describe one reason why models of atoms we usually see in textbooks or diagrams are not perfectly accurate representation of real life atoms

Answer:

the answer should 126 859.2 m2

Answer:

See Explanation

Explanation:

2Al⁰(s) + 3CuSO₄(aq) => Al₂(SO₄)₃(aq) + 3 Cu(s)

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                1 mole = 1 N₀ = 6.023 x 10²³ particles = 1 formula weight

        Vol H₂(g) = 3 moles x 22.4 L/mole = 67.2 Liters H₂(g)

        Vol N₂(g) = 1 moles x 22.4 L/mole = 22.4 Liters N₂(g)  

        Vol NH₃(g) = 2 moles x 22.4 L/mole = 44.8 Liters NH₃(g)

         moles => coefficient values

         equation masses => coefficient x formula wt. (grams)

          particle numbers => coefficient x Avogadro's No. (=6.023 x 10²³)

          gas volumes => coefficient x 22.4 Liters

          molar energy values => Equation heat of rxn/coefficient

Yeah, I get carried away at times. Hope this will be useful. :-)

Answer: A cooperative is a private business organization that is owned and controlled by the people who use its products, supplies or services. Although cooperatives vary in type and membership size, all were formed to meet the specific objectives of members, and are structured to adapt to member's changing needs. hope this helps. Can u give me brainliest

Explanation:

Answer:

Try to find someone who is interested in you as well as you are with him. But be chill about it and never ever let yourself think your not perfect enough cause you are thee most phenomenal person in the entire planet and there is no one like you, you are special. P.S. there are alot of cute guys out there you just gotta wait until he finds you or you find him.

Explanation:

Answer:

huh

Explanation:

Answer:

Explanation:

living

divide

Answer:

no idea....... .............

Answer:

It's going to be a postive charge because although theres a lot more neutrons then the rest of them, neutrons are neutral, which won't have much of an effect to the charge of the atom. 4 protons has a larger proportion to the rest.

Explanation:

proton number and neutron number sums up to form the mass number

Answer:

Neutrons & protons

Explanation:

hope it's help..

Answer:

0.25 moles of COCl₂ are been produced

The element that is oxidized is C, it changed the oxidation state from +2 in CO to +4 in phosgene.

Explanation:

Equilibrium reaction:

Cl₂(g)  +  CO(g)  ⇄  COCl₂(g)

Let's convert the mass of CO to moles:

7g . 1mol /28g = 0.25 moles

As ratio is 1:1, we can say that 0.25 moles of COCl₂ are been produced.

1 mol of chlorine reacts to 1 mol of carbon monoxide in order to produce 1 mol of phosgene.

Chlorine is been reduced:

Cl₂  +  2e⁻  ⇄  2Cl⁻

Change the oxidation state, from 0 (ground state) to -1. Oxidation state decreased.

Carbon is been oxidized.

In CO, carbon has +2 as oxidation state. In phosgene the oxidation state is +4. This oxidation state was increased, that's why it has oxidized.

The element that is oxidized is carbon whose oxidation number was increased from +2 to +4.

The equation of the reaction is;

Cl2(g) + CO(g) ⇄ COCl2(g)

We have been told that the chlorine gas is the reactant in excess hence the carbon monoxide is the limiting reactant.

Number of moles of  CO = 7.0 g/28 g/mol = 0.25 moles

Since the reaction is 1:1, 0.25 moles of COCl2 is produced.

The element that is oxidized is carbon whose oxidation number was increased from +2 to +4.

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Explanation:

thinking it Charles

V1=1.03or 1L

strongest bond is the triple bond

The weakest is the single bond

Explanation:

Answer:

Ruler

Explanation:

Answer:

1. Water has a high boiling point considering its low molecular weight.  

This is because the O-H bonds are very polar and the H's are located at two corners of a tetrahedron giving water a high molecular polarity so that they tend to stick together.  

2. Water forms hydrogen bonds between molecules  

these bonds are rather flexible so that in liquid phase the molecules are relatively close together  

but as the hexagonal arrangement of ice is formed the bonds are licked in place and as a result the average distance between molecules actually increases  

with the result that ice is less dense than liquid water

Explanation:

Answer:i pretty sure it is  high to low   kinetic

Explanation: because heat or energy travels from hot heat to low heat which heat is the same as kinetic

Answer:

853.15 L

I hope This is Right!

Apologies if it's not :(

Answer:

I know the answer

Explanation:

attraction helps its capacity

hope it may helps you

Answer:

The suns position would change from human perspective because of the rotation of the earth around its axis. So your shadow would look differently. Explanation: The sun will move where it is at because the earth moves around the sun.

Explanation:

The size of the shadow changes as the sun changes its position.

The position of sun in the sky would change the direction of our shadow if we were to stand in the same place all day because the sun moves with the passage of time. The sun rises in the east so at that time our shadow is formed towards the west side and start decreasing when the sun reaches high in the sky.

