Write the formulas for the following compounds:a. mercury(II) nitrateb. ammonium phosphatec. calcium silicated. lead(II) chromate

The chemical equation for the reaction between liquid nonane and gaseous oxygen is: C9H20 (l) + 14 O2 (g) → 9 CO2 (g) + 10 H2O (l)

The phases in the equation are:
- (l) for liquid nonane and liquid water
- (g) for gaseous oxygen and gaseous carbon dioxide.

When liquid nonane (C9H20) reacts with gaseous oxygen (O2) to form gaseous carbon dioxide (CO2) and liquid water (H2O), the balanced chemical equation can be expressed as:

C9H20(l) + 14O2(g) → 9CO2(g) + 10H2O(l)

In this equation, the phases are as follows:
- Liquid nonane (C9H20): liquid (l)
- Oxygen (O2): gas (g)
- Carbon dioxide (CO2): gas (g)
- Water (H2O): liquid (l)

To learn more about gaseous carbon dioxide click here

brainly.com/question/30630719

#SPJ11

The mass of 3.15 mol of AgNO₃ is 533.6 grams, the mass of 0.0901 mol of CaCl₂ is 10.02 grams, and the mass of 11.86 mol of H₂S is 404.5 grams.

To calculate the mass in grams of each of the given substances, we need to use the molar mass of each compound. The molar mass of AgNO₃ (silver nitrate) is 169.87 g/mol, the molar mass of CaCl₂ (calcium chloride) is 110.98 g/mol, and the molar mass of H₂S (hydrogen sulfide) is 34.08 g/mol.

To calculate the mass of 3.15 mol of AgNO₃, we can use the following formula:

mass = moles x molar mass
mass = 3.15 mol x 169.87 g/mol
mass = 533.6 g

Therefore, the mass of 3.15 mol of AgNO₃ is 533.6 grams.

Similarly, to calculate the mass of 0.0901 mol of CaCl₂, we can use the formula:

mass = moles x molar mass
mass = 0.0901 mol x 110.98 g/mol
mass = 10.02 g

Therefore, the mass of 0.0901 mol of CaCl₂ is 10.02 grams.

Finally, to calculate the mass of 11.86 mol of H₂S, we can use the formula:

mass = moles x molar mass
mass = 11.86 mol x 34.08 g/mol
mass = 404.5 g

Therefore, the mass of 11.86 mol of H₂S is 404.5 grams.

To know more about mass, refer to the link below:

https://brainly.com/question/14200145#

#SPJ11

Answer:

Explained below

Explanation:

They are different simply in terms of how they are formed. An intrusive igneous rock is formed as a result of magma being pushed into the rock right below the earth's surface while an extrusive rock is formed as a result of lava erupting onto the surface of earth.

Both rocks are similar in terms of appearance because they both have crystals. Intrusive has large crystals while extrusive has small crystals.

The work done on the gas mixture is 297KJ.

W = -Pext(Vf-Vi)

P = 61.0 atm

Vi = 99.0 L

Vf = 51.0 L

put values in above expression

W = -Pext(Vf-Vi)

W = -61.0atm (51.0L - 99.0L)

W = 2928 atm.L

W = 2928 *101.33 J

W = 296694 J

W = 296.7 KJ

W = 297 KJ

In physics, work is the energy transferred to or from an item through the application of pressure alongside displacement. In its most effective form, for a consistent pressure aligned with the route of motion, it equals the manufactured from the force strength and the space traveled.

Work modifications the quantity of mechanical and internal energy possessed by gadgets. Whole work is achieved on a machine or item, energy is introduced to it.

The character of the work achieved can be categorized into three classes. they are +ve work, -ve work, and zero work. The character of work relies upon the perspective of pressure and displacement.

Learn more about Work here:-https://brainly.com/question/25573309

#SPJ4

Answer:

4.14516129 g/mL

Explanation:

The density can be found with the following formula.

\(d= \frac{m}{v}\)

where \(m\) is the mass and \(v\) is the volume.

We know the mass is 25.7 grams. We must find the volume.

The volume is equal to the volume of water that is displaced. Subtract the initial volume from the final volume.

⇒ final volume - initial volume

The initial volume is 35.5 mL and the final volume is 41.7 mL.

⇒ 41.7 mL - 35.5 mL

⇒ 6.2 mL

The volume of the aluminum piece is 6.2 mL.

Now we know the mass and the volume.

\(m= 25.7 g\\v=6.2 mL\)

Substitute the values into the formula.

