Answers
Answer: The balanced chemical equation is given by,
[tex]2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O[/tex]
Explanation:
[tex]C_2H_6+O_2\rightarrow CO_2+H_2O[/tex]
Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.
This also means that total mass on the reactant side must be equal to the total mass on the product side.
So, the balanced chemical equation is given by, will writing stoichiometric coefficient 2 in front of ethane , 7 in front of oxygen , 4 in front of carbon dioxide gas and 6 in front of water.
[tex]2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O[/tex]
According to reaction, 2 moles of ethane reacts with 7 moles of oxygen to give 4 moles f carbon dioxide gas and 6 moles of water.
Related Questions
what statement best descrubes sulfuric acid (H2SO4).
A. sulfuric acid is a compound.
B. sulfuric acid is a mixture.
C. sulfuric acid is an element.
D. sulfuric acid is a suspension.
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The Doppler effect is used in:
Producing energy and predicting floods
Locating missing cell phones and growing plants
Identifying areas of rain and identifying speeding cars
Curing some illnesses and observing subatomic particles
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what phenomenon is responsible for moving sedimentary and metamorphic rock into.the Earth's interior?
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During the rock cycle, the sedimentary rocks return again to the interior earth and become metamorphic rocks by metamorphism, and then the metamorphic rock goes deeper and melt into magma by high temperature.
The plate tectonics movements and the changing in its rate we affect the production and destruction of the sedimentary, metamorphic and igneous rocks.
For example, the metamorphic rocks formed at a position of a compression at convergent plate boundaries, So by increasing the rate of plate tectonic movements the rate of formation of the metamorphic rocks will be increased also.
and sedimentary rocks which meanly moves by weathering and erosion also the plate tectonic affect its movement .as the plate tectonics affect Uplift of the crust areas because the uplift of the crust will occur as a result of the plate tectonics movements.
Plate tectonics is responsible for moving sedimentary and metamorphic rock into the Earth's interior through processes like subduction.
Explanation:The phenomenon responsible for moving sedimentary and metamorphic rock into the Earth's interior is plate tectonics. Plate tectonics is the theory that explains how slow motions within the mantle of the Earth move large segments of the crust, resulting in the drifting of continents and the formation of mountains and other geological features. The movement of crustal plates in plate tectonics can cause subduction, which is the process where one tectonic plate is forced beneath another.
This can lead to the burial of sedimentary and metamorphic rocks deep into the Earth's interior. For example, when an oceanic plate subducts beneath a continental plate, sedimentary rocks that were once on the ocean floor can be carried into the mantle. Similarly, when two continental plates collide, the pressure and heat generated can transform sedimentary and metamorphic rocks into deeper layers of the Earth.
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what is the part of a solution that dissolves called
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Terrlel uses a microscope to look t slides of plant cells. he sees a cell with two nuclei that have visible chromosomes. which stage of cell division is this cell?
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How many moles of propane (C3H8) are in a 7.00-L tank at 20.0°C and 5.45 atm of pressure?
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Temperature in kelvin :
20.0ºC + 273 => 293 K
R = 0.082
Volume =7.00 L
Pressure = 5.45 atm
Number of moles = ??
Therefe:
P * V = n * R * T
5.45 * 7.00 = n * 0.082 * 293
38.15 = n * 24,026
n = 38.15 / 24.026
n = 1.587 moles of propane ( C3H8 )
hope this helps!
the amount of propane in the tank at the given temperature and pressure is 1.59moles.
Given the data in the question;
Volume of tank; [tex]V = 7.00L[/tex]Temperature; [tex]T = 20.0^oC = 293.15K[/tex]Pressure; [tex]P = 5.45atm[/tex]Amount of propane; [tex]n = \ ?[/tex]Ideal Gas LawThe Ideal gas law states "that pressure multiplied by volume is equal to moles multiply by the universal gas constant multiply by temperature. 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] ).
The determine the amount of propane in the tank, we substitute our given values into the equation above.
[tex]PV = nRT\\\\5.45atm * 7.00L = n * 0.08206Latm/molK * 293.15K\\\\38.15Latm = n * 24.055889Latm/mol\\\\n = \frac{38.15Latm}{24.055889Latm/mol}\\ \\n = 1.59moles[/tex]
Therefore, the amount of propane in the tank at the given temperature and pressure is 1.59moles.
