What is Potential energy

The pressure inside the television tube containing 2×10¯⁵ g of N₂ at 22 °C is 4.94×10¯⁶ atm

Mole = mass / molar mass

Mole of N₂ =  2×10¯⁵ / 28

Mole of N₂ = 7.14×10¯⁷ mole

The pressure inside the television tube can be obtained by using the ideal gas equation as follow:

PV = nRT

Divide both side by V

P = nRT / V

P = (7.14×10¯⁷ × 0.0821 × 295) / 3.5

P = 4.94×10¯⁶ atm

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Answer:

See Explanation

Explanation:

The equation of the reaction is as follws;

4 C3H5(NO3)3 (l) → 12 CO2 (g) + 10 H2O (l) + 6 N2 (g) + O2 (g)

Number of moles of C3H5(NO3)3 = 187.4g /227 g/mol = 0.82555 moles

If 4 moles of C3H5(NO3)3 yields 12 moles of CO2

0.83 moles of C3H5(NO3)3 yields 0.82555 * 12/4 = 2.47665 moles of CO2

mass of CO2 produced = 2.47665 moles * 44 g/mol = 108.95 g of CO2

4 moles of C3H5(NO3)3 yields  10 moles of water

0.83 moles of C3H5(NO3)3 yields 0.82555 * 10/4 = 2.063875 moles of water

Mass of water = 2.063875 moles of water * 18 g/mol = 37.16 g

4 moles of C3H5(NO3)3 yields 1 mole of O2

0.83 moles of C3H5(NO3)3  yields 0.82555 * 1/4 = 0.2063875 moles of O2

Mass of O2 = 0.2063875 moles of O2 * 32 g/mol = 6.6 g

4 moles of C3H5(NO3)3 yields 6 moles of N2

0.83 moles of C3H5(NO3)3 yields 0.82555 * 6/4 = 1.238325 moles of N2

Mass of N2= 1.238325  moles of N2  *  28 g/mol = 34.67 g

To verify the law of conservation of mass, the total sum of mass of products must equal the sum of the mass of reactants. Thus;

108.95 g + 37.16 g +  6.6 g + 34.67 g = 187.4 g

The law of conservation of mass has been proven!

Answer: the answer is a

Explanation:

always eat fresh fruits and veggiies.

Answer:

c

Explanation:

Answer: [tex]49.7\ cm^3[/tex]

Explanation:

Given

At temperature [tex]T_1=289\ K[/tex]

Volume is [tex]V_1=42\ cm^3[/tex]

and the temperature changes to [tex]T_2=342\ K[/tex]

At this temperature volume is [tex]V_2[/tex]

Consider Pressure remains the constant

[tex]\therefore \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\\Rightarrow V_2=V_1\times \dfrac{T_2}{T_1}\\\\\text{Insert values}\\\\\Rightarrow V_2=42\times \dfrac{342}{289}\\\\\Rightarrow V_2=49.7\ cm^3[/tex]

The volume at this temperature is [tex]49.7\ cm^3[/tex]

Answer:

Natural selection says that either they evolve differently and increase their biodiversity or they die. Both wouldn't have enough food to survive so animals with those traits would become less and less common. ... Natural Selection can also decrease the biodiversity.

Answer: Increase their biodiversity or they die

Explanation:

Both wouldn't have enough food to survive so animals with those traits would become less and less common. ... Natural Selection can also decrease the biodiversity.

Answer:

D is the answer

Explanation:

Because thermal is Heat Energy

I hope it's right

Thermal energy is the energy associated with temperature. The correct option is d.

Thermal energy is the energy associated with a substance's or system's temperature. It is a type of kinetic energy that results from the random motion of tiny particles.

The higher the temperature, the larger the average kinetic energy of the particles and the bigger the amount of thermal energy present.

Heat transmission, phase shifts (such as melting or boiling), and the general thermal behaviour of materials all require thermal energy.

It differs from other types of energy including electrical energy (option a), chemical potential energy (option b), and gravitational potential energy (option c).

Thus, the correct option is d.

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Answer:

An example of 1 biome is the the grassland biome. The 2 plants that are indigenous or native to that biome are buffalo grass and ryegrass. In addition, the 2 animals that are indigenous to the grassland biome are gazelles and prairie dogs.

Explanation:

There are 5 types of biomes: aquatic, grassland, forest, desert and tundra. However, these biomes can be more specific for example, an aquatic biome can include freshwater and marine biomes.

Hope this helps!

Answer: The pH of resulting solution is 14.

Explanation:

pH of a solution is the negative logarithm of concentration of hydrogen ions.

If two or more solutions are mixed together then pH of the resulting solution is calculated as the sum of pH of all the solutions.

As pH of a given solution is 2 and pH of another solution is 12. Therefore, pH of the resulting solution is calculated as follows.

[tex]pH = pH_{1} + pH_{2}[/tex]

where,

[tex]pH_{1}[/tex] = pH of solution 1

[tex]pH_{2}[/tex] = pH of solution 2

Substitute the values into above formula as follows.

[tex]pH = pH_{1} + pH_{2}\\= 2 + 12\\= 14[/tex]

Thus, we can conclude that the pH of resulting solution is 14.

Answer:

sodium phosphide!!!!!!!!!!!!!!!