\(d=\frac{m}{v}\)

\(d=\frac{25.7 g}{6.2 mL}\)

\(d=4.14516129 g/mL\)

The density of the aluminum sample is 4.14516129 g/mL

When two items with different temperatures come into touch with one another, energy moves from the hotter (higher temperature) object to the cooler (lower temperature) object until both objects reach the same temperature.

To learn more anout Potential energy, refer to:

https://brainly.com/question/14427111

Answer: thermal energy is transferred from the warmer substance to the cooler substance

Explanation:

Answer:

Transmission means light waves bending when it enters a different medium

Explanation:

The question is incomplete, the complete question is;

As Danny was pouring cereal for his breakfast, he noticed that the cereal box says that the cereal contains 5 milligrams of iron per serving. Danny decided to perform an experiment to test this claim. He found that the cereal contains 4.6 milligrams of iron per serving. Based on Danny's measurement, the value reported on the label is ( CORRECT OR INCCORECT) because A: (IT IS DIFFERENT FROM THE VALUE DANNY MEASURED) B: (IT IS REORTED TO THE NEAREST MILLIGRAM) C: (IT USES THE SAME UNITS THAT DANNY USED).

Answer:

CORRECT because IT IS REORTED TO THE NEAREST MILLIGRAM

Explanation:

In mathematics, values may be rounded up or down as required. In the case of this measurement of cereals by Danny, it is customary to measure the amount of iron per serving to the nearest milligram.

As such, even though Danny found out that the actual amount of iron per serving in the cereal is 4.6 milligrams, the value reported on the cereal box is still correct because it was reported to the nearest milligram hence the value had to be rounded up.

Answer:

The Bohr model shows the atom as a small, positively charged nucleus surrounded by orbiting electrons. The Bohr model is simpler and relatively easy to understand. So,we learn the Bohr Model.

Leak testing a low-pressure refrigeration system with nitrogen in excess of 10 psig could cause: The system's pressure relief valves.

If a low-pressure refrigeration system is leak tested with nitrogen at a pressure exceeding 10 psig (pounds per square inch gauge), it could cause the system's pressure relief valves to fail.

Pressure relief valves are safety devices installed in refrigeration systems to protect against excessive pressure buildup. They are designed to open and release excess pressure when the system reaches a certain threshold to prevent damage or failure of the system.

When leak testing with nitrogen, it is crucial to ensure that the pressure does not exceed the recommended limits specified by the manufacturer or industry standards.

Exceeding the pressure limits can lead to the overloading of pressure relief valves, causing them to open prematurely or malfunction. This can compromise the safety of the system and potentially result in equipment damage or even personal injury.

It is important to follow proper procedures and guidelines for leak testing refrigeration systems to maintain their integrity and safety.

This includes adhering to recommended pressure limits and utilizing appropriate equipment and techniques to detect and repair any leaks.

To know more about "Refrigeration system" refer here:

https://brainly.com/question/12950632#

#SPJ11

1. Valency of oxygen is 2.

=> This statement is true.

As, atomic number of oxygen is 8. So, it have 2 electrons in its first shell and 6 electrons in second or valence shell. To complete its valence shell, oxygen needs 2 more electrons to complete shell of 8 electrons. So, valency of oxygen is 2.

2. The number of atoms of each element should be same on each side of Balanced equation.

=> This statement is true.

In a balanced reaction, the number of atoms in the reactant side must be equal to number of atoms in product side. If number of atoms are equal on both sides, then we can say that the reaction is balanced.

Answer:

The elemental analysis of the cell constituents shows that a cell comprises carbon, oxygen, hydrogen, nitrogen, phosphorus, etc. Proteins, Carbohydrates, Fats, Nucleic acids are known as Biomolecules. What are Biomolecules? Biomolecules are defined as any organic molecule present in a living cell which includes carbohydrates, proteins, fats etc.

Explanation:

The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

Learn more about mixture at: https://brainly.com/question/12160179

#SPJ1

Answer:

Yes. Weight is the product of mass times gravitational acceleration. So all you have to do is vary the gravitational field and you vary weight.

Explanation:

A unit cell can be visualized as a building block that, when replicated in all directions, creates the entire crystal lattice. Unit cells can have different shapes, the most common types of unit cells include simple cubic, body-centered cubic, and face-centered cubic etc.

(a) Definition of a unit cell: A unit cell is the basic repeating unit of a crystal lattice. It represents the smallest portion of a crystal that, when stacked together, can generate the entire crystal structure.

