Which atom is a carbon atom?

A
B
C

Answer:

2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + 2 H2O (l)

Explanation:

Redox reaction: In this type of reaction, oxidation and reduction reaction occurs simultaneously in same chemical reaction.

2C_2H_2+5O_2\rightarrow 4CO_2 + 2H_2O2C

2

H

2

+5O

2

→4CO

2

+2H

2

O

This reaction is a redox reaction :

Removal of hydrogen or addition of oxygen is termed as oxidation. in above reaction, removal hydrogen from acetylene gives carbon-dioxide.

Removal of oxygen or addition of hydrogen is termed as reduction. in above reaction, removal of one oxygen atom from oxygen molecule with addition of two hydrogen atoms gives water

The oxidation number of carbon in acetylene is -2.

The oxidation number of carbon in carbon-dioxide= +4

Oxidation number of carbon increases after the reaction which means that carbon is getting oxidized.

The oxidation number of oxygen in oxygen gas = 0

The oxidation number of oxygen in water = -2

Oxidation number of oxygen decreases after the reaction which means that oxygen is getting reduced.

The electrons released during oxidation are transferred to the species which are undergoing reduction reaction.

Answer:

Just put this, or something like it:

The oxidation number of carbon changes from -1 to +4.

The oxidation number of oxygen changes from 0 to -2.

Carbon is oxidized.

Oxygen is reduced.

Electrons are transferred from carbon to oxygen.

Explanation:

Answer:

320J/g

Explanation:

Given parameters:

Mass of the liquid  = 40g

Amount of heat added  = 12800J

Unknown:

The heat of vaporization = ?

Solution:

The heat of vaporization can be related to heat added by the expression below;

           H  = mL

H is the heat added

m is the mass

L is the heat of vaporization

 Insert the parameters and solve;

          12800 = 40 x L

            L = [tex]\frac{12800}{40}[/tex]   = 320J/g

Answer:

It would be a heterogeneous mixture.

Answer:

43.72

Explanation:

that is the answer hope u liked it and I did this already along time ago

The molarity of the solution will be "0.088 M".

Given values are:

Volume,

Molarity,

By using the Dilution principle, we get

→ [tex]M_2 = \frac{M_1 V_1}{V_2}[/tex]

By substituting the given values, we get

→       [tex]=\frac{1.005\times 43.72}{500}[/tex]

→       [tex]= \frac{ 43.9586}{500}[/tex]

→       [tex]= 0.088 \ M[/tex]

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Answer:

B. how fast the particles are moving

Explanation:

Temperature measures the average kinetic energy of system as result of the thermal - heat energy present in the reaction or a body.

Often times, temperature is the degree of hotness or coldness of a body and this translates to an increase or decrease in the molecular speed.

Answer:

The new element will be thorium-226 (²²⁶Th).

Explanation:

The beta decay is given by:

[tex] ^{A}_{Z}X \rightarrow ^{A}_{Z+1}Y + \beta^{-} + \bar{\nu_{e}} [/tex]

Where:

A: is the mass number

Z: is the number of protons  

β⁻: is a beta particle = electron

[tex]\bar{\nu_{e}}[/tex]: is an antineutrino

The neutral atom has 88 electrons, so:

[tex] e^{-} = 88 = Z [/tex]

Hence the element is radium (Ra), it has A = 226.

If Ra undergoes 2 rounds of beta minus decay, we have:

[tex] ^{226}_{88}Ra \rightarrow ^{226}_{89}Ac + \beta^{-} + \bar{\nu_{e}} [/tex]    

[tex] ^{226}_{89}Ac \rightarrow ^{226}_{90}Th + \beta^{-} + \bar{\nu_{e}} [/tex]

Therefore, if a neutral atom with 88 electrons undergoes 2 rounds of beta minus decay the new element will be thorium-226 (²²⁶Th).

I hope it helps you!    

Answer:

The answer is c

Explanation:c

Answer:

V = 10 m³

m = 70 grams

density = ....?

density = m/v

= 70/10

= 7 g/cm³ (B)

Answer:

No they do not have a lot of kinetic energy

Answer:

See explanation

Explanation:

Initially, when the paper is hung over the light bulb, we observe that nothing happens at all.

As time goes on, air surrounding the lamp begins to heat up. Remember that hot air is lighter and less dense than cold air.  Air surrounding the lamp which has now become hotter and less dense rises and pushes on the spiral. This causes the spiral to begin to spin.

