What are renewable resources?

Answer:

The given reaction is a combustion reaction of benzene,

C

6

H

6

. From its balanced chemical equation,

2

C

6

H

6

+

15

O

2

→

12

C

O

2

+

6

H

2

O

,

the mass of carbon dioxide

(

C

O

2

)

produced from 20 grams (g) of

C

6

H

6

is determined through the molar mass of the two compounds, given by,

M

M

C

O

2

=

44.01

g

/

m

o

l

M

M

C

6

H

6

=

78.11

g

/

m

o

l

and their mole ratio:

12

m

o

l

C

O

2

2

m

o

l

C

6

H

6

→

6

m

o

l

C

O

2

1

m

o

l

C

6

H

6

With this,

m

a

s

s

o

f

C

O

2

=

(

20

g

C

6

H

6

)

(

1

m

o

l

C

6

H

6

78.11

g

C

6

H

6

)

(

6

m

o

l

C

O

2

1

m

o

l

C

6

H

6

)

(

44.01

g

C

O

2

1

m

o

l

C

O

2

)

=

(

20

)

(

6

)

(

44.01

)

g

C

O

2

78.11

=

5281.2

g

C

O

2

78.11

m

a

s

s

o

f

C

O

2

=

67.6

g

C

O

2

Therefore, the mass in grams of

C

O

2

formed from 20 grams of

C

6

H

6

is

67.6

g

C

O

2

.

it is a problem of app

The grams of C₆H₆ needed to produce 25 g of CO₂ are 7.38g.

Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.

No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.

Mass of a particular product is also find out by stoichiometry of a reaction as per the no. of mole given in the reaction.

Given,

Mass of CO₂ = 25g

2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O

As per reaction, 156g of C₆H₆ gives - 528g of CO₂

0.295g of C₆H₆ gives - 1g of CO₂

0.295 × 25 g of C₆H₆ gives - 25g of CO₂ = 7.38g C₆H₆

Therefore, The grams of C₆H₆ needed to produce 25 g of CO₂ are 7.38g.

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The pressure in atmospheres of the given mole and volume of helium gas is 4.7atm.

Given the data in the question;

Pressure in atmosphere; [tex]P = \ ?[/tex]

The Ideal gas law emphasizes on the behavior of a hypothetical ideal gas. It states that pressure P multiply by volume V is equal to moles times temperature and the universal gas constant.

It is expressed;

[tex]PV = nRT[/tex]

Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant.( [tex]R = 0.08206Latm/molK[/tex] ).

To determine the pressure in atmosphere, we substitute our values into the expression above.

[tex]PV = nRT\\\\P = \frac{nRT}{V} \\\\P = \frac{1.92mol\ *\ 0.08206Latm/molK\ *\ 298.15K}{10.0L} \\\\P = \frac{46.975Latm}{10.0L}\\\\P = 4.7atm[/tex]

Therefore, the pressure in atmospheres of the given mole and volume of helium gas is 4.7atm.

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Answer:The energy of the molecules in the computer decreases.

Explanation:LET ME KNO IM WRONG

Answer: The energy of the molecules decrease in the computer

Explanation:

This is because you turned off the computer cooling it down and slowing the molecules.

Taking into account the definition of calorimetry, 0.0185 moles of water are required.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

So, the equation that allows to calculate heat exchanges is:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, you know:

Replacing in the expression to calculate heat exchanges:

92.048 kJ = 4.186 [tex]\frac{J}{gC}[/tex]× m× (100 °C -34 °C)

92.048 kJ = 4.186 [tex]\frac{J}{gC}[/tex]× m× 66 °C

m= 92.048 kJ ÷ (4.186 [tex]\frac{J}{gC}[/tex]× 66 °C)

m= 0.333 grams

Being the molar mass of water 18 [tex]\frac{g}{mole}[/tex], that is, the amount of mass that a substance contains in one mole, the moles of water required can be calculated as:

[tex]amount of moles=0.333 gramsx\frac{1 mole}{18 grams}[/tex]

amount of moles= 0.0185 moles

Finally, 0.0185 moles of water are required.

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Answer:

39.379 liters

Explanation:

One mole of gas at STP = 22.4 l / mole

22.4 l/mole * 1.758 mole = 39.379 liters

Answer:

Below

Explanation:

The ocean is becoming more acid, which means the pH is decreasing. In that time frame it has decreased by about 0.05

Explanation:

Wind helps to get out molecules of water from clothes.