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How is light energy different from both sound and heat energy? A. Light energy can exist independently of matter. B. Light is more energetic when its frequency is higher. C. Sound energy is a wave. D. Heat energy can radiate from an object.
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light energy can exist independently of matter
Answer:The correct answer is option A.
Explanation:
Light energy is an electromagnetic wave which is an example of longitudinal wave which can travel in vacuum easily .Which means light energy can exist independently of matter.
Where as sound energy and heat energy do not exist independently of matter.Both sound energy and heat energy related to the matter.
Hence the correct answer is option A.
musiclover10045 HELPPPPPPPPPPPPPPP
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2. False, a precipitate is a solid not a gas
3. a burning candle
Answer:
1 ) A change in color of substance
2) The given statement is false.
3) A burning of candle is a chemical change.
Explanation:
A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.
Example : Melting of ice
Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.
Example: Corrosion of iron called as rusting.
Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.
Precipitate is solid substance formed from the mixing of two different solutions.
If I add 475mL of water to 75.0mL of a 0.315M NaOH solution, what will the molarity of the diluted solution be?
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V(NaOH) = 75 mL ÷ 1000 mL/L = 0,075 L.
c(NaOH) = 0,315 M = 0,315 mol/L.
n(NaOH) = c(NaOH) · V(NaOH).
n(NaOH) = 0,075 L · 0,315 mol/L.
n(NaOH) = 0,023625 mol.
V(solution) = 0,475 L + 0,75 L.
c(solution) = 0,023625 mol ÷ 0,550 L.
c(solution) = 0,043 mol/L.
Table salt is the compound sodium chloride (NaCl). Use the periodic table to find the molar mass of NaCl
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atomic mass:
Na = 22.98 a.m.u
Cl = 35.45 a.m.u
Therefore:
NaCl = 22.98 * 1 + 35.45 * 1
NaCl = 22.98 + 35.45
NaCl = 58.43 g/mol
hope this helps!
the answer to this question is 58.44
Gina lost her phone and has to get a new number. However, whenever she tries to give out her new number to friends, she gets mixed up because her old number keeps coming to mind. What memory phenomena
is Gina experiencing
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How does gravity affect Earth and other objects found in the solar system? choose all that apply
Moons' orbits around planets
Planets' order (from Sun)
Annual amounts of snow on Earth
Pushing and pulling of tides on Earth
Colors of living things
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Moons' orbits around planets
Planets' order (from Sun)
Pushing and pulling of tides on Earth
Gravity pulls things together in the solar system. The reason why moons orbit around planets and planets orbit the sun is because of the pull of gravity. Planets try to pull the sun towards them but because of the strong gravity of the sun, they end up orbiting around it. The same goes with the moons and the planets.
The order of the planet is also due to the gravity of the sun and the planet themselves. The pull of gravity depends on the mass of an object and the distance between the two objects. Even if Jupiter is far, because of its mass, it is still able to pull on the sun and vice versa.
As for the tides, they are a result of the combined gravity of the sun and the moon. When the sun and the moon are aligned, their combined gravity is able to pull oceans upwards. This causes high tides.
What effect does an ocean have on the climate
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Which of the following use of chemicals is correct? URGENT QUESTION
A. Window cleaner is used to clean a food contact surface
B. Chemicals are used at double the recommended strength for dificult to clean items.
C. Concentrated degreaser is stored in a chemical storage cabinet.
D. A spray bottle used to water plants is unlabeled.
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The correct use of chemicals from the options provided is that a concentrated degreaser needs to be stored in a chemical storage cabinet. This is to ensure safety and prevent contamination or accidents. The correct option is C.
The correct use of chemicals, particularly in settings where food is handled, is crucial for health and safety. Among the options provided:
Window cleaner is not suitable for use on food contact surfaces due to its chemical composition, which may not be food safe.Using chemicals at double the recommended strength can be dangerous and is not advisable as it may lead to harmful residues or reactions.Concentrated degreaser should indeed be stored in a chemical storage cabinet to prevent accidents and contamination.An unlabeled spray bottle, especially one used to water plants, represents a risk as it may lead to confusion and misuse.Therefore, the correct use of chemicals is represented by option C: Concentrated degreaser is stored in a chemical storage cabinet. This practice ensures that hazardous substances are kept in a safe location and reduces the risk of accidental injury or contamination.
