List the number of sigma bonds and pi bonds in a triple bond.
2 sigma, 2 pi
1 sigma, 1 pi
2 sigma, 1 pi
1 sigma, 2 pi

Answer: Ionic attractions

Explanation:

Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

Answer: \(1.07\times 10^{23}\) molecules

Explanation:

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = 1 atm ( at STP)

V= Volume of the gas  = 4.00 L

T= Temperature of the gas in kelvin = 273 K ( at STP)

R= Gas constant = 0.0821Latm/kmol

n=  moles of gas= ?

Putting in the values we get:

\(1atm\times 4.00L=n\times 0.0821Latm/Kmol\times 273K\)

\(n=0.178mol\)

Now 1 mole of any substance contains \(6.023\times 10^{23}\) molecules at STP

Thus 0.178 mole of any substance contains = \(\frac{6.023\times 10^{23}}{1}\times 0.178=1.07\times 10^{23}\) molecules at STP

Thus there are \(1.07\times 10^{23}\) gaseous molecules in the flask.

To create this solution, 0.450 moles of sodium hydroxide are required.

The mole is the amount of stuff in a system that has as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is "mol". A mole is the mass of a material containing 6.023 x 1023 particles of that substance. The mole is the SI unit of material quantity. It is represented by the symbol mol. 1 mol of carbon-12 has a mass of 12 grams and a carbon atom count of 6.022140857 x 1023. (to 10 significant figures).

Here,

To find the amount of sodium hydroxide needed to make a 1.8 M solution of 250 ml, we need to multiply the molarity (1.8 M) by the volume (250 ml) and convert the volume to liters.

1.8 M * 0.250 L = 0.450 mol

So, 0.450 moles of sodium hydroxide are needed to make this solution.

To know more about moles,

https://brainly.com/question/30373566

#SPJ1

Answer:

b. Neutrons

Explanation:

Isotopes of the same element have different number of neutrons. The number of neutrons is the determinant of an isotope.

Isotopes of an element have the same electronic configuration hence they have the same chemical properties.

Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their various nuclei.

The number of neutrons makes the difference in isotopes.

Answer:

1.07x10^24

Explanation:

thats the answer

Therefore, the number of mole will be 1.065 × \(10^{24}\).

What is mole?

A mole is the quantity of a substance containing 6.023 x \(10^{23}\) particles of that substance. The mole is really the SI unit for a substance's quantity.

It is given that, mass of 230 gram of CoCl2.

Moles = mass / molar mass

Put the value of given data in mole formula.

Moles = 230 / 129.8

Moles = 1.77

It is known that, 1 mole = 6.02 × \(10^{23}\) molecule.

Hence, 177 moles =  6.02 × \(10^{23}\) × 1.77 = 10.65 ×  \(10^{23}\) .

Therefore, the number of mole will be 1.065 × \(10^{24}\).

To know more about mole.

https://brainly.com/question/19922822

#SPJ2

The orbital notation for nitrogen showed that in the valence shell there are 3 paired electrons and 1 unpaired.

The electronic configuration of nitrogen is:

1s²2s²2p⁶.

Nitrogen has five valence electrons with 2 electrons in the 2s orbital and 3 electrons in the 2p orbital.

The 2p orbital has three orbitals, which can accommodate six electrons.

The electronic configuration of nitrogen can be represented as:

1s²2s²2p³Nitrogen has a valence shell of 5 electrons, with 3 of those electrons in the 2p orbitals.

There are three unpaired electrons in the 2p orbitals.

The valence shell electronic configuration of nitrogen can be shown using orbital notation as shown below:

Orbital notation is a symbolic representation of the configuration of electrons in the orbitals of an atom or molecule.

It represents the electron configuration of an atom by showing the energy level and sublevel for each electron in an atom.

It uses arrows to represent electrons and boxes to represent orbitals.

Learn more about  orbital notation from this link:

https://brainly.com/question/18850776

#SPJ11

The green salt is less soluble in hot water than in cold water. During the experiment, this information can be utilized to adjust the temperature of the water to control the solubility of the salt.

The quantity of a substance that can dissolve in a particular solvent is known as solubility. Solubility is dependent on the properties of the solvent, the solute, and the solution. Temperature, pressure, and, in the case of ionically conducting solvents, electric fields also play a role.

Solubility is expressed as the maximum amount of solute that may be dissolved in a particular quantity of solvent at a specific temperature to create a saturated solution. Solubility of green salt, Green salt, also known as copper(II) acetate, is a substance with a solubility of 1.6 g/100 mL in cold water and 1.8 g/100 mL in hot water.

This means that green salt is more soluble in hot water than in cold water, according to the values given in the question. During the experiment, this information on the solubility of green salt in hot and cold water could be utilized to control the solubility of the salt.

Adjusting the temperature of the water to make it colder would increase the solubility of green salt in it, while adjusting the temperature of the water to make it hotter would decrease the solubility of green salt in it.

