which type of bond involves 2 different metals?

A. ionic
B. Covalent
C.Metallic
D. Bonding would not occur​

Answer:

The concentration of the nitric acid (HNO3) solution is 72 M.

Explanation:

To determine the concentration of the nitric acid solution, we can use the concept of stoichiometry and the equation of the neutralization reaction between nitric acid (HNO3) and sodium hydroxide (NaOH):

HNO3 + NaOH → NaNO3 + H2O

The balanced equation shows that the molar ratio between HNO3 and NaOH is 1:1. This means that 1 mole of HNO3 reacts with 1 mole of NaOH.

Given:

Volume of HNO3 solution = 10.0 ml

Volume of NaOH solution = 3.6 ml

Molarity of NaOH solution = 0.2 M

To find the concentration of the HNO3 solution, we need to calculate the number of moles of NaOH used in the neutralization reaction:

moles of NaOH = volume of NaOH solution * molarity of NaOH solution

= 3.6 ml * 0.2 M

= 0.72 mmol (millimoles)

Since the molar ratio between HNO3 and NaOH is 1:1, the number of moles of HNO3 in the solution is also 0.72 mmol.

Now, we can calculate the concentration of the HNO3 solution using the formula:

concentration (in M) = moles of solute / volume of solution (in L)

concentration = 0.72 mmol / 0.010 L

= 72 mmol/L

= 72 M

Therefore, the concentration of the nitric acid (HNO3) solution is 72 M.

Answer:

50

Explanation:

atomic mass of an element is the sum of protons and neutrons as electro is negligible in weight.

The best description of the relationship between population size, carrying capacity, and limiting factors is: "The size of a population usually stays near its carrying capacity due to limiting factors."

Carrying capacity refers to the maximum number of individuals that a particular environment can sustainably support. It represents the limit to which a population can grow given the available resources, such as food, water, and habitat. Limiting factors, on the other hand, are the factors that restrict population growth by reducing birth rates, increasing death rates, or limiting access to resources.As a population approaches its carrying capacity, limiting factors come into play and regulate the population size. These limiting factors can include competition for resources, predation, disease, availability of suitable habitat, and other environmental factors. They act as checks on population growth, preventing it from exceeding the carrying capacity of the ecosystem.

Therefore, the size of a population usually stays near its carrying capacity because the limiting factors ensure that the population does not exceed the available resources and ecological limits of the environment. If the population surpasses the carrying capacity, the limiting factors will intensify, causing a decline in resources and an increase in mortality rates, which ultimately brings the population back towards the carrying capacity.It's important to note that the relationship between population size, carrying capacity, and limiting factors is dynamic and can vary depending on various ecological and environmental factors.

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Answer:

HI is the Arrhenius acid

CsOH is the Arrhenius base

Explanation:

Acid-Base reactions are reactions that involve the transfer of protons.

Arrenhius Acids

Arrenhius acids are molecules that have an H⁺ ion. In an acid-base reaction, the acid will donate the H⁺ ion to the base. The molecule HI (called hydroiodic acid) is the acid because it has an H⁺ ion. Note that an H⁺ ion is simply a proton because it has no electrons or protons.

H₂O can also be considered an Arrhenius acid because it does have an H⁺ ion, but it is a very weak acid.

Arrenhius Bases

Arrhenius bases are molecules that have an OH⁻ ion. In an acid-base reaction, the base will accept an H⁺ ion. The molecule CsOH (called cesium hydroxide) is the base because it has an OH⁻ ion. The OH⁻ ion is one of the most common polyatomic ions and is called hydroxide.

H₂O can also be considered an Arrhenius base because it has an OH⁻ ion. However, it is a weak base. Still, water is very important to acid-base reactions because it can be either an acid or a base.

In the reaction HI + CsOH + H2O, HI is the Arrhenius acid and CsOH is the Arrhenius base.

In the given reaction HI + CsOH + H2O, HI is the Arrhenius acid and CsOH is the Arrhenius base. In the Arrhenius theory of acids and bases, an acid is a substance that produces hydrogen ions (H+) in aqueous solution, while a base is a substance that produces hydroxide ions (OH-) in aqueous solution. HI can dissociate in water to produce H+ ions, making it an acid. CsOH can dissociate in water to produce OH- ions, making it a base.

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Explanation:

the sum of PE and KE is mechanical energy this means energy during motion and position I think the answer is motion and stored or it may be internal

Answer:

a

Explanation:

i did the test

The energy of the photon of light can be obtained as 6.27 * 10^-20 J.

We know that a photon has to to do with a particular unit of light. We know that light can be said to be composed of very tiny corpuscles and these corpuscles of light is what we call the photon of the light.

We can be able to us the equation that is derived by Max Plank to be able to get the value of the energy of the photon of light. Now we know that a photon of light can have an energy that is able to be obtained by;

E = hf

h = Plank's constant

f = Frequency

Then;

E = 6.6 * 10^-34 Js * 9.5 * 10^13 Hz

= 6.27 * 10^-20 J

Thus as we can see from the parameters in the question, the energy of the photon is 6.27 * 10^-20 J.

