How much less carbon does
natural gas release than
coal?

Answers

Answer 1

Answer:

natural gas releases 50 to 60 percent less carbon dioxide than coal

Explanation:

Natural gas is a fossil fuel, though the global warming emissions from its combustion are much lower than those from coal or oil. Natural gas emits 50 to 60 percent less carbon dioxide (CO2) when combusted in a new, efficient natural gas power plant compared with emissions from a typical new coal plant [1].


Related Questions

Rice has a bulk density of 0.9 g/mL, but an individual grain of rice has a
density of 1.1 g/mL. Water has a density of 1.0 g/mL. What would happen to
a cup of rice when poured into a pot of water?

Answers

Answer:

Individual grain of rice will sink.

Explanation:

Given:

Rice bulk density = 0.9 g/ml,

Individual grain of rice density = 1.1 g/ml

Water density = 1.0 g/ml

Find:

What happens with a cup of rice when poured into water =?

Explanation:

Each piece of grains of rice will sink into the water because individual grains of rice has a higher density than water.

10.Conduction is the method of heat transfer in solids but not liquids and gases. Why?
(1 Point)
Finiter your​

Answers

Answer:

Conduction only happens when the object is a solid, because conduction happens in objects that are closely, with molecules that are closely packed together, and have a definite shape. Since, in liquids and gases, the shape is not definite nor do they have closely packed molecules., conduction does not take place in them

Steel:
Propane:
Calcium chloride:
Water:

Answers

what is the question

Answer:

Steel is a metallic bond

Propane is a covalent bond

Calcium Chloride is an Ionic Bond

Water is a covalent bond

Explanation:

ence a material's properties, identify each of the , ionic, covalent, or metallic bonds

Ionic Bonds are where the extra outer electron of one atom transfers to the other atom.

Covalent Bonds are where the outer electron of one atom takes the open path to the nucleus (negative valance) of a 2nd atom.

Metallic Bonds are formed from the attraction between free electrons and fixed positively charged metallic atoms. Metallic bonds extend over the entire molecular structure.

Substance                  Properties

Steel                           Conducts electricity as solid and liquid

Propane                      Low melting point

Calcium Chloride       Conducts electricity when dissolved in water

Water                          Solid form is brittle, melts at 0C

Steel is an alloy of carbon, iron and other things

Propane = C3H8 C4- H+

Calcium Chloride  = CaCl2 = Ca2+ Cl-

Water = H2O = OH- and H+

what are two factors about particles that enable them to form solutions (SCIENCE)

Answers

Answer:

temperature and whether or not they are polar or non-polar.

Where do you think trees get the nutrients they need to grow?
I​

Answers

The answer is the sun and water

For the reaction NH4Cl (s)→NH3 (g)  + HCl (g) at 25°C, ΔH = 176 kJ/moland ΔS = 0.285 kJ/(mol - K).

What is the ΔG, and will this reaction be spontaneous in the forward direction?

169 kJ/mol; no

-91 kJ/mol; yes

91 kJ/mol; no

91 kJ/mol; yes

Answers

Answer:

C: 91 kJ/mol; no

Explanation:

Just took the quiz! :)

The ΔG is 91kJ/mol and the reaction is not spontaneous in the forward direction and the correct option is option 3.

What is Gibbs free energy change?

Gibbs free energy, also known as the Gibbs function, Gibbs energy, or free enthalpy, is a quantity that is used to measure the maximum amount of work done in a thermodynamic system when the temperature and pressure are kept constant.

The Gibbs free energy of the system is a state function because it is defined in terms of thermodynamic properties that are state functions.

The change in the Gibbs free energy of the system that occurs during a reaction is therefore equal to the change in the enthalpy of the system minus the change in the product of the temperature times the entropy of the system.

