is chemical energy stored in coal, gas, and oil?

Answers

Answer 1
Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.
Answer 2
It’s All of the above

Related Questions

Match the function to the part of the cell.

1.lysosome

A.serves as a temporary storage area for nutrients and waste materials

2.vacuole

B.breaks down waste materials

3.chloroplast

C.converts energy from the sun to food energy​

Answers

Lysosome is B. breaks down waste materials

Vacuole is A. temporary storage

Chloroplast is C. converts energy

Answer: Chloroplast: Converts energy from the sun to food energy

Answer: Vacuole: Servers as a temporary storage area for nutrients and waster materials.

Answer: Lysosome: Breaks down waste materials

Explanation: Dude above me is wrong

how do you melt water FREE 100 POINTS

Answers

Answer:

by adding heat

Explanation:

Adding heat can cause ice (a solid) to melt to form water (a liquid). Removing heat causes water (a liquid) to freeze to form ice (a solid).

by adding heat

when water was changes to soild or a gas , we say change to a different state of the matter. Even though the waters physical from change its molecular stay the same

If we add 22.5 g of HCl to 45.8 g of water, what is the percent by mass of HCl in the solution?

Answers

Answer:

[tex]\%m/m=33.0\%[/tex]

Explanation:

Hello there!

In this case, since the percent by mass of a solute in a solution is computed via the following division:

[tex]\%m/m=\frac{m_{solute}}{m_{solute}+m_{solvent}} *100\%[/tex]

Next, given the mass of HCl and that of water, we plug them in to obtain:

[tex]\%m/m=\frac{22.5g}{22.5g+45.8g} *100\%\\\\\%m/m=33.0\%[/tex]

Best regards!

the article is on newsela called the water cycle

Answers

Answer:

Explanation:Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?Canguru comeu algumas folhas de 3 galhos de eucalipto. Cada galho tinha inicialmente20 folhas. Canguru comeu algumas folhas do primeiro galho e depois comeu tantas folhas do segundo galho quantas tinham sido deixadas no primeiro galho. Depois ele comeu 2 folhas do terceiro galho. No total, quantas folhas foram dei-xadas nos 3 galhos?

i What
What is ment by
ment by covalency?​

Answers

When an element shares electrons with other atoms of the same or different elements to acquire stable electronic configuration, it is called covalency. If an atom shares 1 electron, its covalency is equal to 1. ... It needs 3 electrons to complete its octet.

When air hockey is played, a small plastic puck slides across a table that has holes through which air is forced. What effect does the air have on the game?

Answers

Answer:

it reduces the atmospheric pressure

What is the total number of nitrogen atoms in two mol of NH4NO3?

Answers

Answer:

the answer is B if one mol contains of NH4NO3 contains 6.02X 10^23

the answer would be B “6.02 x 10^23. If one mol of NH4NO3 contains 6.022 x 10^23 molecules of NH4NO3, and each molecule contains two nitrogen atoms (notice the two Ns representing nitrogen in the chemical formula), then there are 2 x 6.022 x 10^23 nitrogen atoms in two mol of NH4NO3

What is the atomic number for an element with 41 neurons and a mass number of 80

Answers

Answer:

92.9 I think not sure but hope this helps

C3H8(g) + 5 O2(g) ---->3 CO2 (g)+ 4H2O (g)

If the experiment contains 75.0 grams of O2, how many grams of H2O should be produced?

Answers

Answer: 33.75g H2O

Explanation:

75g O2 (1 mol O2/32g O2) (4 mol H2O/5 mol O2) (18g H2O/1 mol H2O) = 33.75g H2O

This is a stoichiometric calculation in which 75 is multiplied by 1, 4, and 18 (the top numbers), and then divided by (32 x 5 x 1), which are the bottom numbers.

Stoichiometry is super fun once you get the hang of it!!

A sugar solution is 15% pure. How
many grams of sugar are there in 550
grams of the solution?

Answers

Answer:

Amount of sugar in solution = 82.5 gram

Explanation:

Given:

Sugar in solution percentage = 15%

Total solution = 550 grams

Find:

Amount of sugar in solution

Computation:

Amount of sugar in solution = Sugar in solution percentage x Total solution

Amount of sugar in solution = 15% X 550

Amount of sugar in solution = 82.5 gram

need help asap, In this reaction how many units of B are required to form 40 units of C? A+2B--->C​

Answers

Answer:

80 units B

Explanation:

Equation for the reaction is given below:

A + 2B —> C

From the equation above,

2 units of B reacted to produce 1 unit to C.