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there are 3.7503824 moles in 245.2g of zinc

According to the NOAA, the key messages in the Nevada State Climate Summary article form are:

The National Oceanic and Atmospheric Administration (NOAA) is a federal agency tasked with understandind and predicting changes in climate, weather, ocean, and coasts, as well as disseminating this information to the necessary bodies for action.

According to the NOAA, the key messages in the Nevada State Climate Summary article form are:

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The equilibrium constant for the reaction given that the equilibrium concentration of [PH₃] = 0.250 M, [H₂] = 0.580 M, and [P₄] = 0.750 M is 7.3

From the question given above, the following data were obtained:

The equilibrium constant for the reaction can be obtained as shown below:

Equilibrium constant = [Product]ᵐ / [Reactant]ⁿ

Where

Equilibrium constant = [H₂]⁶[P₄] / [PH₃]⁴

Equilibrium constant = [(0.580)⁶ × 0.750] / (0.250)⁴

Equilibrium constant = 7.3

Thus, the equilibrium constant for the reaction is 7.3

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Answer:

128.4 m

Explanation:

3.604m + 104.29m + 3.1m + 17.41m

Add all the values

= 128.404 m

The significant figure rule for addition is for the sum to have the same number of decimal places as the value with the least number of decimal places. In the addition sentence 3.604m + 104.29m + 3.1m + 17.41m, the value with the least number of decimal places is 3.1, which has 1 decimal place. Therefore, we round our sum so that it also has 1 decimal place.

128.404 m

= 128.4 m

I hope this helps!

The Number of atoms per unit cell for Ga = 4 atoms per unit cell. Number of atoms per unit cell for As = 4 atoms per unit cell. Volume density of Germanium in its unit cell = 4.35 × 10²² /cm³

According to published data, GaAs has a number density of 4.42 x 10²²atoms/cm³.

Because it is well known that Ga and As are essentially equally distributed throughout GaAs.

Ga's number density is equal to As's number density (2.21 x 10²² atoms/cm³).

Volume of the unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³

a) Number of atoms per unit cell for Ga and As = number density × volume of unit cell = 2.21 × 10²² × 1.804 × 10⁻²² = 4 atoms/unit cell

b) Volume density = Number of atoms per unit cell/volume of unit cell

A germanium unit cell contains 8 atoms (from literature)

Volume of unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³

Volume density = 8/(1.804 × 10⁻²²) = 4.35 × 10²² /cm³

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The concentration of the solution if the absorbance of the solution at 427 nm is 0.15 and the molar absorptivity of yellow dye at 427 nm is 5.47 × 10-⁶M.

Absorbance in physics is a logarithmic measure of the amount of light that is absorbed when passing through a substance.

It is the capacity of a substance to absorb light of a given wavelength. According to this question, the absorbance of the solution at 427 nm is 0.15.

A = εmCl

Where;

C = 0.15 ÷ (27400 × 1)

C = 5.47 × 10-⁶M

Therefore, 5.47 × 10-⁶M is the concentration of the solution.

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Answer:

c. match the number of each element in the name.

Explanation:

For making the formula of covalent compound, we must write the symbol of the first element of covalent compound and then write the name of the second element and add the suffix with the symbol of second element. Also put the number of each element with the name which indicates the quantity of elements that take part in forming new covalent compound.

Taking into account the reaction stoichiometry and molarity, 10.17 mL of 0.32 M H₂C₂O₄ is required to titrate 15.50 mL of 0.21 M Mg(OH)₂.

In first place, the balanced reaction is:

H₂C₂O₄ + Mg(OH)₂ → MgC₂O₄ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

\(Molarity=\frac{number of moles}{volume}\)

Molarity is expressed in units \(\frac{moles}{liter}\).

In this case, you know:

Replacing in the definition of molarity:

\(0.21 M=\frac{number of moles}{0.0155 L}\)

Solving:

number of moles= 0.21 M× 0.0155 L

number of moles= 0.003255 moles

So, you must titrate 0.003255 moles of Mg(OH)₂.

The following rule of three can be applied: If by reaction stoichiometry 1 mole of Mg(OH)₂ react with 1 mole of H₂C₂O₄, 0.003255 moles of Mg(OH)₂ react with how many moles of H₂C₂O₄?

\(amount of moles of H_{2} C_{2} O_{4} =\frac{0.003255 moles of Mg(OH)_{2} x1 mole of H_{2} C_{2} O_{4}}{1mole of Mg(OH)_{2}}\)

amount of moles of H₂C₂O₄= 0.003255 moles

0.003255 moles of H₂C₂O₄ is required to titrate 15.50 mL of 0.21 M Mg(OH)₂.

