The major difference between fossil fuels and biofuels is you can drive farther on a single tank of fossil fuel than you can on a single tank of biofuel. The correct option is D.
What are fossil fuels?A fossil is a naturally extracted fuel, for example, the anaerobic decompression of buried dead animals, while biofuel is any biomass fuel, plant or algae, or animal waste. Since these materials can quickly be replenished, biofuels are considered renewable energy sources.
Biofuels are created from renewable feedstocks, unlike fossil fuels, which are finite resources. As a result, their manufacturing and use might theoretically continue forever.
Therefore, the correct option is D. You can drive farther on a single tank of fossil fuel than you can on a single tank of biofuel.
To learn more about fossil fuels, refer to the link:
https://brainly.com/question/3371055
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the force that one surface exerts on another when the two rub against each other is called _
Answer:
friction
Explanation:
please help ASAP
17.8 mL of HNO3 is neutralized in a titration by 24.7 mL of a 0.299 M Sr(OH)2 solution. Calculate the pH of the unknown acid.
Answer:
0.1
Explanation:
We must first put down the equation of the reaction in order to guide our solution of the question.
2HNO3(aq) + Sr(OH)2(aq) -------> Sr(NO3)2(aq) + 2H2O(l)
Now from the question, the following were given;
Concentration of acid CA= ??????
Concentration of base CB= 0.299M
Volume of acid VA= 17.8ml
Volume of base VB= 24.7ml
Number of moles of acid NA= 2
Number of moles of base NB= 1
From;
CAVA/CBVB= NA/NB
CAVANB= CBVBNA
CA= CBVBNA/VANB
SUBSTITUTING VALUES;
CA= 0.299 × 24.7 ×2 / 17.8×1
CA= 0.8298 M
But;
pH= -log[H^+]
[H^+] = 0.8298 M
pH= -log[0.8298 M]
pH= 0.1
The tendency of an object to resist a change.
A. Inertia
B. Friction
C. Law of conservation of motivation
D. Force
Answer:
inertia is the tendency of an object to resist a change
Is the molecule saturated or unsaturated
Answer:
Guessing its unsaturated.
Explanation:
A fully saturated compound contains no double or triple bonds. Alternatively, if a molecule contains double or triple bonds, it is considered to be unsaturated.
When red litmus paper is added to limewater, then what will
be the change in litmus paper? Give reason. Write the chemical
formula of limewater also.
Red Litmus paper turns blue
Answer:
[tex] Ca(OH) _2 [/tex]
Explanation:
In lime water [tex] \red{\bold {RED}} [/tex] litmus paper turns [tex] \blue {\bold {BLUE}} [/tex] because lime water is alkaline.
[tex]formula \: for \: lime \: water : Ca(OH) _2 \\ [/tex]
You complete a titration and find that you need 2.5 mL of a 0.1M NaOH to neutralize 250 mL of
the river water.
How many moles of NaOH did you use to neutralize the river water?
Answer:
0.00025 mole
Explanation:
The number of moles of a substance can be mathematically derived from the following formula
1. mass of substance (in grams)/molar mass of substance (in grams/mole)
2. molarity of substance (in mol/dm3) x volume of substance (in dm3)
In this case, the molarity and volume of NaOH are provided, hence, the second formula will be applicable.
2.5 mL of NaOH was used = 0.0025 dm3
Number of mole of NaOH that was used to neutralize the river water:
= 0.1 x 0.0025 = 0.00025 mole
The number of mole of NaOH used to neutralize the river water is 0.00025 mole.
Using the stars as an example explain how nuclear fusion works
What is the ion in acids that determines if they are safe to eat?
I need an answer but I can´t give anything because i don´t know how
Answer:
Hydrogen ion.
Explanation:
Hydrogen ion is present in the acids which indicates if they are safe for eating or not. The weak acid is present in citrus so it is safe to eat. Weak acid means the concentration of hydrogen ion is lower. If this concentration exceeds so the food is not safe to eat or drink. The pH of acid more than 5 is good to eat but below 5 can adversely affect our body if we consume it.
This is for chemistry
I need help for this question
Answer:
what is the quetion.......
Explanation:
Asap help
It's very important
Answer:
b. blinking of eyes
Explanation:
Answer:
The answer is B
Explanation:
Blinking is involuntary but also can be done voluntarily.
Which function allows a user to add another item to a list in Python? order() print() sort() append()
Answer:
append()
Explanation:
just took this test, chose this answer, and got it correct
Answer:
d
Explanation:
I guess it is a small world cuz i doing the test on flvs to
hope this helps
F2(g)+2Br(aq)=Br(t)+F(aq)
which species is redused?
a)F
b)Br
c)F2
d)Br2
The Answer For Your Question is:
A) F
If 1.27 moles of bromine gas (Br2) react with excess phosphorus (P), how many moles of phosphorus tribromide (PBr3) will be produced?