Finally, we shall determine the unit of B needed to produce 40 units of C. This can be obtained as follow:

From the equation above,

2 units of B reacted to produce 1 unit to C.

Therefore, x unit of B will react to produce 40 units of C i.e

x unit of B = 2 × 40

x unit of B = 80 units

Thus, 80 units B is needed for the reaction.

For each of the solutions from above order the following in increasing polarity (from lowest to highest): solvent, more polar molecule, less polar molecule, silica gel. If the difference cannot be determined, indicate this by entering N/D. Note you might have to use a bit of logic and consider the properties of each. Useful information is found in the lab manual and student guide.
Solution % %Ethyl Lowest Next Lowest Next Highest Highest Number Hexane Acetate Polarity Polarity Polarity Polarity 1 100 0 4 75 25 3 50 50 5 5 25 75 2 0 100

Answers

Answer:

Solvent, less polar molecule, more polar molecule, silica gel

Explanation:

Solvent has lowest polarity but less polar molecule has more polarity than solvent. The more polar molecule has higher polarity value whereas silica gel has the highest polarity. The polarity of compounds is due to the difference of electronegativity values of the elements that bonded with each other. The difference of electronegativity value is high between silicon and oxygen is responsible for high polarity of silica gel.

What is the function of white blood cells?
A) immunity
b) carry nutrients, waste
C) blood clotting

Answers

Answer:

A

Explanation:

They help fight infection and other disease

Answer:

immunity is the answer for this question

120 L of C3H8 is how many grams?

Answers

Answer:

44.09562 grams

Explanation:

help people i really need this

Answers

Option “A” is the crest of the wave because it’s the maximum value of upward displacement within a cycle.

A chemist has a sample of 1.88 M HCl. What volume of the sample does he require to prepare 200 mL of 0.45 M HCl?

Answers

Answer: v = 200 ml · 0.45 M/ 1.88 M

Explanation: when solution is diluted, amount of substance

is same and n= c · V v1 = v2 · c2 / c1

The appropriate answer is "47.87 mL".

Given values are:

Concentration of undiluted HCl, [tex]C_1=1.88 \ M[/tex]Concentration of diluted HCl, [tex]C_2=0.45 \ M[/tex]Volume of diluted HCl, [tex]V_2=200 \ mL[/tex]

By using the dilution equation, we get

→ [tex]C_1V_1=C_2V_2[/tex]

or,

→     [tex]V_1=\frac{C_2V_2}{C_1}[/tex]

By substituting the given values, we get

→          [tex]=\frac{0.45\times 200}{1.88}[/tex]

→          [tex]=\frac{90}{1.88}[/tex]

→          [tex]= 47.87 \ mL[/tex]

Thus the above answer is correct.

Learn more about volume here:

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Is this equation balanced: AgNO3 + 2 KCl -->AgCl + KNO3 Yes No

Answers

Answer:

No

Explanation:

AgNO₃ + KCl --> AgCl + KNO₃

This reaction is a precipitation reaction. AgCl is formed as a white solid due to its low solubility in water.

A 23.8 mL sample of HCl of unknown concentration is neutralized by 5.45 mL of 0.331 M Ca(OH)2. What is the concentration of the HCl solution?


(The answer is 0.152, but I need an explanation/steps to get that answer)

Answers

a becuase that is the one that is also b becuase a and c

True or false silicon is a nonmetal

Answers

Answer:

True , Silicon is a nonmetal

An FCC iron-carbon alloy initially containing 0.20 wt% C is carburized at an elevated temperature and in an atmosphere wherein the surface carbon concentration is maintained at 1.0 wt%. If after 51 h the concentration of carbon is 0.35 wt% at a position 3.9 mm below the surface, determine the temperature at which the treatment was carried out. You will need to use data in the two tables below to solve this problem.

