Predict the formula for each ionic compoundsilver phosphide:radium phosphate:gallium iodide:

Answer: 0.27 moles of CO2 and 11.88 grams of CO2

Explanation: Use the Ideal Gas Law, PV = nRT, substitute the values given and solve.

I can't seem to upload procedure but:

P = 1.5atm

V = 4.5L

n = moles

R = 0.0821gr/mol (when using atm, kPa is 8.31)

T = 300K

Isolate what you don't have, in this case n. Change PV = nRT to PV/RT = n. Substitute the values to get moles. Once you have this, multiply the value by the molar mass of CO2 (44gr/mol) to get the mass of CO2 in grams.

Answer:

D The number of protons

Hydrochloric acid would be classified as an acid to the Arrhenius definition due to giving of hydrogen ions.

According to Arrhenius concept, hydrochloric acid is an acid which gives hydrogen ions in water while on the other hand, according to Bronsted-Lowry theory, hydrochloric acid is an acid that donates a proton to the water molecule.

So we can conclude that hydrochloric acid would be classified as an acid to the Arrhenius definition due to giving of hydrogen ions.

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Any substance that increases the concentration of \(H^+\) in aqueous solutions is Arrhenius's acid.

Arrhenius define acids as substances with the chemical capacities to increase the concentration of hydrogen ion in aqueous solutions.

Thus, substances like HCl, HNO3, HBr, etc. would be considered an acid. This is because they ionize in aqueous solutions as follows:

HCl ---> \(H^+\) + \(Cl^-\)

\(HNO_3 --- > H^+ + NO_3^-\)

\(HBr --- > H^+ + Br^-\)

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When two oppositely charged particles are closer together, they have a stronger attraction toward one another than if they are farther apart.

The electrostatic force, which is the force of attraction or repulsion between two charged particles, is the cause of this attraction. The magnitude of the electrostatic force between two charged particles is inversely proportional to the square of the distance between them and directly proportional to the product of their charges.

The inverse square law states that as the distance between two charged particles moves closer together, the electrostatic force between them grows as a result of a smaller denominator. Therefore, the stronger the attraction between two oppositely charged particles will be the closer they are.

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Answer: Industrial processes including mining and manufacturing historically have been leading causes of soil pollution. Industrial areas typically have much higher levels of trace elements and organic contaminants. This is due to intentional and unintentional releases from industrial processes directly into the environment, including to the soil, adjacent water bodies, and the atmosphere.

Explanation:

Answer:

increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object would make the oppositely charged objects attract each other more.

The observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

From the observation that the hole in the window is smaller on the outside than on the inside, Becca, as a forensic technician, might deduce the following:

The hole was caused by an impact from the outside: The smaller outside hole suggests that the force that created the hole originated from the outside and exerted more pressure on the window surface facing inward.

The object causing the hole was larger on the inside: The discrepancy in hole sizes implies that the object that struck the window had a larger size or diameter on the inside, and as it penetrated the glass, it compressed or fragmented the glass, resulting in a larger hole on the inside.

The object may have passed through the window: The difference in hole sizes indicates that the object may have penetrated the window, potentially passing through to the inside. This could suggest a break-in or an incident involving the window being struck from the outside.

Overall, the observation of a smaller outside hole than inside leads Becca to infer that an impact from the outside caused the hole, with a larger object striking and passing through the window from the inside.

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Answer:

C. digestive; circulatory

Explanation:

It is the correct answer..

KCl → k+ + Cl. The ensuing aggregate of ions is identical in each pre-and publish-blend unit of compounds. both comprise Na+, Cl-, okay+, and Br- ions, and no insoluble compounds can result from any mixture of those ions.

The three rules for writing net ionic equations are simply pretty trustworthy. only do not forget to break apart the (aq) substances. best split strong electrolytes.

Delete any ions that seem on both sides of the equation. when an aqueous solution of potassium chloride KCl, while combined with silver nitrate AgNO3 answers insoluble AgCl forms as a white substance. this is an example of a double displacement reaction. due to the fact potassium ion and silver ions displace collectively in the product formation.