                                             ΔG = ΔH - TΔS

Given,

ΔH = 176kJ/mol

ΔS = 0.285kJ/mol K

T = 25⁰C = 273 + 25 = 298K

ΔG = ΔH - TΔS

ΔG = 176000 - 298 × 285

= 91070 = 91 kJ/mol

Since ΔG is positive, the reaction is not spontaneous in the forward direction.

Therefore, the ΔG is 91kJ/mol and the reaction is not spontaneous in the forward direction and the correct option is option 3.

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Balance the following chemical
equation by providing the correct
coefficients.
_FeBr3 +_Na2S -> _Fe2S3 + _NaBr

Answers

Answer:

2FeBr3 + 3Na2S ➡️ Fe2S3 + 6NaBr

Which of these is an example of interactions between the atmosphere and hydrosphere? (3 points) formation of snow cracking of rocks due to heat destruction of houses by wind uprooting of trees during tornadoes

Answers

Answer:

A. formation of snow

Explanation:

The formation of snow is an example of interactions between the atmosphere and hydrosphere.

As snow formation takes place when water vapor converted into liquid through condensation in the clouds. As water droplets rises high in clouds, cooler air present in atmosphere allow to lower the temperature and water droplets form ice or snow.

Hence, the correct option is A.

Answer:

A:formation of snow

Explanation:

why is the renewable energy resource you chose is negative?

Answers

Answer:

There’s a high need for energy storage and are very expensive. Renewable energy is also not always available because some need sun while others need wind.

Explanation:

I AM GIVING BRAINLIEST! PLEASEEEEEEEEEEE HELPPPPP I NEEED HELPPPP PLEASEEEE
Find the molecular formula for a compound with-
4.04 g N, 11.46 g O, molar mass 108.0 g/mol.
? moles N =
? moles O =
N : O =
empirical formula =
molecular mass of empirical formula =
The molar mass ratio of (molecular formula/empirical formula) =
molecular formula =

Answers

Answer:

moles of N

4.04 g / 14.01 = 0.288

moles of O

11.46 / 16 = 0.72 moles

divide both of them by the lowest number of moles to get the ratio

0.288 / 0.288= 1

0.72 / 0.288 = 2.48

now multiply both by 2, to make it a whole number =

ratio = 2 : 5

empirical formula = N2O5

the molar mass of the compound = 108.01

molar mass of the empirical formula = 108.02

when you divide this to get the factor the factor is also 1, so you dont really change anything

FORMULA = N2O5

Explanation:

I had it written done from my school notes

I really hope this helps

Ammonia (NH3) Is base.
How best do you describe Ammonia when dissolved in water

B. Ammonia forms a neutral solution.

C. Ammonia forms a buffered solution.

d. Ammonia acts as base because has OH- and makes water accepts hydrogen.

Answers

Answer:

Ammonia accepts a proton from water

Explanation:

Let us quickly remind ourselves of the Brownstead-Lowry definition of an acid. According to Brownstd-Lowry, an acid is any substance that donates hydrogen ions while a base is any substance that accepts hydrogen ions. The hydrogen ion is also known as a proton.

If we look at the behaviour of ammonia in water;

NH3(g) + H2O(l) ----> NH4^+(aq) + OH^-(aq)

We can easily see that ammonia accepts a proton from water (this makes it a Brownstd-Lowry base) and the hydroxide ion is formed in the process. Water functions as the proton donor here.

0.5 g of salt is dissolved in 25 g of water. Calculate the percentage amount of salt in the solution.

Answers

Total mass = 0.5+25=25.5
0.5/25.5 x 100 = 1.96
Salt percentage = 1.96%

What’s one renewable energy resource that can be used instead of fossil fuels ?

Answers

Answer:

Solar Energy & Wind Energy

Explanation:

These are renewable energy and can be used used in replacement for fossil fuels.

PLS MARK ME AS BRAINLIEST!!

