Does a physical separation break intermolecular or intramolecular bonds?

Answer:

When the surface water is warm, the storm sucks up heat energy from the water, just like a straw sucks up a liquid. This creates moisture in the air. If wind conditions are right, the storm becomes a hurricane. This heat energy is the fuel for the storm.

Explanation:

I hope this can help you!

Answer:

Q = 96.6 j

Explanation:

Given data:

Heat required = ?

Initial temperature = 19°C

Final temperature = 33°C

Mass of disc = 3.0 g

Specific heat capacity = 2.3 J/g.°C

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 33°C - 19°C

ΔT = 14°C

Q = 3.0 g×2.3 J/g.°C × 14°C

Q = 96.6 j

Mass of Li₂O= 719.809 g

Given

1,060 g of CO₂

Required

Mass of Li₂O

Solution

Reaction

Possible compound : Li₂O

Li₂O(aq) + CO₂(g) → Li₂CO₃(aq)

mol CO₂(MW=44 g/mol) :

= 1,060 g : 44 g/mol

= 24.09

From the equation, mol ratio of LiO : CO₂ = 1 : 1, so mol Li₂O : 24.09

Mass Of Li₂O(MW=29.88 g/mol) :

= mol x MW

= 24.09 x 29.88

= 719.809 g

Answer:

You count the carbons. The way it is written is confusing but If there are ten carbons then its decane. If it’s 11 then its undecane

9 would be nonane

Explanation:

Answer: 2.01588

Explanation: 1 mole is equal to 1 moles H2

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.

Answer:

V₂ = 25.065 L

Explanation:

Given data:

Initial volume = 15L

Initial pressure = 1500 mmHg (1500/760 = 1.97 atm)

Initial temperature = 299 K

Final temperature = 350 K

Final volume = ?

Final pressure = 1050 mmHg (1050/760 = 1.38 atm)

Formula:

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 1.97 atm × 15 L × 350 K / 299 K × 1.38 atm

V₂ = 10342.5 atm .L. K / 412.62 K.atm

V₂ = 25.065 L

Answer:

b.Phosphorus.

d.Nitrogen.

Explanation:

To know the charge of an ion, we need to consider the octet rule: an atom gains, loses or shares electrons to complete their valence shell with 8 electrons.

Which of the following elements would you expect to form an ion with a charge of negative three?

a.Potassium. NO. K has 1 electron in the valence shell so it loses 1 electron to form K⁺.

b.Phosphorus. YES. P has 5 electrons in the valence shell so it gains 3 electrons to form P³⁻.

c.Aluminum. NO. Al has 3 electrons in the valence shell so it loses 3 electrons to form Al³⁺.

d.Nitrogen. YES. N has 5 electrons in the valence shell so it gains 3 electrons to form N³⁻.

Answer:

0.638 moles in 63.8g of calcium carbonate

Explanation:

Answer:

P₁  = 2.82 atm

Explanation:

Given data:

Initial volume = 28 L

Initial pressure = ?

Initial temperature = 65 °C (65 +273.15 = 338.15 K)

Final temperature =  35 °C (35 +273.15 = 308.15 K)

Final volume = 36 L

Final pressure = 2.0 atm

Formula:

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂

P₁ =  P₂V₂T₁/T₂ V₁  

P₁  = 2.0 atm × 36 L × 338.15 K / 308.15 K × 28 L

P₁  = 24346.8 atm .L. K / 8628.2 K.L

P₁  = 2.82 atm

The original pressure of the gas whose pressure changed to 2 atm is 2.82atm.

HOW TO CALCULATE PRESSURE:

P1V1/T1 = P2V2/T2

Where;

Learn more at: https://brainly.com/question/13154969?referrer=searchResults

Answer:

The variation of sunlight reaching Earth is one cause of ice ages. Over thousands of years, the amount of sunshine reaching Earth changes by quite a lot, particularly in the northern latitudes, the area near and around the North Pole.

Explanation:

I hope this helps.

Answer: "The geological record appears to show that ice ages start when the continents are in positions which block or reduce the flow of warm water from the equator to the poles and thus allow ice sheets to form. The ice sheets increase Earth's reflectivity and thus reduce the absorption of solar radiation."