In this case, you know:

Replacing in the definition of molarity:

\(0.32 M=\frac{0.003255 M}{volume}\)

Solving:

0.32 M× volume= 0.003255 moles

volume= 0.003255 moles÷ 0.32 M

volume= 0.01017 L= 10.17 mL (being 1 L= 1000 mL)

Finally, 10.17 mL of 0.32 M H₂C₂O₄ is required to titrate 15.50 mL of 0.21 M Mg(OH)₂.

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The net ionic equation for the reaction between potassium sulfide and magnesium iodide is S2- + Mg2+ -> MgS, as the potassium and iodide ions are spectator ions and do not participate in the reaction.

To determine the net ionic equation for the reaction between potassium sulfide (K2S) and magnesium iodide (MgI2), we first need to identify the ions present in each compound and then determine the products formed when they react.

Potassium sulfide (K2S) dissociates into two potassium ions (K+) and one sulfide ion (S2-):

K2S -> 2K+ + S2-

Magnesium iodide (MgI2) dissociates into one magnesium ion (Mg2+) and two iodide ions (I-):

MgI2 -> Mg2+ + 2I-

Now, we need to determine the possible products when these ions combine. Since potassium (K+) has a +1 charge and iodide (I-) has a -1 charge, they can combine to form potassium iodide (KI):

K+ + I- -> KI

Similarly, magnesium (Mg2+) and sulfide (S2-) can combine to form magnesium sulfide (MgS):

Mg2+ + S2- -> MgS

Now, we can write the complete ionic equation by representing all the ions present before and after the reaction:

2K+ + S2- + Mg2+ + 2I- -> 2KI + MgS

To obtain the net ionic equation, we remove the spectator ions, which are the ions that appear on both sides of the equation and do not participate in the actual reaction. In this case, the spectator ions are the potassium ions (K+) and the iodide ions (I-).

Thus, the net ionic equation for the reaction between potassium sulfide and magnesium iodide is:

S2- + Mg2+ -> MgS

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In comparison to the "P" alkalinity, the "T" alkalinity will be higher.

The "P" alkalinity of a sample is determined by the amount of hydrogen ions (\(H^+\)) that are neutralized by the anions present. The "T" alkalinity of a sample is determined by the amount of hydroxide ions (\(OH^-\)) that are neutralized by the cations present. In a sample where the only anion contributing to alkalinity is hydroxide ion, \(OH^-\), the "P" alkalinity will be zero since there are no hydrogen ions (\(H^+\)) to be neutralized. However, the "T" alkalinity will be equal to the amount of hydroxide ions (\(OH^-\)) present since all of the \(OH^-\) ions will be neutralized by the cations present. Therefore, in this case, the "T" alkalinity will be greater than the "P" alkalinity.

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Answer:

Growing population

The worlds developing regions will see 1.2 billion people added, a 20.7% increase; while the population of developed countries will increase a mere 3.3% adding 41 million to the current 1.3 billion people.

Either cell type is susceptible to mutations. A mutation is called a germinal mutation if it occurs in a germ cell and affects a gene.

Germline genetic mutations are inheritable. The DNA is altered in reproductive cells in this kind of mutation (egg or sperm). The mutation is inherited because sperm and eggs are passed down from parents to their offspring.

The transmission of germ-line mutations to an organism's progeny occurs during sexual reproduction and occurs in reproductive cells (sperm or eggs). Non-reproductive cells can develop somatic mutations; during mitosis, they are transferred to daughter cells but are not passed on to the offspring during sexual reproduction.

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Answer:

The medical philosophy of the ancient Greeks in which the state of health and disease was determined by the four body “humours”—blood, yellow and black bile, and phlegm—and their relationships with the four elemental humours—air, fire, earth and water. Segen's Medical Dictionary.

Explanation:

Answer:

follow the above attachment.

Explanation:

hope this will help...

Answer:

protons: 24

neutrons: 29

electrons: 24

Explanation:

Answer:

electric energy then chemical energy

Explanation:

A battery is a device that converts chemical energy

The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.

In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.

The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.

During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.

The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.

The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.

In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.

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Answer:

Ammonia can be prepared using Haber process based on the following equation:

3H2 + N2 <.........> 2NH3Explanation:

The reaction above talks about the production of ammonia NH₃

To solve this question, we'll begin by writing the balanced equation for the reaction between H₂ and N₂. This is illustrated below:

3H₂ + N₂ —> 2NH₃

From the balanced equation above,

3 moles of H₂ reacted to produce 2 moles of NH₃.

Therefore, 26 moles of H₂ will react to produce = (26 × 2)/3 = 17.3 moles of NH₃.

Thus, 17.3 moles of NH₃ were obtained from the reaction.

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Answer:

there is no shift in the state

Explanation:

The correct answer is - There is no shift in the state.

Reason -

If K > Q, a reaction will proceed forward, converting reactants into products.  If K < Q, the reaction will proceed in the reverse direction, converting products into reactants.  If Q = K then the system is already at equilibrium.

where Q, is the reaction Quotient