Answers

Answer:

Explanation:

[tex]\text{From the information given:}[/tex]

[tex]C_o = 0.20 \ wt\% \\ \\ C_s = 1 \ wt\% \\ \\ t = 51 \ h \\ \\ x = 3.9 \ mm \\ \\ C_x = 0.35 \ wt\%[/tex]

[tex]\text{Using Fick's 2{nd} \ law \ of \ diffusion;} \\ \\ \dfrac{C_x- C_o}{C_s-C_o}= 1 - erf ( \dfrac{x}{2\sqrt{Dt}})[/tex]

[tex]\dfrac{0.35-0.20}{1-0.20}= 1 - erf ( \dfrac{x}{2\sqrt{Dt}})[/tex]

[tex]0.1875 = 1 - erf ( \dfrac{x}{2\sqrt{DT}}) \\ \\ erf ( \dfrac{x}{2\sqrt{DT}}) = 1 - 0.1875 \\ \\ erf ( \dfrac{x}{2\sqrt{DT}}) = 0.8125[/tex]

[tex]\text{To find the value of Z by Obtaining Data from Tabulation of Error Function}[/tex] [tex]\text{Table Values:}[/tex]

Z              erf(z)

0.90  →  0.7970

0.95  →  0.8209

?        →  0.8225

[tex]\dfrac{z-0.90}{0.95-0.90}= \dfrac{0.8125-0.7970}{0.8209-0.7970}[/tex]

[tex]\dfrac{z-0.90}{0.05}= \dfrac{0.0155}{0.0239}[/tex]

[tex]z = 0.9324[/tex]

[tex]\text{To determine the diffusion coefficient;}[/tex]

[tex]erf (0.9324) = 0.8125 = erf (\dfrac{x}{2\sqrt{Dt}}) \\ \\[/tex]

[tex]\dfrac{x}{2 \sqrt{Dt}}= 0.9324 \\ \\ \dfrac{3.9 \times 10^{-3}}{2 \times \sqrt{D\times 51 \times 3600}} = 0.92324 \\ \\ \sqrt{D} = 4.88 \times 10^{-6} \\ \\ D = \sqrt{4.88 \times 10^{-6}} \\ \\ D = 2.38 \times 10^{-11} \ m^2 /s[/tex]

How many joules are in 1.81 calories need to know ASAP

Answers

7.57304 Joules

Hope this helped you.

Equal masses of aluminum and copper are heated to 100 degree C and placed in water. Which would cause the water to reach the higher temperature? Explain your answer.

Answers

Answer:

copper will reach to higher temperature first.

Explanation:

Solubility is the mass in a given volume of a substance.
True
False

Answers

Answer: True

Explanation:

You heat water and olive oil in two separate pans for a delicious new pasta recipe. The pans are the same temperature, but only the water is boiling! Why?

A
Olive oil has weaker intermolecular forces than water. This makes the intermolecular forces in oil easier to break, and keeps the molecules stuck together in a liquid state.

B
Water has weaker intermolecular forces than olive oil. This makes the intermolecular forces easier to break, allowing the individual water molecules to separate and change to a gas.

C
Water is losing electrons more quickly than olive oil is. The electrons float to the surface of the water, and their movement allows the phase change to happen.

Answers

Answer:

I think A is the correct answer

Answer: the answer is B 100%

Where do most of the rivers in North Carolina flow to?

Answers

Gulf of Mexico and the Atlantic.

In the reaction 2 H, Ł02 → 2 H, O, what is the mole ratio of hydrogen to water?
A 2:2
B 2:1
C 1:2
D 4:4

Answers

A

because both have 2's in front of them

Jason has a bag that contains
8
88 identically shaped boxes.
6
6start color #6495ed, start text, 6, end text, end color #6495ed of the boxes are
blue
bluestart color #6495ed, start text, b, l, u, e, end text, end color #6495ed, and
2
2start color #28ae7b, start text, 2, end text, end color #28ae7b are
green
greenstart color #28ae7b, start text, g, r, e, e, n, end text, end color #28ae7b.
3
of the blue boxes have a prize
3 of the blue boxes have a prizestart color #6495ed, start text, 3, space, o, f, space, t, h, e, space, b, l, u, e, space, b, o, x, e, s, space, h, a, v, e, space, a, space, p, r, i, z, e, end text, end color #6495ed, and
1
of the green boxes has a prize
1 of the green boxes has a prizestart color #28ae7b, start text, 1, space, o, f, space, t, h, e, space, g, r, e, e, n, space, b, o, x, e, s, space, h, a, s, space, a, space, p, r, i, z, e, end text, end color #28ae7b.
Jason randomly selects a box from the bag. Let
A
AA be the event that he selects a box with a prize and
B
BB be the event that the box is green.
Which of the following statements are true?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
P
(
A
|
B
)
=
P
(
A
)
P(A | B)=P(A)P, left parenthesis, A, start text, space, vertical bar, space, end text, B, right parenthesis, equals, P, left parenthesis, A, right parenthesis, the conditional probability that Jason selects a box with a prize given that he has chosen a green box is equal to the probability that Jason selects a box with a prize.