Which value gives the number of particles in 1 mol of a substance?
6.02 x 1021
6.02 x 1022
6.02 x 1023
6.02 x 1024

Answers

Answer: it's C 6.02×10²³

Explanation:

I got it right in edge

The three most common phases of matter are

Answers

Answer:

Solid, Liquid, and Gas

Explanation:

There are constantly these three phases of matter around us every day. The water you drink is a liquid, the chair you sit on is a solid, and the air you breathe is a gas.

The conversation of cyclopropane to propene in the gas phase is a first order reaction with a rate constant of 6.7x10-⁴s-¹. a) if the initial concentration of cyclopropane was 0.25M , what is the concentration after 8.8min?b) how long (in min) will it take for the concentration of cyclopropane to decrease from 0.25M to 0.15M?

Answers

Answer: a)  The concentration after 8.8min is 0.17 M

b) Time taken for the concentration of cyclopropane to decrease from 0.25M to 0.15M is 687 seconds.

Explanation:

Expression for rate law for first order kinetics is given by:

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) concentration after 8.8 min:

[tex]8.8\times 60s=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{a-x}[/tex]

[tex]\log\frac{0.25}{a-x}=0.15[/tex]

[tex]\frac{0.25}{a-x}=1.41[/tex]

[tex](a-x)=0.17M[/tex]

b) for concentration to decrease from 0.25M to 0.15M

[tex]t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{0.15}\\\\t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\times 0.20[/tex]

[tex]t=687s[/tex]

A beaker contains 41.3 mL of pentane ( C5H12 , density is 0.626 g/mL). Determine how many C atoms this liquid contains.

Answers

Answer:

41.3 mL OF PENTANE CONTAINS 62.608 *10^-27 CARBON ATOMS.

Explanation:

Volume of Pentane = 41.3 mL

Density = 0.626 g/mL

Since density is defined as mass per unit volume. Calculate the mass:

Density = mass / volume

Mass = density * volume

Mass = 0.626 g/mL * 41.3 mL

Mass = 0.015 g of pentane

Molar mass of pentane C5H12 = ( 12* 5 + 1*12) = 60 + 12 = 72 g/mol

Number of moles = mass / molar mass

Number of moles = 0.015 g / 72 g/mol

Number of moles = 2.08 * 10^-4 moles.

Since 1 mole of pentane contains 5 moles of carbon, we can then calculate how many moles of csrbon 2.08*10^-4 moles will contain

1 mole of pentane = 5 moles of carbon

2.08 *10^-4 moles = x moles

x mole = 5 * 2.08*10^-4

x mole = 10.4 *10^-4 moles of carbon

In other words, 10.4*10^-4 moles of carbon is present in 41.3 mL of pentane

We can then calculate the number of carbon atoms present in the liquid using:

From 1 mole containing 6.02 *10^-23 atoms, 10.4 *10^-4 moles of pentane will contain:

1 mole = 6.02*10^-23 atoms

10.4 *10^-4 moles = (6.02*10^-23 * 10.4 *10^-4) atoms of pentane

= 62.608 *10 ^-27 atoms of pentane.

So therefore, 41.3 mL of pentane will contain 62.608 * 10 ^-27 carbon atoms

The number of C atoms in 41.3 mL of pentane (C₅H₁₂) of density 0.626 g/mL is 2.16x10²³.

To find the number of C atoms in pentane, we need to find the number of moles.

We can calculate the mass from the density:

[tex] d = \frac{m}{V} [/tex]

Where:

d: is the density = 0.626 g/mL

V: is the volume = 41.3 mL

The mass is:

[tex] m = d*V = 0.626 g/mL*41.3 mL = 25.85 g [/tex]

Now, with the molecular weight of the pentane, we can calculate the number of moles:

[tex] \eta = \frac{m}{M} = \frac{25.85 g}{72.15 g/mol} = 0.358 \:moles [/tex]

The number of C atoms can be found with Avogadro's number:

[tex] n_{C} = \frac{6.022\cdot 10^{23} \:atoms}{1\:mol}*0.358 \:moles = 2.16 \cdot 10^{23} \:atoms [/tex]

Therefore, the liquid contains 2.16x10²³ C atoms.