(b) Sketch of a body-centered cubic (BCC) unit cell is represented in the image below. In the BCC unit cell, atoms are located at the eight corners of the cube and one atom is positioned at the center of the cube.

(c) Coordination number in a BCC unit cell: The coordination number is the number of nearest neighboring atoms surrounding a central atom. In a BCC unit cell, each atom is in contact with eight nearest neighboring atoms: one in the center of the unit cell and one at each of the eight corners.

(d) Calculation for the atomic packing factor (APF) of a BCC unit cell:

The APF is calculated as the volume occupied by the atoms in the unit cell divided by the total volume of the unit cell.

For a BCC unit cell, the APF can be calculated as follows:

APF = (Number of atoms in the unit cell * Volume of each atom) / Volume of the unit cell

In a BCC unit cell, there are two atoms (one at the center and one at the corner), and the volume of each atom can be approximated as (\(4/3\)) * π * \((radius)^3\). The volume of the unit cell can be calculated as the cube of the edge length.

Learn more about crystal lattice here:

https://brainly.com/question/13008800

#SPJ11

Answer: covalent bond

Explanation: Yeah that's the answer

Answer: anion , gained

Explanation:

When an atom accepts an electron negative charge is created on atom and is called as anion.

When atom loses an electron positive charge is created on atom and is called as cation.

Phosphorous (P) has an atomic number of 15 which means it contains 15 electrons and there are 5 valence electrons.

For formation of , the atom of phosphorous (P) must gain three electrons in its valence shell 3p so as to complete its octet

\(P:15:1s^22s^22p^63s^23p^3\)

\(P^{3-}:18:1s^22s^22p^63s^23p^6\)

When in a particular titration, 5.0 ml of a 2.0 m NaOH(aq) solution exactly neutralizes 10.0 ml of an HCl(aq) solution. The concentration of the HCl (aq) solution is found to be 1M.

The balanced chemical equation is given as,

NaOH  + HCl → NaCl  +  H₂O

Number of moles of NaOH  =  molarity × volume /1000

=  5 x 2/1000  =  0.01  moles

With the help of mole ratio between NaOH to HCl which is 1 : 1

Number of moles of HCl given = 0.01 moles

Therefore, concentration = moles/volume x 1000

                                           = 0.01/10 x 1000 = 1M

Hence, the concentration of the HCl (aq) solution is 1M.

Learn more about concentration from the link given below.

https://brainly.com/question/31271061

#SPJ4

bullet fired from a gun

falling apple from tree

stone at a height

rusting of iron

loud speaker

Fuel consumption and other atoms than carbon and hydrogen, such as sulfur, nitrogen, or oxygen, have a direct impact on carbon dioxide emissions.

Charcoal, a solid, and oxygen, a gas, are the reactants in the described reaction, and carbon dioxide gas is the result. It is possible to write the chemical equation as C (s) + O2 (g) CO2 (g) Q.

Since heat is produced during the reaction, it is an exothermic reaction. As carbon and oxygen combine to generate carbon dioxide, it is a combination reaction. It is a combustion reaction because oxygen causes carbon to burn.

To know more about Fuel consumption visit:-

https://brainly.com/question/27959746

#SPJ4

The concentration of particles is also determined by particle size, with smaller particles having a higher concentration than larger particles at the same filtration rate.

The effect of filtration rate on filter performance for particles with diameters of 0.1,1.0, and 10μm using the TE filtration model is a monodisperse media of 0.5 mm diameter, porosity 0.42, particle density 1020 kg/m3, filter depth 1 m, temperature 20 ∘C, Hamaker constant Ha=10−20 J, and attachment efficiency 1.0 is assumed here.

The results of the plot are commentary on the effect of filtration rate and particle size on filter performance. The graph indicates that as the filtration rate increases, the concentration of the particle decreases. Therefore, the filter performance improves as the filtration rate increases.

As the particle diameter increases, the filtration rate and particle concentration decrease. Consequently, the filter performance declines as the particle size increases. As a result, particle size and filtration rate significantly influence filter performance.

Learn more about filtration -

brainly.com/question/29756050

#SPJ11

Answer:

7.58% (v/v) ethanol

Explanation:

I went to quizlet and that is what most of u people should do!!!

The salt that, when 1 mole is dissolved in water, produces the solution with a pH closest to 7.00 is NH4Cl.

