization of each compound.

A) Urea, CO(NH2)2: Urea does not dissociate or ionize in water. It remains as a single molecule. Therefore, it would provide only one particle.

B) Acetic acid, CH3COOH: Acetic acid partially dissociates into acetate ions (CH3COO-) and hydrogen ions (H+) in water. So, it would provide more than one particle.

C) Ammonium nitrate, NH4NO3: Ammonium nitrate dissociates into ammonium ions (NH4+) and nitrate ions (NO3-) in water. It would provide more than one particle.

D) Calcium sulfate, CaSO4: Calcium sulfate dissociates into calcium ions (Ca2+) and sulfate ions (SO42-) in water. It would provide more than one particle.

E) Barium chloride, BaCl2: Barium chloride dissociates into barium ions (Ba2+) and chloride ions (Cl-) in water. It would provide more than one particle.

From the given options, it is clear that options B, C, D, and E would provide more than one particle. Among these, the compound with the greatest number of particles would be the one that dissociates into the most ions.

Looking at the formulas, we can see that ammonium nitrate (NH4NO3) would dissociate into the most ions. It would provide a total of four particles: two ammonium ions (NH4+) and two nitrate ions (NO3-).

Therefore, the correct answer is:

C) 0.030 mol of ammonium nitrate, NH4NO3

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The reaction time needed to achieve 95% conversion of the limiting reactant is approximately 46.05 seconds.

To find the reaction time needed to achieve 95% conversion of the limiting reactant in an isothermal continuously stirred batch reactor, we need to use the first order rate equation:

ln(C₀/C) = kt

Where:
- C₀ is the initial concentration of the reactant
- C is the concentration of the reactant at a given time t
- k is the rate constant of the reaction
- t is the reaction time

In this case, the reaction is first order in both reactants, A and B. So, we need to consider the reactant with the lowest initial concentration as the limiting reactant.

Given:
Initial concentration of A (C₀,A) = 80 mol/L
Initial concentration of B (C₀,B) = 80 mol/L

Since both A and B are present in equal amounts initially, we can consider either A or B as the limiting reactant. Let's assume A is the limiting reactant.

To achieve 95% conversion of A, we need to find the concentration of A at that point, which is (5/100) times the initial concentration of A:
C = (5/100) * C₀,A

Now, substituting the values in the first order rate equation, we get:
ln(C₀,A/C) = k * t

Rearranging the equation, we have:
t = ln(C₀,A/C) / k

Substituting the values given in the problem:
C₀,A = 80 mol/L
C = (5/100) * C₀,A = (5/100) * 80 mol/L = 4 mol/L
k = 1E-3 L/mol/s

Calculating the reaction time:
t = ln(80/4) / (1E-3)

Simplifying the expression:
t = ln(20) / (1E-3)

Using a calculator, we find:
t ≈ 46.05 s

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Condensation is a process of conversion of the gaseous phase into liquid phase whereas accretion is a process of accumulation of small particles into larger ones over a period of time.

Condensation is the process by which water vapor in the air is changed into liquid water it's generally the opposite of evaporation. Condensation is crucial to the water cycle because it is responsible for the formation of clouds.

Accretion is the accumulation of smaller particles into a massive object by gravitationally pulling more matter towards itself, typically gaseous matter, in an accretion process. Most astronomical objects, such as galaxies, stars, and planets, are formed by the same accretion processes itself.

Accretion from natural causes, that  adds soil, sand, and also other types of earth to the part of a person's property that generally borders water. While this occurs very slowly, a piece of property may grow a lot overtime and also may increase its value.

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The volume of the cylinder is 411 L

The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behaviour of many gases under many conditions, although it has several limitations. The ideal gas equation can be written as-

                         PV = nRT

where,

P = Pressure

V = Volume

T = Temperature

n = number of moles

Given,

Initial volume = 3 L

Initial pressure = 137 atm

Final pressure = atmospheric pressure = 1 atm

P₁V₁ = P₂V₂

137 × 3 = 1 × V₂

V₂ = 411 L

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The statement is FALSE. Non-ferrous metals can be hardened by heat treatment, although the mechanisms and processes involved may differ from ferrous metals.