To know more about solubility, refer here:

https://brainly.com/question/31043941#

#SPJ11

Answer:

Neon is a gas and silicon is a solid i solved this for my chemistry teacher dr Thomas project this week

Explanation:

gasses are naturally less stable then non metalloids

If an athlete has X joules of mechanical energy at the top of the hill, he will have the same X amount of energy at the bottom of the hill.

Mechanical energy is the addition of kinetic and potential energy. It can be either kinetic or potential energy.

It is the energy possessed by the position or the motion of the body.

It is the energy present to perform any work.

So, the athlete will have X joule of energy at the top and bottom of the hill.

Thus, the correct option is a, X joules.

Learn more about mechanical energy

https://brainly.com/question/20030300

Answer:

X Joules

Explanation:

Explanation:

Andrews, 4/15/2019 – Cells and Structure of Life Lab Report. Objective(s): In your own words, what was the purpose of the lab? The purpose of this lab was to explain, show, and gather evidence of the cell theory. Procedure: 1.

2021:  Cells and Structure of Life Lab Report. Objective(s): In your own words, what was the purpose of the lab? The purpose of this lab was to explain, show, and gather evidence of the cell theory. Procedure: 1.

In the event that the SIM (Sulfide Indole Motility) medium is utilized entirely for testing motility and indole generation, the ingredients that can be killed are those particularly related to the discovery of hydrogen sulfide (H2S) generation. These ingredients incorporate ferrous sulfate or ferrous ammonium sulfate, which are utilized to identify the arrangement of dark precipitates showing the presence of H2S.

In the event that the testing is exclusively for motility and sulfur reduction, the ingredients that can be killed are those related to the discovery of indole generation. Indole isn't directly included in sulfur reduction, so the following fixing can be removed:

Bacteria have the enzymes vital to utilize citrate as a source of vitality and carbon, but not all microbes can develop on citrate media. The failure of a few microbes to develop on citrate media can be clarified by the taking after reasons:

It's vital to note that the capacity to develop on citrate media is regularly evaluated utilizing the Simmons citrate agar test, which contains sodium citrate as the sole source of carbon.

Learn more about SIM media

https://brainly.com/question/30891685

#SPJ4

Answer:

Hello Adam Here!!!

Explanation:

A chemical compound has the following characteristics: (i) A chemical compound is obtained by the chemical combination of two or more elements in a definite proportion by mass. (ii) Compounds are homogeneous, i.e. their properties are the same throughout.

Happy to Help! =)

Answer:

360g where 1mole of O2 reacts with 2miles of H2 to form 1mole of water

Explanation:

2H2+O2=2H2O

P1 = 756 torr

P2 = 499 torr

V2 = 789 mL

V1 = ?

applying Boyle's Law

P1 * V1 = P2 * V2

756 torr * V1 = 499 torr * 789 mL

V1 = 499 torr * 789 mL / 756 torr

V1 = 520.78 mL

397.2 kcal.  is the bond dissociation energy for the breaking of all the bonds in a mole of methane, CH4.

One carbon atom makes up the molecule methane(CH4), which has four hydrogen atoms bound to the carbon by single bonds. It is a odorless, colorless, non-toxic, flammable gas and has a melting point of -161°C. CH4 performs three functions: fossil fuel, greenhouse gas, and bacterial metabolite.

For calculating the  bond dissociation energy for the breaking of all the bonds in a mole of methane, CH4.

do as follows.

heat of atomization of solid carbon =170.9kcal

and heat of atomization of four gaseous hydrogen is =4 × 52.1kcal

So, energy for breaking four carbon-hydrogen bonds

= 170.9 + (4 × 52.1) + 17.9 = 397.2 kcal.

Hence, 397.2 kcal.  is the bond dissociation energy for the breaking of all the bonds in a mole of methane, CH4

To know more about CH4 visit

https://brainly.com/question/27926556

#SPJ4

Answer:

D

Explanation:

molecules have potential energy and kinetic energy.

Tempreture is defined as the average kinetic energy and internal energy is PE+KE. Pptential energy in particles or molecules is just there position relative to one another. A gas which has seperated particles will have a greater potential energy than a solid/liquid.

Answer:

because it is a sign that there are more producers for the consumers.

Explanation:

An ecosystem consist of the abiotic or inorganic components, the animals[consumers], the plants[producers] and the decomposers. An ecosystem simply means the environment of organisms that are living together and the way these organisms interact with another.

The producers that is the plants are the ones manufacturing food by themselves either by photosynthesis or chemosynthesis and the consumers are the ones relying on the producers for food.

The ecosystem is still healthy even when there's still a lot of consumers in it because it shows that there are come producers that is to say the producers are more also. If this is not the case, then the ecosystem will not be healthy as the consumers will eat the producers until the producers will not be enough.

False , The most abundant cation in intracellular fluid is potassium (K+), not sodium (Na+). Potassium ions are found in higher concentrations inside cells, contributing to the positive charge within the intracellular environment.