Answer:
0.85 mole of PBr3.
Explanation:
We'll begin by writing the balanced equation for the reaction. This is given below:
3Br2 + 2P —> 2PBr3
From the balanced equation above,
3 moles of Br2 reacted to produce 2 moles of PBr3.
Therefore, 1.27 moles of Br2 will react to produce = (1.27 x 2)/ 3 = 0.85 mole of PBr3.
Therefore, 0.85 mole of PBr3 is produced by the reaction.
The kinetics of a gas phase reaction of the form A → Products results in a rate constant of 1.308 M⁻¹ s⁻¹. For this reaction, the initial concentration of A is 0.155 M. What is the concentration of A after 0.385 seconds?
Answer:
[tex]C_A=0.144M[/tex]
Explanation:
Hello,
In this case, given the rate constant, we infer this is about a second order reaction, whose equation is:
[tex]\frac{dC_A}{dt}=kC_A^2[/tex]
Thus, by integration we obtain:
[tex]\frac{1}{C_A}= \frac{1}{C_A_0}+kt[/tex]
Hence, we solve for the final concentration after 0.385 s:
[tex]\frac{1}{C_A}= \frac{1}{0.155M}+\frac{1.308}{Ms} *0.385s=\frac{6.955}{M}\\ \\C_A=\frac{M}{6.955} \\\\C_A=0.144M[/tex]
Best regards.
Calculate the molarity of a solution containing 0.2 mol of sodium hydroxide dissolved in 0.5 L of water. Be sure to report your answer in proper significant figures and use the appropriate symbol.
Answer:
The molarity is 0.4 [tex]\frac{moles}{liter}[/tex]
Explanation:
The Molarity (M) or Molar Concentration is a concentration unit that indicates the number of moles of the solute per liter of solution. In other words, molarity is defined as the number of moles of solute that are dissolved in a given volume.
The Molarity of a solution is determined by the expression:
[tex]Molarity (M)=\frac{number of moles of solute}{volume}[/tex]
Molarity is expressed in units ([tex]\frac{moles}{liter}[/tex]).
In this case:
number of moles of solute (sodium hydroxide)= 0.2 molesvolume= 0.5 LReplacing:
[tex]Molarity (M)=\frac{0.2 moles}{0.5 L}[/tex]
Molarity= 0.4 [tex]\frac{moles}{liter}[/tex]
The molarity is 0.4 [tex]\frac{moles}{liter}[/tex]
What is the molarity of a solution formed by dissolving 100 g of Ca(No3)2 and 450 mL of solution
Answer:
1.35 M
Explanation:
grams/molar mass=ans./volume(L)
100/164=ans./.450
what is the drag force acting on a car with a resultant force of 600N when the engine is pushing it with a force of 11,000N
Answer:
10 400 N
Explanation:
A drag force is an oppositional or limiting force which must be overcome before an object must move wit a force. The lesser the drag force, the higher the probability that an object would move easily.
From the question give, the resultant force of the was is 600 N and force from the engine - 11 000 N.
Drag force = 11 000 - 600
= 10 400 N
The drag force on the car is 10 400 N.
This shows that the car would not move since the drag force (10 400 N) is far greater than the resultant force(600 N).
how many molecules are there in 125 grams of sugar, C12H22O11
Answer:
125
Explanation:
A molecule of sucrose (C12H22O11) has 12 carbon atoms, 22 hydrogen
my Chemistry questions
How can you burn an apple, blueberry, rose and pumpkin without leaving any ashes but retaining the smell of it?
Answer:
candles
Explanation:
if u burn these fruits, it is obvious that there will be ashes but the key hint here is
" retaining the smell"
and what are things that smell and can be fruit scented?
a..... CANDLE
hope this helped :D
Answer:
BY BURNING A CANDLE WITH ITS SCENT
Explanation:
How much heat is required to vaporize 166g of water at it's boiling point, if water's heat of vaporization is equal to 40.7kJ/mol?
___________________________kJ
Answer:
375.3KJ
Explanation:
The following data were obtained from the question:
Mass of water = 166g
Heat of Vaporisation (ΔHv) = 40.7kJ/mol
Heat (Q) =..?
Next, we shall determine the number of mole in 166g of water. This is illustrated below:
Mass of H2O = 166g
Molar mass of H2O = (2x1) + 16 = 18g/mol
Number of mole = Mass/Molar Mass
Number of mole of H2O = 166/18
Number of mole of H2O = 9.22 moles.