12M HNO3

Explanation:

A 600-ml solution of 16M nitric acid contains

16M HNO3 × 0.6 L = 9.6 m HNO3

so by increasing the volume by 200 ml the molarity of the solution becomes

Molarity = (9.6 mol HNO3)/(0.800 L)

= 12M HNO3

Answer:

practise, because it helps you get comfortable in speaking english

and there is also a quote that says "practise makes perfect"

Explanation:

HOPE IT HELPS

Answer:

partial pressure of gas D Pd = 15.5 kPa

Explanation:

As per the Dalton's law of partial pressure, in a mixture, pressure exerted by each gas when summed gives the total partial pressure exerted by mixture.

P(Total) = P1+P2+P3.....

Given P(Total) = 35.7 kPa

Partial pressure of gas A Pa = 7.8 kPa

Partial pressure of gas B Pb = 3.7 kPa

Partial pressure of gas C Pc =  8.7 kPa

There, Partial pressure of gas D Pd = P(Total) -(Pa+Pb+Pc)

Pd = 35.7-(7.8+3.7+8.7) = 35.7-20.2 kPa = 15.5 kPa

Therefore, partial pressure of gas D Pd = 15.5 kPa

1.39 g HCl

Explanation:

The balanced chemical equation for this reaction is given by

Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(g)

Convert the # of grams of Zn to moles:

1.25 g Zn × (1 mol Zn/65.38 g Zn) = 0.0191 mol Zn

Use the molar ratio to find the # of moles of HCl needed to react completely with the given amount of Zn:

0.0191 mol Zn × (2 mol HCl/1 mol Zn) = 0.0382 mol HCl

Convert this amount to grams:

0.0382 mol HCl × (36.458 g HCl/1 mol HCl) = 1.39 g HCl

(D)

Explanation:

On the left side two molecules, each made of 2 grays and 3 blues, which suggests that only (D) offers the right combination: 2 Al atoms and 3 O atoms that make up Al2O3.

Answer:

2Na + 2H20--> 2NaOH+H2

............. this is the ans

Answer:

answer is d

i hope this helps you

The reaction that represents natural nuclear decay is 335 U → He + 331 Th, i.e., option C.

Nuclear reactors continue to operate by enclosing the nuclear fission process.

Even after fission has stopped, radioactive decay of fission products and transuranic elements formed in a reactor produces heat.

Fission reactions can be moderated in order to increase fission or unmoderated in order to breed more fuel.

The reaction that represents natural nuclear decay is

Thus, the correct option is C.

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Answer:When two plates travel in the same direction, they intersect or collide. A convergent boundary is a collision between two plates that are traveling in the same direction. Large damaging earthquakes occur from the collision. The forming of massive folded mountains occurs as two continental plates collide.

Explanation:

Answer:

B hope help you stay happy

The Balanced chemical equation for above reaction will be :

[tex] \small{ \mathrm{3NaBr + H_3PO_4 \rightarrow Na_3PO_4 + 3HBr}}[/tex]

The Coefficients will be :

So, Correct option is :

A. 3, 1, 1, 3

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

Answer:

1. Allele for shortness (t)

2. Allele for tallness (T)

Explanation:

Gregor Mendel performed numerous experiments using pea plants (Pisium sativum). He tested the height traits of pea plants by crossing tall pea plants (TT) and short pea plants (tt) to obtain offsprings that were all tall (Tt) in the first filial generation (F1).

This is possible because the allele for tallness is DOMINANT while the allele for shortness is RECESSIVE. This means that tallness allele (T) will mask the phenotypic expression of shortness allele (t) when in an heterozygous state (Tt) as in the F1 generation.

Answer:

Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification.

Explanation:

The key components of nitrogen cycle are :nitrogen fixation, nitrification, assimilation, ammonification and denitrification.

It is a bio-geochemical cycle through which nitrogen is converted into multiple chemical forms when it circulates among atmospheric, terrestrial  and marine ecosystems .

Conversion of nitrogen is carried out through physical and biological processes.Nitrogen cycle is important as it affects of ecosystem processes like primary production and decomposition.

Conversion of nitrogen gas to nitrates and nitrites through atmospheric , industrial and biological processes is called nitrogen fixation. Nitrogen is assimilated in plants in form of nitrates or ammonium forms.When an animal or plant dies the nitrogen in organic form is converted to ammonium which is mineralization.

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Answer:

7200 kPa

Explanation:

Applying,

PV/T = P'V'/T'................ Equation 1

Where P = Initial pressure of neon gas, V = Initial volume of neon gas, T = Initial temperature of neon gas, P' = Final pressure of neon gas, V' = Final volume of neon gas, T' = Final Temperature of neon gas

Make P' the subject of the equation

P' = PVT'/V'T.............. Equation 2

Given: P = 900 kPa, V = 8.0 L, T = 300 K, V' = 2.0 L, T' = 600 K

Substitute these values into equation 2

P' = (900×8×600)/(2×300)

P' = 7200 kPa

Answer: 1.58 x [tex]10^{23}[/tex]

Explanation:

1 mole of magnesium chloride has a mass of 95.211 g and contains 6.022⋅[tex]10^{23}[/tex]formula units of magnesium chloride, you can say that,

25.0 g x (6.022 x [tex]10^{23}[/tex] form units MgCl2) /95.211 = 1.58 x [tex]10^{23}[/tex]

Answer:

0.11 moles

Explanation:

The equation of the reaction is;

2SO2 + O2 ------>2SO3

Number of moles of O2 in 3.42 g = 3.42g/32 g/mol = 0.11 moles

Hence, 0.11 moles of O2 is consumed when 3.42 g of O2 reacts with SO2 to form SO3.

Answer:

positive charge

Explanation:

protons are the positive chargers of any chemical reaction unlike neutron which are just the neutral part

Answer:

Positive charge

Explanation:

Electrons are Negative charge