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Determine the power of 900 joules of work done in 4 seconds

A) 3600 W

B) 225 W

C) 904 W

D) 450 W​

Answers

Answer:

B. 225 W

Explanation:

Power is the measure of the amount of work done in a certain time frame. It can be found using the following formula.

p=w/t

where w is the amount of work done in joules and t is the amount of time in seconds.

We know that 900 joules of work was done in 4 seconds.

w=900 J

t= 4 s

Substitute these values into the formula.

p=900 J/ 4 s

Divide 900 by 4

900/4=225

p= 225 J/s

1 Joules of work per second (J/s) is equal to 1 Watt (W). Therefore, we can substitute Watts for Joules per second.

p= 225 Watts

The power is 225 Watts, and the correct answer is B.

is Naci a metal or none metel

Answers

Answer:

Salt (NaCl) is an ionic bond that consists of Sodium (Na) which is a metal with positive charge combines with Chlorine (Cl), a nonmetal with a negative charge.

Explanation:


Balance the combustion reaction between propane and oxygen.
C ₃ H ₈+ O ₂→ CO ₂ + H ₂ O

Answers

Answer:

The answer is C3H8 + 5O2 3CO2 + 4H2O .

Answer:

[tex]\huge \boxed{\mathrm{C_3 H_8 +5O_2 \Rightarrow 3CO_2 +4 H_2 O}}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Explanation:

[tex]\sf C_3 H_8 +O_2 \Rightarrow CO_2 + H_2 O[/tex]

Balancing Carbon atoms on the right side,

[tex]\sf C_3 H_8 +O_2 \Rightarrow 3CO_2 + H_2 O[/tex]

Balancing Hydrogen atoms on the right side,

[tex]\sf C_3 H_8 +O_2 \Rightarrow 3CO_2 +4 H_2 O[/tex]

Balancing Oxygen atoms on the left side,

[tex]\sf C_3 H_8 +5O_2 \Rightarrow 3CO_2 +4 H_2 O[/tex]

[tex]\rule[225]{225}{2}[/tex]

What are some lessons from
past epidemics that we can
apply to our current coronavirus pandemic?

Answers

That if we don’t separate our selves hundreds and thousands of people will die but if we stay apart it will resolve sooner

Answer:

The 1918 influenza pandemic and 2002-2003 SARS outbreak suggests social distancing measures, communication, and international cooperation are the most effective methods to slow down the coronavirus.

Explanation:

How are molecules and ionic compounds
the same?

Answers

They are the same due to the fact that they either share electrons or transfer electrons. Molecules from when atoms link together, and ionic compounds are formed due to the transfer of electrons.

Mantle material rises in convection currents because heated materials become more dense.

True Or False

Answers

Answer:

True

Explanation:

A student is trying to dissolve 20 grams of sugar in a beaker containing 250 milliliters of water at room temperature. What can the student do to make the sugar dissolve faster in the water? a. decrease the temperature of the water b.use larger pieces c.stir rapidly d.use less water

Answers

Answer:

C. Stir rapidly

review the types of elements that create ionic bonds as
well as the types of elements that create covalent bonds.
• N2 • CCl4 • SiO2
• AlCl3 • CaCl2 • LiBr

Answers

Answer:

N2 Covalent

CCl4 Covalent

SiO2 Covalent

AlCl3 Covalent

CaCl2 Ionic

LiBr Covalent

Explanation:

With covalent bonds, there is a sharing of electron pairs between the atoms.

With ionic bonds, there is complete transfer of valence electrons between atoms. Formed by the interaction of a metal with a non-metal.

Where:

Electrons aren't transferred in covalent bonds.