Helpz mez plzz pwzzzzz
Answers
The 2004 Indian Ocean tsunami was caused by a major earthquake that originated below the earthquake epicenter, which is the point on the ocean's surface directly above the earthquake focus. The dashed lines on the map indicate the path of the tsunami's waves.
The correct answer is option C.
On December 26, 2004, a major earthquake occurred in the Indian Ocean, triggering a tsunami that resulted in the loss of thousands of lives. The earthquake originated below the earthquake epicenter, which is the point on the ocean's surface directly above the earthquake focus. The dashed lines on the map indicate the path of the tsunami's waves.
The earthquake epicenter is important because it is the point on the ocean's surface where the tsunami waves are generated. The waves radiate outward from the epicenter in all directions, with the largest waves occurring closest to the epicenter. The waves then travel across the ocean, decreasing in height as they move away from the epicenter.
The 2004 Indian Ocean tsunami was one of the deadliest tsunamis in recorded history, with an estimated 230,000 people killed. The tsunami waves reached heights of up to 30 meters (100 feet) in some areas, and caused widespread damage to coastal communities.
The 2004 tsunami was a reminder of the destructive power of tsunamis. It is important to be aware of the risks associated with tsunamis and to know what to do if a tsunami warning is issued.
Therefore, from the given options the correct one is C.
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all force produces motion
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What is the chemical formula of this organic compound
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Rainwater will enter the ground at x if the ground is a) saturated and permeable
B) saturated and impermeable
C) unsaturated and permeable
D) unsaturated and impermeable
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Final answer:
Rainwater enters the ground effectively when the soil is unsaturated and permeable, allowing the infiltration and percolation process to replenish groundwater sources.
Explanation:
The question 'Rainwater will enter the ground at x if the ground is a) saturated and permeable b) saturated and impermeable c) unsaturated and permeable d) unsaturated and impermeable' pertains to the concepts of groundwater recharge, infiltration, and the nature of soil permeability. Rainwater enters the ground through a process known as infiltration, which is significantly influenced by the soil's saturation level and its permeability. In this context, option C: unsaturated and permeable is the correct answer. This is because unsaturated soil indicates that there is room for more water in the soil's pore space, and permeability means the soil has pathways through which rainwater can move. When soil is unsaturated and permeable, it allows for effective infiltration and percolation of rainwater into deeper layers, eventually replenishing groundwater sources.
what model is used to show the pattern of traits that are passed from one generation to the next in family
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Which kind of diagram shows changes in the three kinds of rocks over time? A. rock cycle B. stratification process C. crystallization rate D. temperature change
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Answer:
A. rock cycle
Explanation:
Rock cycle shows the changes in the three kinds of rocks over time.
The rock cycle refers to the description of the geological processes that rocks go through to become igneous, sedimentary and metamorphic.
The cycle shows the time it takes for the different types of rocks to form and how this change is related to the water cycle and the way the tectonic plates move.
The rock cycle begins with the formation of igneous rock as the first stage.Igneous rocks can form when magma penetrates through cracks in existing rocks or by cooling lava from volcanic eruptions.
The formation of sedimentary rock as a second stage.Sedimentary rocks are formed by the consolidation of sediments that come from erosion.
That is, igneous rocks undergo different processes such as erosion, transport and weathering, which causes the rock to transform into small particles (sediments).
Over time, they are transformed due to the weight of the successive layers deposited and the action of water, forming rocks by a process called lithification.
The formation of metamorphic rock as a third stage.The metamorphic rocks suppose the alteration in solid state of rocks that are already consolidated in the earth's crust.
That is, sedimentary rocks are affected by the movement of the earth's crust related to the movement of tectonic plates and the formation of mountains.
Therefore, we can conclude that rock cycle shows the changes in the three kinds of rocks over time.
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to find the mass of 3.2 moles of calcium for carbonate which of the following is used to calculate the amount
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because to finde mass...u must have grams(g) as units....
it is the only one that have g as units
as for the first answer the avogadros number gives u the number of atoms in one mole of calcium carbonate....
the second one is based on ... At s.t.p one mole of gas occupies 22.4 dm³⇒to find volume
To find the mass of 3.2 moles of calcium for carbonate, the formula that will use is g/MOL of calcium carbonate.