(Choice B)
B
P
(
B
|
A
)
=
P
(
B
)
P(B | A)=P(B)P, left parenthesis, B, start text, space, vertical bar, space, end text, A, right parenthesis, equals, P, left parenthesis, B, right parenthesis, the conditional probability that Jason selects a green box given that he has chosen a box with a prize is equal to the probability that Jason selects a green box.

(Choice C)
C
Events
A
AA and
B
BB are independent events.

(Choice D)
D
The outcomes of events
A
AA and
B
BB are dependent on each other.

(Choice E)
E
P
(
A
and
B
)
=
P
(
A
)

P
(
B
)
P(A and B)=P(A)⋅P(B)P, left parenthesis, A, start text, space, a, n, d, space, end text, B, right parenthesis, equals, P, left parenthesis, A, right parenthesis, dot, P, left parenthesis, B, right parenthesis, the probability that Jason selects a box that contains a prize and is green is equal to the probability that Jason selects a box with a prize multiplied by the probability that he selects a green box.

Answers

Answer:

A. P(A | B)=P(A)P, left parenthesis, A, start text, space, vertical bar, space, end text, B, right parenthesis, equals, P, left parenthesis, A, right parenthesis, the conditional probability that Jason selects a box with a prize given that he has chosen a green box is equal to the probability that Jason selects a box with a prize.

B. P(B | A)=P(B)P, left parenthesis, B, start text, space, vertical bar, space, end text, A, right parenthesis, equals, P, left parenthesis, B, right parenthesis, the conditional probability that Jason selects a green box given that he has chosen a box with a prize is equal to the probability that Jason selects a green box.

C. Events AAA and BBB are independent events.

E. P(A and B)=P(A)⋅P(B)P, left parenthesis, A, start text, space, a, n, d, space, end text, B, right parenthesis, equals, P, left parenthesis, A, right parenthesis, dot, P, left parenthesis, B, right parenthesis, the probability that Jason selects a box that contains a prize and is green is equal to the probability that Jason selects a box with a prize multiplied by the probability that he selects a green box.

Explanation:I got it right on Kahn

valence number of a metallic element X is 3. What is the formula of its oxide?​

Answers

Answer:

the formula of its oxide is X2O3.

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore,  the formula of given metallic oxide is X[tex]_2[/tex]O[tex]_3[/tex].

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.

Since valence number of a metallic element X is 3 and  valence number of oxide is 2. So,  the formula of its oxide is X[tex]_2[/tex]O[tex]_3[/tex].

Therefore,  the formula of given metallic oxide is X[tex]_2[/tex]O[tex]_3[/tex].

To learn more about chemical compound, here:

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2C2H2 + 502 = 4CO2 + 2H20
when 20000g of 2C2H2 + 5O2 = how much 4CO2?​

Answers

Answer:

6.761 × 10⁴ g

Explanation:

Step 1: Write the balanced combustion reaction

2 C₂H₂ + 5 O₂ ⇒ 4 CO₂ + 2 H₂O

Step 2: Calculate the moles corresponding to 20000 g of C₂H₂

The molar mass of C₂H₂ is 26.038 g/mol.

20000 g × 1 mol/26.038 g = 768.11 mol

Step 3: Calculate the moles of CO₂ produced from 768.11 moles of C₂H₂

The molar ratio of C₂H₂ to CO₂ is 2:4.

768.11 mol C₂H₂ ×  4 mol CO₂/2 mol C₂H₂ = 1536.2 mol CO₂

Step 4: Calculate the mass corresponding to 1536.2 moles of CO₂

The molar mass of CO₂ is 44.01 g/mol.

1536.2 mol × 44.01 g/mol = 6.761 × 10⁴ g

Who ever has the best answer to this question gets brainliest

Answers

Answer:

"Conduction from the sun heating the metal slide" is the answer

Explanation:

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