In summer Ball is hard b because due to heat kinetic energy of molecules increases

Answer:

The forces that keep liquid particles together are called intermolecular forces of attraction.

The compound that is most likely present when treated with bromine and the sample absorbs the red bromine color is ; Cycloheptene

Cycloheptene is an unsaturated colorless oily liquid which is insoluble in water it absorbs Bromine when used in performing unsaturation test due it unsaturated nature.

The red bromine color will be absorbed when used to treat Cycloheptene but will not be absorbed when used to treat cycloheptane due to its saturated nature.  

Hence we can conclude that the compound that is present is Cycloheptene.

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Answer:

F is correct

Explanation:

When an atom or group of atoms" has more protons than electrons",it is positively charged. An atom or group of atoms that has the same number of protons and electrons is neutrally charged.

Answer: If an object that has an excess of positive electrons it is a positively charged object.

Answer:

protein, carbs, and fats.

Explanation:

Those are the three main sources of macronutrients.

(this isn't a chemistry, it's health)

Answer:

fats, carbohydrates and proteins

Explanation:

I don't know, I answered that on my test and it was correct

The second name that can be used to describe actual yield is Theoretical yield is another name for the actual yield

The actual yield is the amount of product obtained from a chemical reaction and it is lesser or equal to the theoretical yield ( the amount of product that can be obtained from a reaction when all reactants are converted ).

Hence we can conclude that theoretical yield is another name for the actual yield.

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Answer: B) 2+

Explanation:

   There are exactly 2.54 centimeters in an inch, the closest option is:

B) 2+

Answer:

2.54 centimetres

Explanation:

Ur options are wrong

Answer:

The the salt dissolves

Explanation:

The salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules.

Answer:

they share electrons to complete eachothers outer shell

Explanation:

Answer:

i think b is the answer hope this helps:))

Answer:

0.0562

Explanation:

Ph=-log[H+]

to find the h+ is the antilogarithm of the Ph.

Which is 10 raised to the power - Ph.

Answer:

5.62

-2

Explanation:

What is the H+ concentration in a solution with a pH of 1.25? Round to the nearest hundredth.

5.62 × 10n M n= -2

Answer:

D. Na2O

Because we already know that sodium oxide is a binary ionic compound because it contains one metal cation and one non-metal anion.

Answer:

D. Na2O

Explanation:

Sodium oxide (Na2O) is an ionic compound. Its constituent atoms are, respectively, a metal and a non-metal.

Sodium (Na), as a metal, will attempt to lose electrons to reach an octet state. Oxygen (O2), as a non-metal, will attempt to gain electrons to reach an octet state.

:-befrank

Explanation:

The photo is the net ionic equation for the Calcium ions

The net ionic equation for the reaction is [tex]3Ca^{+2} + 2PO^{-3}_2----- > Ca_3(PO_4)_2[/tex]

A chemical reaction is the chemical transformation of one set of chemical substances into another.

When chemical bonds between the atoms are formed or broken, chemical reactions occur.

The substances that initiate a chemical reaction are known as reactants, and the substances that result from the reaction are known as products.

Plants grow, start producing fruit, and decompose to become compost for new plants through chemical reactions.

The reaction for the given scenario is,

[tex]3Ca^{+2} + 2PO^{-3}_2----- > Ca_3(PO_4)_2[/tex]

Thus, above mentioned is the chemical reaction.

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Answer:

Positively charged ions move to the negative electrode during electrolysis

Explanation:

Electrolysis is the process by which electric current is passed through a substance to effect a chemical change

I hope I was able to help

Answer:hop this helps

Explanation:

Heart-shaped faces is the characteristic all owl families share and it is denoted as option D.

This is a type of bird which is known for its heart shaped face, big round eyes and reversible toe.

This animal has majority of its species as night time hunters which is why option D was chosen.

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Answer:

True

Explanation:

It's a true statement

Answer:

True

Explanation:

A species is a group of similar organisms that can breed with one another to produce fertile offspring. For example, humans are one species and dogs are another species. Individuals of the same species can reproduce to make more individuals of the same species.

calcium chloride and carbon dioxide

Given that the alkyne has a formula as C₆H₁₀, the IUPAC name of the alkyne is hexyne

Alkynes are unsaturated hydcarbons with the general formula of CₙH₂ₙ₋₂. They contains triple bonds (C≡C) in the carbon chains. The simplest member of this family is ethyne (C₂H₂)

The first nine members of the Alkynes sre:

Considering the question given above, the formula of the alkyne is C₆H₁₀.

Therefore, the name of the alkyne is hexyne

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