Now, we can obtain the heat required to vaporise the water as shown below:
Q = n·ΔHv
Q = 9.22 mol x 40.7kJ/mol
Q = 375.3KJ
Therefore, the heat required to vaporise the water is 375.3KJ.
The box is at rest on the table.what force is represented by A?
Answer: There is no force if it is at rest
Explanation:
If you want to make more shells (CaCO3) then which direction should the reaction proceed?
Answer:
The reaction will proceed in the reverse direction
Explanation:
Now consider the equation;
CaCO3(s) ⇄CO2(g) + CaO(s)
This is a reversible reaction. The reaction could proceed in either the forward or the reverse reaction depending on the conditions of the reaction. Under certain conditions, the forward reaction is favoured, under certain conditions, the reverse reaction is favoured.
The direction in which the reaction proceeds depends on the desired products as the equilibrium position could be manipulated at will by altering the reaction conditions. If the desire is to produce more CaCO3, then the equilibrium position is manipulated so that it shifts towards the left hand side. This implies that the reverse reaction is favoured.
Test
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01:48:02
1
About how long does it take Earth to complete one revolution around the Sun?
1 year
14 days
24 hours
27.3 days
Next
Submit
Save and Exit
Mark this and retum
rotodo
o
Answer:
A) one year
Explanation:
One complete revolution takes 365.25 days, or one year.
Answer:
1 year
Explanation:
Which symbol in a chemical equation separates the reactants from the products ?
Answer:
Explanation:
The arrow symbol in a chemical equation separates the reactants from products. A chemical reaction is process in which chemical changes leads to the formation of products from reactants.
Answer: b
Explanation: its b
200 L of a gas at 10 atm pressure and 400 K is cooled to 100 K and reduced to 2 atm pressure. What is the new volume?
Answer:
250L
Explanation:
Data;
V1 = 200L
P1 = 10atm
T1 = 400K
T2 = 100K
P2 = 2atm
V2 = ?
To solve this question, we'll have to use the combined gas equation which is a combination of Boyle's law, Charles law and pressure law.
From combined gas equation,
(P1 × V1) / T1 = (P2 × V2) / T2
P1 × V1 × T2 = P2 × V2 × T1
Solve for V2,
V2 = (P1 × V1 × T2) / P2 × T1
V2 = (10 × 200 × 100) / (2 × 400)
V2 = 200,000 / 800
V2 = 250L
The final volume of the gas is 250L
Use the drop-down menus to complete the statement and describe how energy relates to work.
transfers
between objects.
Answer: the first one is work and the second one is energy
Explanation:
Answer:
first :work second:energy
Explanation:
Organic chemistry!!! Plz help
Answer:
3) 2,2-dichloroheptane
Explanation:
2,2-dichloroheptane
which acids caused the effects seen on the teeth in the study
Answer:
Hcl
Explanation:Idfk :))Bună ziua. La pagina 169 aveți o altă piesă de teatru. Vă rog să o citiți și să răspundeți la întrebările 1,2,4,7,8/ pag. 170.
Sper că vă scrieți toate lecțiile în caiet! Sunt copii care încă nu mi-au trimis nicio temă. Vă rog să vă mobilizați! Când ne întâlnim vă verific caietele. Mult spor!
phosphoric and citric acids
Answer:
Explanation:
How do geological processes affect where we find rock and mineral resources (natural resources)?
Answer:
Geological processes can change over time. Water erosion can move sand and dirt and anything. Minerals are everywhere, but they can be buried or washed away by all the geological processes that happen every day.
Explanation:
A 1.8−mL volume of seawater contains about 4.0 × 10^−10 g of gold. The total volume of ocean water is about 1.5 × 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.96 per gram answer is in scientific notation
Answer: $6.653×10^15
Explanation:
Volume of sea water sample = 1.8mL
Mass of gold in sample = 4.0 × 10^-10 g
Total volume of ocean water = 1.5 × 10^21 L
Converting volume of seawater sample into liters :
1.8mL = (1.8/1000)L = 0.0018L = 1.8×10^-3
If volume of gold in ;
1.8×10^-3L = 4 × 10^-10 g
1.5×10^21 L = X
(1.8×10^-3L)X = [(1.5×10^21) × (4×10^-10) ]
X = [1.5×4(10^21-10)] / 1.8×10^-3
X = 6.0(10^11) / 1.8×10^-3
X = 3.333×(10^11+3)
X = 3.333 × 10^14
Cost of world's gold equals
(3.333 × 10^14) × $19.96
$66.53 × 10^14