The net ionic equation is a chemical equation for a response that lists best those species collaborating inside the reaction. The internet ionic equation is generally utilized in acid-base neutralization reactions, double displacement reactions, and redox reactions.

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Answer:

I think the answer is b

Explanation:

the paragraph states, that it is an experiment to see if there is any oxygen in the water

The amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C is 33,440 Joules.

To find the amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C, we can use the equation Q = mcAT.
First, we need to find the value of m, which is the mass of the water in grams. In this case, it is given as 200 grams.
Next, we need to find the value of AT, which is the change in temperature in degrees Celsius.

This can be calculated by subtracting the initial temperature from the final temperature, which gives us 60 C - 20 C = 40 C.
The specific heat capacity of water, C, is given as 4.18 Joules per gram per degree Celsius.
Now we can plug in the values into the equation:
Q = mcAT
Q = (200 g) x (4.18 J/g°C) x (40°C)
Q = 33,440 J
Therefore, the amount of heat energy absorbed when 200 grams of water are heated from 20 C to 60 C is 33,440 Joules.

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The diameter of the spherical nucleus of hydrogen-1 atom is 1 x 10^-13 cm. The density (g/cm3) of matter in a proton of mass of proton is 1.673 x 10^-24 is 3.193 × 10¹⁵ g/cm³.

The density of a substance is its mass per unit volume. The most common symbol for density is, but the Latin letter D can also be used. Density is defined mathematically as mass divided by volume.

Diameter = 1 x 10⁻¹³ cm

Mass = 1.673 x10⁻²⁴ g

Volume = 4/3πr³

Volume = 4/3 × 22/7 × (1 × 10⁻¹³ / 2)³

Volume = 11 × 10⁻³⁹ / 21

Density = Mass / Volume

           = 1.673 x10⁻²⁴ / 11 × 10⁻³⁹ / 21

Density = 3.193 × 10¹⁵ g/cm³

Thus, the density (g/cm3) of matter in a proton of mass of proton is 1.673 x 10^-24 is 3.193 × 10¹⁵ g/cm³.

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40567⁰ kkkkkkkkkkkkkkkkkkkkkkmeow

Explanation:

cuz I got a 100

Answer:

325

Explanation:

velocity = 3250 Hz x 0.1 m

Answer:

325

Explanation:

Answer:

We need more? What else is in the question? This is unanswerable.

Explanation:

Answer:

What is surface tension?...Surface tension is the surface of film of any kind of liquid caused by attraction of the particles in its surface layer. This bulk of liquid is something that tends to minimize surface areas.

The conversions that could be performed with these two conversion factors alone, Density—> molar mass or/formula mass—> is volume ---> moles; option D

Conversion factors are expressions or values which are used to convert from one unit or value to another.

The conversion factor given is:

Density—> molar mass or/formula mass—>

volume = density/mass

moles = mass/molar mass

Volume to moles = density/mass -->  mass/ molar mass

Volume to moles = density ---> molar mass or formula mass

The conversion of volume to moles will therefore require density and molar mass or formula.

In conclusion, conversion factors are used to convert from one unit  value to another.

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Answer:

The answer is "0.0000190 and 2.7 J".

Explanation:

\(\to P_4=\frac{e^{-\beta}(4+\frac{1}{2}) hev}{2vb}\\\\\)

         \(=\frac{e^{-9(1.35)}}{0.278v}\\\\=\frac{e^{-12.5}}{0.278}\\\\=\frac{0.000005285}{0.278}\\\\=0.0000190\)

Given:

\(h=6.626 \times 10^{-34}\\\\c=3\times 10^{10}\\\\v=558\ cm^{-1}\\\\K=1.38 \times 10^{-23}\\\\ T=298\\\\\)

\(E=\frac{hcv}{KT}\\\\\)

by putting the value into the above formula so, the value is 2.7 J  

The mass of 4.640 x \(10^{2}\) L particles of Aluminium is 33.67 g

The total number of molecules present in 22.4 litres of an element is equal to Avagadro's Number.

The value of Avagadro's number = \(6.023*10^{23}\).

To calculate the mass of \(4.640*10^{2}\) litres of Al, we first need to find the number of molecules present in it, then find the product of the number of molecules present will the mass of one molecule of Al atom.

