What is the electron configuration for an electrically neutral atom of oxygen?

Use the periodic table.

Responses

1s22s2

1 s 2 2 s 2

1s22s22p4
1 s squared 2 s squared 2 p to the power of 4

1s22s22p44d2
1 s squared 2 s squared 2 p to the power of 4 4 d squared

1s22s22p6

Explanation:

C

as the girl applies a resultant force on the volleyball causing it to accelerate, there's an unbalanced force acting on the ball.

The given reaction is an example of nuclear fusion.

This is because two lighter hydrogen atoms fuse to give a heavier helium atom. There is also an increase in the atomic number of the product.

Nuclear fission reactions are reactions in which the nucleus of large atoms are split into nucleus of two or more smaller atoms.

For example, uranium atoms split into krypton and barium.

Nuclear fusion reactions involve the nucleus of two or more smaller atoms combining to give an atom of a larger nucleus.

For example, hydrogen atoms fuse to give a helium atom.

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The electrons that are being lost gained or shared by each atom are Shared electrons.

Atoms and chemical species lose and gain electrons as they react to gain stability. Therefore, metals usually donate electrons to nonmetals to form cations. The number of electrons depends on their position on the periodic table. When an atom gains an electron, its overall charge becomes negative.

When an atom loses an electron its overall charge becomes positive. When an atom gains or loses electrons, its mass does not change. The number of electrons an atom can lose and gain share during a chemical reaction is called its valence. An atom that loses an electron gains a positive charge because it has fewer negatively charged electrons to balance the positive charge of the protons in the nucleus.

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Since energy can neither be created nor destroyed, it follows that the wavelength that was absorbed by the electron is also emitted.

We know that the Bohr model posses the idea that an electron could move from a lower to higher energy level by the absorption of a photon of light. Thus we know that, when we supply energy to the electron, it is that energy that leads to the electronic transition.

It is clear that the energy that the electron has taken in when it moves up is the same as the energy that it would give out when it comes down in accordance with the law of conservation of energy.

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The metals known as Alkaline Earth metals are Na, Mg, or Ca. They are known as "alkaline" earth metals because when they interact with water, they produce "alkaline" hydroxides solutions.

Any of the six chemical elements that make up Group 2 (II a) of the periodic table is an alkaline-earth metal. Beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium are the constituent elements (Ra).

The alkaline earth oxides, formerly known as beryllia, magnesia, lime, strontium, and baryta, are what give the alkaline earth metals their name. These oxides turn basic when combined with water (alkaline).

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Answer: gain 3

Explanation:

elements want to have a total of 8 valence electrons to become stable like the noble gases! Hope this Helps.

12500 joule heat is released when an acetylene (C2H2) torch burns 250 grams of fuel

q=ΔnH

H  acetylene = -1300 kJ/mo

n=given mass/molar mass

given mass= 250 g

molar mass=26

n= 250/26

n=9.61

q=ΔnH

q=9.61× -1300 kJ/mo

q=-12500 joule

In thermodynamics, heat has a very specific definition that is different from how we generally use the word. When two systems with various surface temperatures come into touch with one another, heat is the thermal energy that is transferred. The letters q or Q stand for heat, which is measured in joules.

Heat is sometimes referred to as a process quantity since it is defined in the context of a process through which energy can be conveyed. We may talk about the heat that a hot cup of coffee imparts to your hand, but we don't talk about the heat that a cup of coffee itself holds. Heat is yet another noteworthy quality.

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Based on the mole ratio of the reaction, the mass of aluminum oxide that is produced from the reaction between 5 g of aluminum and 9g of oxygen is 9.39 g.

The mass of aluminum oxide that can be formed from the reaction between aluminum and oxygen is determined from the limiting reactant and the mole ratio of the reaction.

The mole ratio of the reaction is as given in the equation of the reaction below:

2 Al (s) + 3 O₂ (g) ----> Al₂O₃ (s)

The mole ratio of Al to O = 2 : 3

Moles of Al present = 5/27

Moles of Al present = 0.185 moles

Moles of O present = 9/32

Moles of Al present = 0.281 moles

Al is the limiting reactant

Mole ratio of Al to Al₂O₃ = 2 : 1

Mass of Al₂O₃ produced = 0.185/2 * 101.56

Mass of Al₂O₃ produced = 9.39 g

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The balanced net ionic equation for the reaction between potassium sulfide and lead(II) nitrate is Pb²⁺(aq) + S²⁻(aq) → PbS(s)

From the question, we are to write the balanced net ionic equation for the given chemical reaction.

The given chemical reaction is

K₂S(aq) + Pb(NO₃)₂(aq) →

The between potassium sulfide and lead(II) nitrate will produce potassium nitrate and lead sulfide.