Sodium ions, on the other hand, are more abundant in extracellular fluid. The concentration gradient of sodium and potassium across the cell membrane plays a crucial role in various cellular processes, including the generation of action potentials and the maintenance of cell volume and osmotic balance.

To know more about intracellular refer here

https://brainly.com/question/7219082#

#SPJ11

a) The sphere emits thermal radiation at a rate of 139.75 Watts.

b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.

c) The sphere's net rate of energy exchange is 102.09 Watts.

To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.

a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:

Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))

Plugging in the given values:

Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)

Emitting Rate ≈ 139.75 Watts

b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:

Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))

Plugging in the given values:

Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)

Absorbing Rate ≈ 37.66 Watts

c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:

Net Rate = Emitting Rate - Absorbing Rate

Net Rate = 139.75 Watts - 37.66 Watts

Net Rate ≈ 102.09 Watts

Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.

Note: The units for all the rates are Watts.

Learn more about thermal radiation emission

brainly.com/question/28517392

#SPJ11

Answer:

C. Glass

Explanation:

Amorphous solids have a non-crystalline structure and no order. In that case, Diamonds, Graphite, and Iron all have a crystalline structure and order. You are left with C as your answer.

Answer:

sodium appears as a silvery soft metal that becomes grayish white upon exposure to air

Explanation:

molecular weight 22.989769 g/mol

modify dates 2021 -01-23

create dates 2004-09-16

Cu(NO3)2 has a mass of 4.69 g in 25.0 g of a 1.00 M solution of Cu(NO3)2(aq). A physical term used to describe the amount of matter in a thing is "mass."

The formula: moles of solute = concentration x volume of solution can be used to determine the mass of Cu(NO3)2 contained in 25.0 g of a 1.00 M solution of Cu(NO3)2(aq). Finding the volume of the solution containing one mole of Cu(NO3)2 is the first step.

Per litre of solution, 1.00 M equals 1 mole of Cu(NO3)2.

Cu(NO3)2 weights 187.6 g per mole.

Cu(NO3)2 mole 1 = 187.6 g

Cu(NO3)2:0.1 mole = 18.76 g

to prepare a Cu 1.00 M solution (NO3)

2. 18.76 g of Cu(NO3)2 must be dissolved in 1.00 L of solution.

the mass of Cu(NO3)2 present based on the molar mass of Cu(NO3)2:

Cu(NO3)2 mass equals 4.69 g or 0.0250 mol x 187.6 g/mol.

Hence, the quantity of Cu(NO3)2 in Cu(NO3)2(aq) in a 1.00 M solution has a mass of 4.69 g per 25.0 g.

Learn more about the mass here:

https://brainly.com/question/28683060

#SPJ4

Answer:

2.857 g/mL

Explanation:

as we know density = mass/volume

The density of a substance is the mass divided by its volume. The density of the object with a mass of 20g on a volume of 7 ml.

Density of an object is the measure of its mass per unit volume. It describes how closely its particles are packed.  Hence, it is the ratio of mass to the volume of the object.

The density of the object depends on bond type, temperature and pressure also. The more denser the object is its particles are closely packed in a small volume.

Given that, mass = 20 g

volume = 7 ml

Density = mass/volume

             = 20 g/ 7 ml

             = 2.85 g/ml.

Therefore, the density of the object is 2.85 g/ml.

To find more on density, refer here:

https://brainly.com/question/29775886

#SPJ2

Answer:

I don't know please you tell me just joking

The force that the tri ceps muscle exerts on the fore arm when you lift a 17g  with your hand is 1323 N

Data;

The sum of moment of a force about a point is equal to zero.

∑m = 0

\(x*5 - 17 * 9.8*35 -5 * 9.8 * 16 = 0\\5x - 6615 = 0\\x = 1323N\)

The force that the triceps muscle exerts on the forearm when you lift a 17g with your hand. Assuming the is I = 0.35m from the elbow join and the  is d = 0.05m from the joint is 1323N

learn more on moment of a force here;

https://brainly.com/question/15270019

Answer: 2510

Explanation: Hope this Helps

Answer:

A. A random amount of light was released

Explanation:

A random amount of light was released. Hence, option A is correct.

An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom) or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. The charge on a single electron is considered the unit electrical charge.

Electrons are sub-atomic particles that occupy energy levels in an atom of any chemical element. These electrons may move from one energy level to another.

Electrons may move from a lower energy level or ground state to an excited state or high energy level, or else move from a higher energy level to a lower energy level.

When an electron moves from a lower energy level to a higher energy level energy is absorbed by the atom, and when the movement is from a higher energy level to lower energy is released mainly as light.

Hence, option A is correct.

Learn more about electrons here:

https://brainly.com/question/2293721

#SPJ5

Answer: no

Explanation: they tell the organs what to sense.  

Answer:

1.20 mole

Explanation:

1 Mole of Cu reacts to form  =  1 Mole of Hg

(1.20 mol × 1 mol) ÷ 1 mol

1.20 mol of Hg