Answer:

2 circles one proton and one nucleon.draw quarks within each. strong nuclear force within protons between quarks and residual strong force between proton and nucleon (up,up,down in proton)

Explanation:

Answer:

352kg.m/s

Explanation:

Momentum is the product of mass and velocity. Momentum is a vector quantity. Momentum is the measurement of an object in motion thereby showing how much of the object is in motion. The formula of momentum (p) is given as:

p = mass * velocity

Given that the runner has mass of 55 kg, the momentum at a speed of 6.4 m/s is:

Momentum = mass * velocity = 55 * 6.4 = 352kg.m/s

Answer:352

Explanation:

Answer: The products usually weigh more than the reactants.

Explanation:

Answer:

A

Explanation:

i just took the k12 test

Answer:

natural gas

Explanation:

your welcomeee

Answer:

Distillation

Explanation:

that's it

Answer:

See explanation

Explanation:

7. As we move down the group more shells are added. The addition of more shells means that the atom becomes larger and the outermost electron is now at greater distance from the nucleus and screening effect becomes very important. This greater screening effect of the inner electron reduces the magnitude of effective nuclear charge on the outermost electron thereby lowering the ionization energy.

8. As we move across the period, the effective nuclear charge increases without a corresponding increase in the number of shells. As a result of this, the outermost electron becomes more tightly bound to the nucleus as the atom becomes smaller and atomic radius decreases causing a rise in the ionization energy from left to right across a period.

9. Actually, the smaller an atom is the greater its electron affinity. The smaller the atom is, the more the outermost shell is drawn closer to the nucleus and this means that the atom is better able to attract electrons to itself.

It is due to the size of atom which varies its force of attraction.

As you move down a group, the atomic radius increases due to addition of more number of shells in an atom.  This increase in atomic radius would result in a lower  ionization energy because the valance electron is farther from the nucleus and held with weak attractive force so less energy is required to remove it.

While on the other hand, as we move from left to right in a periodic table the atomic radius decreases due to addition of more electrons which shrinks the atom and brought the valance shell closer to the nucleus so it becomes harder to remove an electron because the nucleus held these electrons very tightly.

The size of an atom will affect its ability to attract additional electrons because of its force of attraction. Atoms with small radius has more ability to attract electrons due to higher force of attraction as compared to higher atomic radius atoms.

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Answer:

0.0003 moles

Explanation:

MgC6H8O6 = (60.0mg/1)(1 mol mg/176000mg)

Answer:3,4,1,2

Explanation:

hope this helped

Answer: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^4

Explanation:

I suggest looking at the electron configuration chart, it has really helped me a lot :)

Answer:

[Ar] 3d10 4s2 4p4

Explanation:

Answer:

1 quartz

Explanation:

pls tell me if I'm wrong

Quartz can be found in the rocks phyllite, sandstone, and granite.

Hence, Option (1) is correct answer.

Rock phyllite are composed of mainly quartz, mica and chlorites. It is a soft and durable rock.

Sandstone are composed of mainly quartz, feldspar and lithic fragments. It is a sedimentary rock.

Granite are composed of three minerals mainly that is quartz, plagioclase and potassium feldspar and usually carry mica or hornblende. It is a light coloured igneous rock.

Thus from above conclusion we can say that Quartz can be found in the rocks phyllite, sandstone, and granite.

Hence, Option (1) is correct answer.

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Answer:

Explanation:

The number of molecules of silver nitrite can be found by using the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 3 × 6.02 × 10²³

We have the final answer as

Hope this helps you

Answer:

Chemical to thermal to mechanical

Explanation:

It is because gasoline is chemical energy which turns to thermal. Because it said hot gas which is thermal energy. Then it turns to mechanical for the car to even move.

All seeing eyes:

i know your answer it is the third one (C, chemical to thermal to mechanical)

Explanation:

my all seeing eyes know all the answers

Answer:

When the electrons hit the atoms in the chamber, they cause some of the electrons in the atoms to be stripped or knocked away. ... When one or more electrons is knocked off of an atom, it becomes positively charged. It is now an positive ion. A negative ion can be made by adding an electron to an atom.

Explanation:

Answer:

40 Newtons

Explanation:

4.218 is not even close to 40 N.

The 40 N force must be the larger force because 40 has a larger magnitude than the 4.218.

The term magnitude has to do with how large the force is. The larger the force the larger the value that is mentioned.

This implies that the 40 N force must be the larger force because 40 has a larger magnitude than the 4.218.

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Answer:

it depends upon the material used to make the brick

Answer:

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Explanation:

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Answer: Celsius

Explanation:

Answer:

OK hear is your answer

Explanation:

Advantages of this process are that dissolution and oil upgrading are taking place in the single reactor, products have high H:C ratio, and a fast reaction time, while the main disadvantages are high gas yield, high hydrogen consumption, and limitation of oil usage only as a boiler oil because of impurities.

Answer:

because there more acid in diet cola