That is,

K₂S(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbS(s)

Now, balance the equation

K₂S(aq) + Pb(NO₃)₂(aq) → 2KNO₃(aq) + PbS(s)

Write the complete ionic equation

2K⁺(aq) + S²⁻(aq) + Pb²⁺(aq) + 2NO₃⁻(aq)  → 2K⁺(aq) + 2NO₃⁻(aq) + PbS(s)

Cancel out the spectator ions

S²⁻(aq) + Pb²⁺(aq)   → + PbS(s)

Hence, the balanced net ionic equation is

Pb²⁺(aq) + S²⁻(aq) → PbS(s)

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Answer: The answer would be C i think

Explanation:

The reaction the reversible reaction is given as :

6CO₂    +    6H₂O   + Heat    ⇄     C₆H₁₂O₆    +    6O₂

The photosynthesis is to convert carbon dioxide and water and light in into glucose and oxygen.

photosynthesis :

6CO₂    +    6H₂O   + Heat    ------>     C₆H₁₂O₆    +    6O₂

In cellular respiration organism release energy stored in the chemical bond of glucose.

C₆H₁₂O₆    +    6O₂   ----->  6CO₂    +    6H₂O   + Heat    

The reversible reaction can be as follows :

6CO₂    +    6H₂O   + Heat    ⇄     C₆H₁₂O₆    +    6O₂

                       reactants                      products

C                             6                                6

H                             12                                12

O                             18                                 18

The number of atoms present in reactant side is equal to the number of atom in product side. the equation is balanced.

6 moles of carbon dioxide produce 1 mole of oxygen

6 mole of water produce 1 mole of carbon dioxide

Thus, the reversible reaction given as:

6CO₂    +    6H₂O   + Heat    ⇄     C₆H₁₂O₆    +    6O₂

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Answer:

this is your answer 1234

Each Hydrogen atom has 1 valence electron. Since Hydrogen can only fit a max of 2 valence electrons in its orbital, each Hydrogen atom only needs 1 electron. Each atom has 1 valence electron, so they can just share, giving each atom two electrons each.

The balanced chemical equation is [tex]\rm 2SO_2 + O_2 \rightarrow 2SO_3[/tex].

Balanced chemical equation is defined as a formula where both the reactants and the products have the same amount of atoms of each kind. The law of conservation of mass stipulates that mass cannot be generated or destroyed, hence a chemical equation must always be in balance.

The balanced chemical equation are

[tex]\rm 4NH_3 + 3O_2 \rightarrow 2N_2 + 6H_2O[/tex]

[tex]\rm C_4H_1_0+ 5O_2 \rightarrow 4CO_2 + 5H_2O[/tex]

[tex]\rm 2Pb(NO_3)_2 \rightarrow 2PbO + 4NO_2 + O_2[/tex]

[tex]\rm 8Al + 3Fe_3O_4 \rightarrow 4Al_2O_3 + 9Fe[/tex]

[tex]\rm Sr + 2H_2O \rightarrow Sr(OH)_2 + H_2[/tex]

Thus,  balancing the chemical equation is very important as per the law.

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Answer:

option d rain evoporates

Answer:

D. Rain Evaporates

Explanation:

Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds. Clouds move over the globe and drop rain and snow.

87420 g  CO and 12580 g H2 mass would be needed to produce 100.0 kg of methanol in CO + H2 = CH3OH.

The atomic mass of an element refers to the mass of the constituents that make up its atom. A multiple of 1.992646547 1023 gram, or more specifically, 1.992646547 gram, is used to denote one-twelfth of the mass of the carbon-12 atom, which has an ascribed atomic mass of 12 units. On this scale, one atomic mass unit is equal to 1.660539040 1024 grammes (amu). In honour of English physicist John Dalton, the atomic mass unit is occasionally called the dalton (Da).

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Answer:

search on YT Khan academy work done by gravity

Explanation:

you will get it for sure with best explanation

mark me please on brainlest

Answer:

Heterotrophs

Explanation:

Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are examples of heterotrophs. Heterotrophs occupy the second and third levels of the food chain, the chains of organisms that provide energy and nutrients to other organisms.

Answer:

13.89

Explanation:

13.89 moles (mole =mass)

Volume the fluorine gas occupies = 0.73L

What is volume of a gas ?

The gas's volume:

The area occupied by gaseous particles under normal temperature and pressure circumstances is referred to as the volume of gas.

It is identified as a "V."

The letter "L" stands for "liters," the SI unit of volume.

At normal temperature, a mole of gas has a volume of 24 m3, or 24 000 cm3.

The molar volume of a gas is the name given to this quantity.

The gas equation

PV = n R T

P = pressure = 2.04 atm

T = temperature = 5.20 Celsius = 278.20K

V = volume

n = no of moles = 1.24/19 = 0.065moles

R = gas constant = 0.0821lit atm /K

V = 0.065*0.082*278.20/ 2.04 =  0.73L

Volume the fluorine gas occupies = 0.73L

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The empirical formula of compound is C₃H₇O₃. The molecular formula is 1, 2, 3, tri hydroxyl propane.