What is calcium carbonate?Calcium carbonate is a carbonic salt of calcium. It is used as antacid, to relief from gastric relief. It relieves in acidic discomfort. It is also used as dietary supplement to cover up the deficiency of calcium.
Thus, the correct option is C, g/MOL of calcium carbonate.
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How does gravity keep the planets in orbit around the sun
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Gravity from the sun is even and makes a planet orbit the sun by exerting a force that pulls the planet towards it. Since the gravity of the sun is always the same (or very, very similar), the planet's orbit stays the same.
Hope this helps!
The number of seats in the first 12 rows of a high school auditorium form an arithmetic sequence the first row has 9 seats the second row has 11 seats.
a) write a recursive formula to represent the sequence
b) write an explicit formula to represent the sequence.
c) how many seats are in the 12th row.
plz help me ASAP it's a math question not chemistry
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S1 = 9
S(n) = S (n-1) +2
b) Explicit formula; is that of an arithmetic progression; such that if a is the first term , and d is the common difference , then the n th term will be given by the formula: a + (n-1) d; where a is 9, and d is 2
Hence; for n th row = 9+ 2(n-1)
c) Number of seats in 12 th row using the formula in b.
n = 12 , a = 9, d = 2
therefore; 9 + 2(12-1)
= 9 + 2(11)
= 31 seats
There are 31 seats in the 12th row.
a) The first question is to obtain the recursive formula so we will have;
S1 = 9
S(n) = S (n-1) +2
b) To obtain the explicit formula of the arithmetic progression
Where;
a= first term
d =common difference
It then follows that the n th term is given by a + (n-1) d
So;
a = 9, and
d= 2
For n th row = 9+ 2(n-1)
c)the number of seats in 12 th row can be obtained by;
9 + 2(12-1)
= 9 + 2(11)
= 31 seats
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What needs to be added to liquid water at the Earth's surface in order to evaporate it into gaseous water
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Answer: Yes heat is correct.
Explanation:
Which of the following correctly orders the layers of the atmosphere from lowest to highest?
A. troposphere, stratosphere, mesosphere, ionosphere
B. ionosphere, stratosphere, mesosphere, troposphere
C. thermosphere, stratosphere, mesosphere, troposphere
D.stratosphere, troposphere, mesosphere, thermosphere
Answers
A) Troposhpere
Stratosphere
Mesosphere
Ionosphere
Hope I helped, tell me if I'm wrong!
How much heat is required to change the temperature of a 15 g aluminum can with 100 g of water from 24.5°C to 55°C?
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While heat capacity of water = 4.186 J/g°C
Heat = heat gained by water + heat gained by aluminium
Heat gained by water = 100 × 4.186 × 30.5
= 12767.3 Joules
Heat gained by aluminium = 15 × 0.9 × 30.5
= 411.75 Joules
Heat required = 13179.05 Joules or 13.179 kJoules
The BEST example of diffraction is the image of
Question 8 options:
a ring around the Sun caused by particles in the air.
a pencil that appears broken in a glass of water.
a fingerprint that appears to be enlarged under a magnifying glass.
your image in a mirror
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what are two physical changes that could occur with a piece of paper?
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Will mark as Brainliest.
For the balanced equation shown below, how many moles of O2 will react with 0.3020 moles of CO2?
2C2 H5 OH + 6O2 → 4CO2 + 6H2O
Question options:
0.151 moles O2
0.201 moles O2
0.302 moles O2
0.453 moles O2
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And is the bending of rock layers due to stress
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Answer:
Fold
Explanation:
A fold is a geological feature that is formed when any sedimentary rock sequence is subjected to compressional stress or tectonic stress. Here, the rocks do not break but permanent deformation occurs in the rock layers. These are important features that help in understanding the geological setting of a particular area.
Due to the continuous motion of plates, the rocks are subjected to folding and faulting, occurring quite frequently at many different places. This bending of rocks occurs within the earth's crust and is an endogenetic process.
Thus, folds are important in geological interpretation of an area.