Protons aren't  transferred in covalent bonds

Protons aren't shared in covalent bonds

N3-

C4+

Cl-

Si4+ = Metal

O2- = Non-metal

Al3+ = Metal

Li+ = Metal

Ca2+ = Metal

Br  1-, 1+, 5+ = Halogen

N2 = N3- and N3- Covalent

CCl4 = C4+ and Cl- x4 Covalent

SiO2 = Si4+ and O2- x 2 Metal with non metal Covalent

AlCl3 = Al3+ and Cl- x 3 Covalent Though this one is complex as to why because it seems like it should be ionic

CaCl2 = Ca2+ and Cl- x 2 Metal with non-metal Ionic

LiBr = Li+ and Br- Covalent as neither is a non-metal

When 100 g of 20°C water is mixed with 50 g of 50°C water in a closed system, what is the final water

temperature?

A 20°C

B) 30°C

C) 35°C

D50°C

Answers

The answer is letter B

The final temperature of a mixture of 100g of water at 20°C and 50g of water at 50°C is 30°C.

What is the principle of method of mixtures ?

The amount of heat lost by the hotter sample = The amount of heat gained by the cooler water sample

The amount of heat gained by the cooler water sample is: -

Q1₁= m₁c(T – T₁)

The amount of heat lost by the hotter water sample is: -

Q₂ = m₂c(T₂ - T)

Q₁ = Q₂

m₁c(T – T₁) = m₂c(T₂ - T)

T = (m₁T₁ + m₂T₂)/(m₁+ m₂)

Let the final temperature of the mixture of 100g of water at 20°C and 50g of water at 50°C be T.

m₁ = 100g

T₁ = 20°C

m₂ = 50g

T₂ = 50°C

The final temperature of water = (100*20+50*50)/(100+50)

= (2000+2500)/(150)

=4500/150

=30°C

Therefore , the final temperature of a mixture of 100g of water at 20°C and 50g of water at 50°C is 30°C.

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Which of following is the most accurate description of a piston in an internal-
combustion engine?
A shaft that converts the up-and-down motion into a rotary motion
A plug that protrudes through the cylinder head and makes sparks that ignite the
air-and-fuel mixture
A can-shaped component that moves smoothly up and down and is the main
moving part
O A hollow metal tube drilled into the solid metal engine block

Answers

Answer:

A can-shaped component that moves smoothly up and down and is the main moving part

Explanation:

I chose the other answer that other person listed but got it wrong. This instead is the correct answer

Answer:

C.  A can-shaped component that moves smoothly up and down and is the main

moving part

Explanation:

The piston is a can-shaped component that can move smoothly up and down inside the cylinder; it moves up to compress the air-and-fuel mixture and is pushed down when the spark plug ignites the mixture, which causes an explosion.

What is the molarity of a NaCl solution with 3.7 moles and 2.3 L?*

Answers

Answer:

5.0 molatrity

Explanation:

because i just known

Answer:

Approximately 1.61

Explanation:

Molarity = Moles/Liters

Molariry = 3.7 moles NaCl / 2.3L

Molariry = 1.61

How does a salt bridge improve a battery​

Answers

The role of the salt bridge is to assure the neutrality of both compartments.

The salt is kinda like a current for the battery

An electron is in a region outside the nucleus. An electron
a) Is larger than a proton and has no charge
b) Has less mass than a proton and has a negative charge
c) Is smaller than a proton and has no charge
d) Has a positive charge

Answers

Answer:

b

Explanation:

electrons lie in the orbits of the atom. they are negatively charged and they are very small in size. they have very less mass than proton. ele tron has 1/1840 mass of proton.