What is molecular formula ?

The molecular formula is an equation that specifies how many atoms of each element there are in a single compound's molecule. It displays the precise amount of atoms present in a molecule.

Propane, for instance, has the chemical formula C4H10. The given compound has a formula of 4 carbon atoms and 10 hydrogen atoms.

The empirical  formula of compound is C₃H₇O₃.

Then, ( 12 × 3 ) + ( 1 × 7 ) + ( 16 × 3 )

= 36 + 7 + 48

= 91

( 39.6 ) + ( 7.75 ) = 47.35

91 - 47.35

= 43.65

Thus, molecular formula of given compound is 1, 2, 3, tri hydroxyl propane.

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The unique property of the orbitals around the nucleus of an atom is that each orbital has electrons of a specific energy level; option B.

Orbitals in an atom are regions of space around which electrons are found in an atom.

The orbitals in an atom are also described as energy levels.

Electrons are arranged in atomic orbitals from orbitals having the lowest energy to orbitals having the greatest energy.

The outermost orbital of an atom is known as the valence orbital and electrons found there are known as valence electrons.

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On average, the total mass of ions in 4.75 liters of Mackenzie River water is 0.466 g grams.

The formula mass of an ionic compound is determined in the same manner as the formula mass of a covalent compound is determined: by adding the average atomic masses of all the atoms in the compound's formula.

Hence, the total mass is computed as follows:

(0.820 mM Ca 2⁺) X ( 2.25 L) = 1.845 mmoles at 40.0 g/mol = 73.8 mg

(0.430 mM Mg 2⁺) X ( 2.25 L) = 0.9675 mmoles at 24.3 g/mol = 23.51 mg

(0.300 mM Na⁺) X ( 2.25 L) = 0.675 mmol at 23.0 g/mol = 15.52 mg

(0.0200 mM K⁺) X ( 2.25 L) = 0.045 mmol at 39.1 = 1.75 mg

(0.250 mM Cl-) X ( 2.25 L) = 0.5625 mmol at 35.45 g/mol = 19.94 mg

(0.380 mM SO₄²-) X ( 2.25 L) = 0.855 mmol at 96.06 g/mol = 82.13 mg

(1.82 mM HCO₃ -) X ( 2.25 L) = 4.095 mmol at 61.02 g/mol = 249.87 mg

Thus, total mass = 73.8 + 23.51 + 15.52  + 1.75 + 19.94 + 82.13 + 249.87

= 466.52mg

Converted into grams  we have:
466.52/1000

= 0.46652

Hence, on average, the total mass of these ions 4.75 L [tex]\approx[/tex] 0.47 grams.

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Methane (CH4) is a hydrocarbon that is mostly found in natural gas and has a molecular weight of 4.051747moles per 65.0 grams.

Methane concentrations above a certain threshold can affect how much oxygen is breathed in. This can include headaches, face flushing, memory loss, vision issues, slurred speech, mood swings, nausea, and vomiting. Serious cases could result in altered breathing and heart rate, balance issues, numbness, and coma.

The gas methane (CH4) is colorless, odorless, and very combustible. Carbon and hydrogen are its main ingredients. According to us Environmental Protection Agency, it is also a powerful greenhouse gas, meaning means it influences climate change by causing more warming.

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Answer:20 mi/s

Explanation:

Answer:

0.3269

Explanation:

You would use the ideal gas law along with the equation Pv=nrt when P is pressure, v is volume, n is the moles of gas you are solving for, r is a constant that is , and t is temperature,

So you are given pressure, volume, and temperature, so you would begin by plugging in your known values:

P = 1atm

V = 8.00 L

T = 298 K ( but you usually want to use Kelvin so you would add 273.15; this is because 0 C is 273.15 K and 25+273=298)

(1)(8)=n(0.0821)(298)

then

8=n(24.4658)

next isolate n by dividing 24.4658 on each side

8/24.4658 = n (24.4658/24.4658)

0.3269=n(1) or n

The concentration of species in the reaction changes the reaction in the following ways: decrease carbon dioxide = forward direction of reaction.

The direction of the reaction can be assessed by the following.  On increasing the concentration of the reactant the reaction processes in the forward direction. On increasing the concentration of product the reaction processes in the backward direction.  

The given equilibrium is:

2CO(g) + O2(g) ↔ 2CO2(g)

increase CO = forward direction of reaction  

increase oxygen = forward direction of reaction

decrease CO = no change in equilibrium as reaction not processes.  

decrease oxygen = no change in equilibrium as reaction not processes.  

increase carbon dioxide= reverse direction  

decrease carbon dioxide = forward direction of reaction.

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