Mass of Al=27

Number of molecules in 22.4 litres of Al = \(6.023*10^{23}\)

Number of molecules in 1 litre of Al =  \(\frac{6.023*10^{23}}{22.4}\)

Number of molecules in \(4.640*10^{2}\) litres of Al=  \(\frac{{6.023*10^{23}*4.640*10^{2}}}{22.4}\)

=\(1.247*10^{21}\)

Mass of \(1.247*10^{21}\) molecules of Al:

= \(1.247*10^{21}*27\) g

=33.669 g

=33.67 g

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For compounds with weak Intermolecular forces, like Van der Waals force, one property that these compounds will have is that they are very easy to separate, since they don't have the strength to stick together, therefore, if we can separate the particles easily, we can turn this compound into liquid or gas easily as well. The best answer for this question will be letter A, they evaporate quickly

Answer:

Maximum expected yield = 87.2%

Explanation:

Equations of reactions:

Main reaction: N₂O₄(l) + 2N₂H₄(l) ---> 3N₂(g) + 4H₂O(g)

Side reaction:  2N₂O₄(l) + N₂H₄(l) ----> 6NO(g) + 2H₂O(g)

Molar mass of N₂O₄ = 92 g/mol; molar mass of N₂H₄ = 32 g/mol; molar mass of N₂ = 28 g/mol; molar mass of of NO = 30 g/mol; molar mass of water = 18 g/mol

In the main reaction, 92 g of N₂O₄ reacts with 2 * 32 g of N₂H₄ to produce 3 * 14 g of N₂.

101.1 g of N₂O₄ will react with 2 * 32 * 101.1 / 92 g of N₂H₄ = 70.33 g of N₂H₄

N₂O₄ is the limiting reactant

101.1 g of N₂O₄ will react to produce 3 * 14 * 101.1 / 92 g of N₂ =  46.15 g of  N₂

In the side reaction, (6 * 30 g) of NO  is produced  from (2 * 92 g) of N₂O₄ and 32 g of N₂H₄

12.7 g of N₂O₄ will be produced from ( 2 * 92 * 12.7/180 g) of N₂O₄ and (32 * 12.7/180) g of N₂H₄ to produce

mass of N₂O₄ used = 12.98 g

mass of N₂H₄ used = 2.26 g

mass of N₂O₄ left for main reaction = 101.1 - 12.98 = 88.12 g

mass of N₂H₄ left for main reaction = 101.1 - 2.26 = 98.84 g

In the main reaction, 92 g of N₂O₄ reacts with 2 * 32 g of N₂H₄ to produce 3 * 14 g of N₂

88.12 g of N₂O₄ will react with 2 * 32 * 88.12 / 92 g of N₂H₄ = 61.30 g of N₂H₄

N₂O₄ is the limiting reactant.

88.12 g of N₂O₄ will to react produce 3 * 14 * 88.12 / 92 g of N₂ =  40.23 g of  N₂

Percentage yield = (theoretical yield/actual yield) * 100%

Percentage yield = (40.23/46.15) * 100% = 87.2%

Therefore, maximum expected yield = 87.2%

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 2.78g  is the mass of HCl.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

Molarity= number of moles of solute/volume of solution in litre

Where,

moles= given weight /by molecular weight

         = w/ 36.46

Substituting values in equation 1

0.612=(w/36.46)/( 125/1000)

w=0.80g

Therefore, 2.78g is the mass of HCl.

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The structure illustrated here is butanone

Butanone, also known as methyl ethyl ketone (MEK), is a solvent that is commonly used in industrial applications such as in the manufacture of plastics, textiles, and paints. It is also used as a solvent in the production of adhesives, and as a cleaning agent for electronic components.

Butanone's importance lies in its versatile properties as a solvent, which make it essential in the production of many consumer goods and industrial products. Its high solvency power and fast evaporation rate make it particularly useful in applications where rapid drying and bonding are required.

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Answer:

The first one is Butanone and the second one is Propenal

Explanation:

Just did it on Edge2023!

Answer:

The process in which energy is emitted by one object ,transmitted through .......

Answer:the process in which energy is emitted by one object, transmitted through space, and absorbed by another

Explanation: took the test