Heat treatment techniques such as precipitation hardening can be used to increase the strength of non-ferrous metals. Non-ferrous metals are metals or alloys that do not include iron (or iron allotropes, such as ferrite, etc.) in significant quantities. Non-ferrous metals are employed because they have desired qualities like reduced weight (for example, aluminium), greater conductivity (for example, copper), non-magnetic characteristics, or corrosion resistance (for example, zinc), even though they are often more expensive than ferrous metals. In the iron and steel sectors, several non-ferrous materials are also employed. Bauxite, for instance, is used as a flux in blast furnaces, whereas wolframite, pyrolusite, and chromite are utilised to create ferrous alloys.

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Answer:

Predictions:

1. Half of the world will be cold and the other half will be hot, which will cause unbalanced state of climate on Earth.

2. The whole world will start to get hotter and there will be no winters or rain which causes water shortage, unable to grow crops. Polar ice is melting is an example.

3. Floods can come, because water level in sea is rising and it could kill all of us.

4. Earthquake can occur because in the Bible Jesus tells about earthquakes, etc at the second coming of Jesus.

Explanation:

Readers may want to continue reading a work if they are intrigued by the characters, interested in the plot, or invested in the themes and messages presented.

In general, act sets the stage for the rest of the work, introducing key characters, establishing conflicts, and setting the tone and mood.

If a reader finds these elements compelling or engaging, they may be motivated to continue reading to see how the story unfolds and how the characters develop. Additionally, Act I may introduce questions or mysteries that pique the reader's curiosity and encourage them to keep reading to find the answers.

Thus, a reader may want to continue reading a work if they are in interested in the plot.

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Answer:

A thermodynamic quantity equivalent to the capacity of a system to do work.

Explanation:

According to the observations, work of scientist uses evidence while work of an engineer uses a practical approach.

Observations are defined as a set of statements or facts which are recorded while conducting an experiment.Observations are made through sensing changes in the variables of the experiment.

It is specifically defined as an act of knowing or recording the changes in the variables of the experiment.Recording observations holds importance as recording observations avoid the experiment to be repeated over and over again.

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Therefore, you would need to weigh approximately 5.16 grams of Au(III) nitrate to obtain exactly 3.00 grams of gold atoms.

To calculate the grams of Au(III) nitrate needed to obtain 3.00 grams of gold atoms, you'll need to consider the molar mass and stoichiometry.

First, find the molar mass of Au(III) nitrate (Au(NO3)3) by adding the atomic masses of each element:

Au (197 g/mol) + 3x N (14 g/mol) + 9x O (16 g/mol)

= 339 g/mol.

Next, determine the ratio of gold atoms to Au(III) nitrate in the balanced chemical equation. In this case, it's 1:1.

Now, divide the molar mass of Au(III) nitrate by the molar mass of gold atoms (197 g/mol) to get the ratio of grams of Au(III) nitrate to grams of gold atoms:

339 g/mol ÷ 197 g/mol = 1.72 g/mol.

Finally, multiply the ratio by the desired amount of gold atoms (3.00 g) to find the grams of Au(III) nitrate needed:

1.72 g/mol x 3.00 g = 5.16 grams.

Therefore, you would need to weigh approximately 5.16 grams of Au(III) nitrate to obtain exactly 3.00 grams of gold atoms.

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The aluminium sample that would react most rapidly with the copper sulfate solution under the same conditions of temperature and pressure would be the powder.

Thus, the correct answer is the powder (C).

The powder hаs the lаrgest surfаce аreа аvаilаble for reаction, аllowing for more collisions between the аluminum аtoms аnd the copper sulfаte solution. The copper sulfаte is аn inorgаnic compound thаt combines sulfur with copper. The greаter the surfаce аreа, the fаster the reаction rаte. Therefore, the powder would reаct most rаpidly compаred to the pellets, grаm, or ribbon.

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Answer:

At -20°C the mercury state will be liquid

Explanation:

The melting point of a substance is the temperature at which it changes from solid state to a liquid state, and the boiling point is the temperature at which it changes from liquid state to a gaseous state.

If mercury melts at -39°C and boils at 356.9°C, it means that if the temperature is lower than -39°C, mercury will remain al solid state. Between -39°C and 356.9°C, the state of mercury will be liquid and, above 356.9°C mercury will remain at gaseous state.

So, at -20°C the mercury state will be liquid, because that temperature it is between -39°C and 356.9°C.