Explanation:

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Answer:

They are both chemical changes

Explanation:

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Answer:

K = [NO₂]⁴[O₂] / [N₂O₅]²

Explanation:

Based on the chemical equilibrium reaction:

2 N₂O₅(g) ⇄ 4NO₂(g) + O₂(g)

The equilibrium reaction is obtained as the ratio between the multiplication of the concentrations of the reactants over the products powered to its reaction coefficient. That is:

Incomplete question. However, I assumed you are referring to this poster.

Explanation:

Interestingly, we notice that Harriet Tubman made use of figurative language in her words. She used the literary device of personification; in which a thing or condition is spoken as though it was human or living.

By this using such kind of expression that has been used by literate individuals,  it makes it surprising that Tubman is referred to as an illiterate.

For example, she personified "death", and "liberty" as objects she could have, obviously those were beautiful words which we expect only an educative person to say.

Answer: Chromium 2)8)8)6

Copper 2)8)8)8)3

Explanation:

Answer:

science is pointless and you will never need it so just get thru the class and let it go.

Explanation:

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Answer:

a

Explanation:

Li will have + charge and Cl with - charge.. Positive and negative attract each other forming ionic bond

The correct option is (a) The lithium ion are the chlorine ion will be attracted to each other.

Learn more about lithium and chloride brainly.com/question/3487113

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Answer:

Yes

Explanation:

Atoms bond in different ways. One of such is by transferring their valence electrons from one atom to the other.

This type of bonding is known as electrovalent or ionic bonding.

Answer:

what do you mean?

Explanation:

Answer:

Unknown 4

Explanation:

Answer:The first thing you need to do is to write the correctly balanced equation for the combustion of C2H2.

2C2H2 + 5O2 ==> 4CO2 + 2H2O  ...   balanced equation

Next, we find which reactant, if any, is limiting.  There are several ways to do this, but one easy way is to find moles of each reactant, and divide that value by the coefficient in the balanced equation and see which is less.

For C2H2, we have...

1.26 g x 1 mole/26.04 g = 0.0484 moles C2H2 (÷2 = 0.0242)

For O2, we have...

3.39 g O2 x 1 mol/32 g = 0.1059 moles O2 (÷5 = 0.0211) <- This is less than 0.0242 so it is limiting

Next, we use the moles of the limiting reactant (0.1059, not 0.0211) to find moles and then grams of CO2:

0.1059 moles O2 x 4 moles CO2/5 mole O2 x 44 g CO2/mole CO2 = 3.73 g CO2

Explanation:

Answer:

18

Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas.

Explanation:

hope the answer was helpful......

Time taken for star to reach Earth = 7.5 years

Given

7.5 light years(distance Earth-star)

Required

Time taken

Solution

Speed of light=v = 3 x 10⁸ m/s

1 light years = 9.461 × 10¹⁵ m= distance(d)

So time taken for 1 light years :

time(t) = distance(d) : speed(v)

t = 9.461 × 10¹⁵ m : 3 x 10⁸ m/s

t = 3.154 x 10⁷ s = 1 years

So for 7.5 light years, time taken = 7.5 years

Explanation:

Na represents the neutral element; Sodium. Because of it's atomic number of 11, It has 11 electrons.

Na+ on the other hand represents a cation. The sodium ion has lost an electron, hence the total number of electrons it has = 10.

The K and L shells each have maximum number of electrons they can accommodate. This is given by the formular; 2n^2

K shell = 2 (1)^2 = 2 electrons

L shell = 2 (2)^2 = 8 electrons

Seeing as Na+ has 10 electrons, It completely filled the K and L shells ( 2 + 8 = 10 )

Answer:

A = 2, B = 4 and C = 3

Explanation:

The problem here entails balancing of the chemical equations.

 It is given as;

                            A Al₂O₃   →  B Al   +  C O₂

To balance this reaction expression, we are going to use a mathematical approach.

Conserving Al; 2A = B

                    O:  3A  = 2C

let A = 1, B  = 2 and C = [tex]\frac{3}{2}[/tex]

 Now multiply through by 2;

       A = 2, B = 4 and C = 3

Answer:

The tool is called Graduated cylinders