When the sun reaches at the top of our head, then no shadow is formed and when the sun set occurs the length of the shadow again decreases so we can say that the size of the shadow changes as the sun changes its position.

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Explanation:

Chemical Bonding refers to the formation of a chemical bond between two or more atoms, molecules, or ions to give rise to a chemical compound.

The subatomic particles that participate are electrons.

Answer: D

Explanation: Metals are solid at room temp and also are shiny and can be flattened or broken into pieces when hammered and some metals are high and low conductors of electricity.

Metals have a characteristic property of conduction and malleability  and thus  sample 1 is metallic.

Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.

In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .

When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:

1) heat conduction

2) electrical conduction

3)sound conduction

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Answer:

C

Explanation:

others are boring or gems

Answer:

c

Explanation:

i took the test

Answer:

Could you provide a diagram?

Explanation:

Answer:

.48 moles

Explanation

n=PV/RT

Answer:Place the water under brighter .

Explanation:

Answer:

d

Explanation

all are compounds

Yes, as all of these compounds are covalent since they are not conductive. Therefore, the correct option is option D.

A chemical compound is a material made of several similar molecules (as well as molecular entities) joined by chemical bonds and comprising atoms from various chemical elements.

Chemical reactions, which may entail interactions with other molecules, can change a compound into a distinct substance. Atomic bonds may be shattered or new ones created during this process. Yes, as all of these compounds are covalent since they are not conductive.

Therefore, the correct option is option D.

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Answer:

chromosomes is responsible

The reproduction is defined as a process which involves the production of offspring. The genetic instructions are stored in chromosome. The correct option is C.

A chromosome is defined as the DNA molecule which consists of all the genetic material of an organism. It is found to be present in the nucleus of each cell. The DNA inside the chromosome is tightly coiled around special proteins called histones.

All living organisms are composed of chromosomes. Humans have 23 pairs of chromosomes. 22 pairs of these chromosomes are called autosomes. These are same in both males and females. The 23rd pair of chromosomes are called allosomes and they differ between sexes.

The males have one 'X' and 'Y' chromosome, while females have two copies of the 'X' chromosome. The important function of genetic material is to store information needed by the cell to make proteins.

Thus the correct option is C.

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Answer:

The two masses have the same numerical value, but the units are different

Explanation:

The two masses have the same numerical value, but the units are different: The molecular mass is the mass of 1 molecule while the molar mass is the mass of 6.022 \(×\) 1023 molecules.

Answer:

- 143.6 g of N₂ ; 3.08×10²⁴ molecules of N₂

- 451.4 g of CO₂ ; 6.17×10²⁴ molecules of CO₂

- 153.9 g of H₂O ; 5.14×10²⁴ molecules of H₂O

- 27.3 g of O₂ ; 5.14×10²³ molecules of O₂

Explanation:

This is a reaction of decomposition:

4C₃H₅N₃O₉(s)  →  6N₂(g)  +  12CO₂(g)  +  10H₂O(g)  +  O₂(g)

4 moles of solid nitroglycerine decompose to 6 moles of nitrogen, 12 moles of carbon dioxide, 10 moles of water vapor and 1 mol of oxygen

We convert mass to moles → 777 g. 1mol/ 227g = 3.42 moles

4 moles of C₃H₅N₃O₉ can decompose to:

6 moles of N₂ ____  12 moles of CO₂ ___ 10 moles of H₂O ___ 1 mol of O₂

Then, 3.42 moles of C₃H₅N₃O₉ may decompose to:

(3.42 . 6) / 4  =  5.13 moles of N₂

(3.42 . 12) / 4 = 10.26 moles of CO₂

(3.42 . 10) / 4 = 8.55 moles of water vapor

(3.42 . 1) / 4 = 0.855 moles of oxygen

We convert the moles to mass:

5.13 mol . 28 g/mol = 143.6 g of N₂

10.26 mol . 44 g/mol = 451.4 g of CO₂

8.55 mol . 18 g/mol = 153.9 g of H₂O

0.855 mol . 28 g/mol = 27.3 g of O₂

We count the atoms:

5.13 mol . 6.02×10²³ molecules /mol = 3.08×10²⁴ molecules of N₂

10.26 mol . 6.02×10²³ molecules /mol = 6.17×10²⁴ molecules of CO₂

8.55 mol . 6.02×10²³ molecules /mol = 5.14×10²⁴ molecules of H₂O

0.855 mol . 6.02×10²³ molecules /mol = 5.14×10²³ molecules of O₂

Answer:

Electromagnetism is the study of the electromagnetic force, one of the four fundamental forces of nature. It includes the electric force, which pushes all charged particles, and the magnetic force, which only pushes moving charges.It is used in many electrical appliances to generate desired magnetic fields. It is even used in a electric generator to produce magnetic fields for electromagnetic induction to occur.

Explanation:

tell me if this helped, ill try and explain better