This is because NH4Cl is an acidic salt that undergoes hydrolysis in water to produce ammonium ions (NH4+) and chloride ions (Cl-). The ammonium ions can act as a weak acid, reacting with water to form hydronium ions (H3O+), which decreases the pH of the solution.

However, the chloride ions can act as a weak base, reacting with water to form hydroxide ions (OH-), which increases the pH of the solution. The net effect is that the pH of the solution is slightly acidic, but closest to 7.00.

Among the given salts, when 1 mole is dissolved in water, potassium chloride (KCl) produces a solution with a pH closest to 7.00. This is because KCl dissociates into potassium (K+) and chloride (Cl-) ions in water, and neither ion significantly affects the pH of the solution.

To know more about hydrolysis: brainly.com/question/11461355

#SPJ11

Pathogenic bacteria are the most problematic in the food industry. The term "pathogenic" refers to any bacteria that are capable of causing illness when consumed by humans or animals.

Option A is correct

Pathogenic bacteria are often found in foods that are not cooked or handled correctly. This includes raw meat, unpasteurized dairy products, and foods that are stored at incorrect temperatures for an extended period of time. It is crucial for food industry professionals to follow strict safety protocols to minimize the risk of pathogenic bacteria contaminating their products, leading to foodborne illnesses.Foodborne illnesses can be caused by a variety of microorganisms, including bacteria, viruses, and parasites. Pathogenic bacteria are a significant concern in the food industry, as they can cause serious illness and even death in vulnerable populations such as young children, pregnant women, and the elderly. The most problematic bacteria in the food industry are those that are pathogenic and are capable of multiplying quickly in the food environment. Pathogenic bacteria can cause food poisoning, which is a severe illness that can result in dehydration, fever, vomiting, and diarrhea.

The symptoms can be severe and can lead to hospitalization or even death if left untreated. The most common pathogenic bacteria found in food are Salmonella, Listeria, and E.coli. These bacteria are often found in raw or undercooked meat, unpasteurized dairy products, and fruits and vegetables that are not washed correctly. It is essential for food industry professionals to follow strict safety protocols to prevent the growth and spread of these bacteria. Proper handwashing, storage, and cooking techniques can help minimize the risk of foodborne illnesses caused by pathogenic bacteria. In conclusion, pathogenic bacteria are the most problematic in the food industry. Food safety protocols should be followed to minimize the risk of foodborne illnesses caused by these bacteria.

To know more about Pathogenic bacteria visit:-

https://brainly.com/question/9673295

#SPJ11

Answer:

The correct option is;

D Global warming would decrease the surface tension of water, making it harder for water striders to walk on water

Explanation:

Global warming involves the heating of the ecosystems on Earth due to human activity, which results in rising temperatures

As the temperature of the water rises due to global warming the surface tension decreases due to the increasing ratio of the force of higher kinetic energy water molecule to inter-molecular cohesive forces pulling the water together, which tends to weaken the effect of the cohesive forces and thus reduce the surface tension

As the surface tension has been reduced, the water striders will find it difficult to walk on the water surface as the maximum weight the water surface can lift without shearing, due to surface tension is reduced.

Answer:

well tbh it's just the microwave doing its job heating up your Mac n cheese. But while doing so the Mac n cheese absorbs a lot of heat and then releases it by popping.

Answer:

I don't know

Explanation:

so true though

Answer:

I actually have no idea

Explanation:

Sorry my man

Answer:

Explanation:

generator

Answer:

No results found for 0.265g of an organic compound produced on evaporation 102cm cube of vapour at 373K and 775mmHg. Percentage composition of the constituent elements are 92.24% C and 7.76% H. Find the molecular mass and molecular formula of the composition..

Results for 0.265g of an organic compound produced on evaporation 102cm cube of vapour at 373K and 775mmHg Percentage composition of the constituent elements are 92.24 C and 7.76 H Find the molecular mass and molecular formula of the composition

Answer:

Using PV=nRT

P=775mmhg/760mmhg

P=1.01atm

so,n=PV/RT

n= (1.01*0.102)/(0.0821*373)

n= 0.00339mole

n =mass/ molecular mass

molecular mass =0.265/0.00339

molecular mass= 78.17

empirical formular = C. H

C= 92.24. 92.24/12= 7.688

H= 7.76. 7.76/1=7.76

therefore Empirical formula is CH

(CH)n=78.16

(12+1)n=78.14

n=78.14/13

n= 6.01

therefore, molecular formula is

C6H6