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As an employee in the Lottery Commission, your job is to design a new prize. Your idea is to create two grand prize choices: (1) receiving $50,000 at the end of each year beginning in one year for 20 consecutive years, or (2) receiving $500,000 today followed by a one-time payment at the end of 20 years. Using an interest rate of 6%, which of the following comes closest to the amount prize (2) needs to pay at the end of year 20 in order that both prizes to have the same present value?a. $ 326,649 b. $ 440,463 c. $ 114,932 d. $ 393,342 e. $ 235,712 What is the solution to the system of equations graphed below? (0, 4) (1, 3) (3, 1) (4, 0) What is the mood and the tone in the poem Hair by Elizabeth Acevedo? For 120 consecutive days, a process engineer has measured the temperature of champagne bottles as they are made ready for serving. Each day, she took a sample of 8 bottles. The average across all 960 bottles (120 days, 8 bottles per day) was 46 degrees Fahrenheit. The standard deviation across all bottles was 0.8 degree.Round your answer to 4 digits after the decimal point if it is not an integer. Do NOT use comma in your numeric answers.Sample size is .Number of samples is .When constructing a x-bar chart:The center line should be .ESD(x-bar) equals .The upper control limit (UCL) should be .The lower control limit (LCL) should be . What is the length of AC Where did Native Americans who joined the mission system live?a. in the missionb. in the presidioC. in the settlementd. in their own villagesPlease select the best answer from the choices providedO AD For each sentence, choose a historical detail that helps clarify your understanding from the drop-down list."[T]he entire East Side had become . . . [a] mass of humanity that clogged the sidewalks.""Speakers would have to . . . report the progress of the strike back to the workers." Which is the graph of the linear equation 3x 4y = 12? Analyze this document by providing its HIPP: Historical context, Intended audience, authors Purpose, and authors Point of view.Recalling the Schoolchildrens Blizzard of 1888, ca 1930s 20 points! What was the result of the Supreme Court decision in Plessy v. Ferguson? What additional information is needed for each book entry to follow MLA guidelines? a word describing the medium a description of the books circulation the month and day the book was read the number of pages in the book Grosheim Incorporated has fixed expenses of $211,500 per year. Right now, Grosheim Incorporated is selling its products for $100 per unit. Management is contemplating a 20% increase in the selling price for the next year. Variable costs are currently 40% of sales revenue and are not expected to change in dollar amount on a per unit basis next year (the company will pay the same amount for variable costs next year). If fixed costs increase 10% next year, and the new selling price per unit goes into effect, how many units will need to be sold to breakeven? Perfect Tense Luis ____________ at OfficeMax for three years when he was promoted last fall. Now he is the manager of his own store.A. has worked B have been work C have been working D have worked Read this excerpt from the beginning of Nikolai Gogol's "The Nose":On the 25th March, 18, a very strange occurrence tookplace in St Petersburg.Which option best explains why Gogol chose to begin his story in this way? An automobile manufacturer is concerned about a fault in the braking mechanism of a particular model. The fault can, on rare occasions, cause a catastrophe at high speed. The distribution of the number of cars per year that will experience the catastrophe is a random variable with variance = 5.a) What is the probability that at most 3 cars per year will experience a catastrophe?b) What is the probability that more than 1 car per year will experience a catastrophe? NEED ANSWERS QUICK, I WILL GIVE BRAINLIEST 1.According to the following image, what is the length of AB, 2. solve for X factorise: 2x + 6y 2x-4 t + 2t squared Will mark brainliest! Thanks ! and like if you can please explain it cuz I want to understand it to :) Computing investing cash flows Indicate the effect each separate transaction has on investing cash flows. (Amounts to be deducted should be indicated with a minus sign.) Sold a truck costing $48,000, with $25,200 of accumulated depreciation, for $11,200 cash. The sale results in a $11,600 loss. Sold a machine costing $13,800, with $9,600 of accumulated depreciation, for $8,200 cash. The sale results in a $4,000 gain. Purchased stock investments for $17,600 cash. The purchaser believes the stock is worth at least $33,200. to make the perfect shade of orange cake frosting, Mya needs 8 drops of yellow food coloring for every 12 drops of red food coloring. If she adds 32 drops of yellow food coloring to her frosting, how many drops of red food coloring should she add?