Answers
Answer:
See below
Explanation:
2C2H6 + 7O2 = 4CO2 + 6H2O
2C2H2 + 5O2 = 4CO2 + 2H2O
A lot of this is trial and error. I start from left to right. For the first reaction, you had
C2H6 + O2 = CO2 + H2O
You have 2 carbons on the left so you can try adding a 2 in front of the carbons on the right and keep going from there. Now you have
C2H6 + O2 = 2CO2 + H2O
You now have 2 C on each side. C2 is the same as 2C.
The next step is to look at the hydrogens on the left. You have 6 so you need 6 on the right. You can add a 3 in front of the H on the right. The H already has a subscript of a 2 so having the 3 in front will now make it 6H. You now have this
C2H6 + O2 = 2CO2 + 3H2O
So your C are equal (2 on each side) and your H is equal (6 on each side). All that is left is the O. So far you have 2 on the left but you have 7 on the right (4 from the 2CO2 and 3 more from 3H2O). Since you have an even number on one side and an odd number on the other, there is no way to make this work. So it's time to start over.
My next step was to put a 2 in front of C2H6 and keep going as we did above. Start with this
2C2H6 + O2 = CO2 + H2O
You have 4 C on the left. So you need to add a 4 in front of CO2 to get 4 C on the right. Now you have this
2C2H6 + O2 = 4CO2 + H2O
Now on the left you have 12 H (2 in front times the 6 subscript on the H). You need to have 12 on the right. We can get that by putting a 6 in front of the H2O ( again the 6 in front times the 2 subscript of the H is 12 total). You have this now
2C2H6 + O2 = 4CO2 + 6H2O
You now have 4 C on both sides, 12 H on both sides. All that is left now is the O.
On the right side, you have a total of 14 ( 8 from the 4CO2 and 6 from 6H2O). So you'd need to add 7 in front of the O2 to make it 14.
You're done. 4 C on both sides, 12 H on both sides and 14 O on both sides.
The second equation I just did the same process.
Related Questions
HELP!! pick the correct answer please. picture attached
Answers
Answer:
A solution, in science, refers to a type of mixture involving two or more substances. Specifically, the solution definition refers to a type of homogeneous mixture - i.e., a mixture that has a uniform composition and its individual components cannot be distinguished
Answer:
C.Concetrated solution
Explanation:
hope it's help.
Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.
2NaClO3 --> 2NaCl +3O2
How many moles of NaCl were produced by 10 moles of NaClO3? Round your answer to the nearest whole number.
Answers
Answer:
10 moles of sodium chloride
Explanation:
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Which new item, if added to the density
column, would settle and stay right in the
green dyed water layer
a. Charcoal = 0.56 g/mL
b. Glass = 1.40 g/mL
c. Paperclip = 1.00 g/mL
d. Thumbtack = 1.9 g/
Answers
Answer:
example:
aExplanation:
bicuse its true colum
Which of the following atoms would be expected to be diamagnetic in the ground state?
O magnesium (Mg)
O potassiun (K)
O chlorine (CI)
O cobalt (Co)
Answers
The atoms that would be expected to be diamagnetic in the ground state is magnesium
The magnetism of an atom refers to its electronic configuration. A diamagnetic atom is an atom whose electrons are all paired.
A paired electron is an electron that occurs in pairs in its orbital shell.
At their respective ground state, the electronic configuration of the given elements are as follows:
The electronic configuration of magnesium is 1s²2s²2p⁶3s². As such its a diamagnetic atom.
The electronic configuration of Potassium is 1s²2s²2p⁶3s²3p⁶4s¹. Hence, Potassium has one unpaired electron in its outermost shell.
The electronic configuration of Chlorine is 1s²2s²2p⁶3s²3p⁵. Hence, Chlorine has one unpaired electron in its outermost shell.
The electronic configuration of Cobalt is 1s²2s²2p⁶3s²3p⁶3d⁷4s². Hence, the unpaired electrons of Cobalt in its outermost shell are three.
Therefore, the atoms that are diamagnetic in the ground state is magnesium.
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Which type of element Is not likely to react chemically with other elements to form a compound?
Answers
Answer:noble gases
Explanation:
what is kinetic enegry
Answers
Kinetic energy → the kinetic energy of an object is the energy that it possesses due to its motion
For an example ↓
an ionic compound, salt is a hard, crystalline substance in which the______and_______ions are lined up in a regular pattern
A. polar, nonpolar
B. red,blue
C. right,left
D. positive, negative
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Answers
Answer:
An ionic compound, salt is a hard, crystalline substance in which the positive and negative ions are lined up in a regular pattern.
Explanation:
If an ionic compound has a 2- charge how does that affect the total number of electrons in a Lewis structure
Answers
In the situation where an ion has a charge of -2, the Lewis structure is affected because it must add two additional electrons.
The Lewis structure is a term to refer to the graphical representation that shows the pairs of electrons in dashes or points of bonds between:
The atoms of a moleculeThe lone electron pairs that may existAdditionally, the charge of an ionic compound is calculated using the difference in electrical charge between the electrons. On the other hand, an ion is formed by adding or removing electrons, so the magnitude of the resulting charge depends on the number of electrons added or removed.
According to the above, if an ionic compound has a -2 charge, the Lewis structure must add two electrons.
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Which of the following species of manganese would have the largest atomic radius?
Answers
Answer:
Largest is Mg as across the period atomic radius decreases
How many ethnic groups are there in China?
Answers
Answer:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
Explanation:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
There’s your answer
describe another medical condition or disease where the primary system causes a serious problem with a secondary system
Answers
Answer:
Congestive heart failure
Explanation:
Congestive heart failure happens when your heart gets too weak to pump blood from the lungs out to the body. Pressure builds up in the heart which puts pressure on the blood vessels of the lungs. This will lead to leakage of the vessels and the fluids build up in the air sacs of the lungs. This condition is called pulmonary edema.
Pulmonary edema occurs when fluid builds up in the lungs making it hard to breathe. It may start out as running out of breath easily but if left untreated (both conditions) symptoms get worse over time.
1.-Una solución de 1600 ml contiene 9,5 gramos de agua oxigenada H2O2 Calcular el porcentaje peso volumen del soluto.
Answers
✞➪name the macromolecules that are chosen as drug targets.♔♔♔
Answers
Answer:
The macromolecules chosen as drug targets are carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
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urgent help! will mark as brainliest
Answers
Answer:
1. Negative
2. positive alpha
3. Gold
4. deflected
5. center
6. positive
7. positive
8. center
Hope this helps :)
Given R = 0.0821L⋅atm/mol⋅k, how many moles of gas are in a 1.25 L container at 300K and 2.07 atm?
A. 9.51 mol
B. 0.105 mol
C. 0.084 mol
D. 0.067 mol
Answers
Explanation:
Its B) 0.105 enjoy youre day
4
Select the correct answer.
Which statement best describes how chemical equations demonstrate conservation of mass?
O A.
The number of reactants is the same as the number of products.
O B.
The compounds are the same on each side of the reaction.
O c.
The number of atoms of each element is the same on each side of the equation.
OD.
The state of matter is the same on each side of the equation.
Answers
Answer:
C. The number of atoms of each element is the same on each side of the equation.
Explanation:
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3. What is the picture displayed? *
1 point
Captionless Image
Answers
Answer:
(not sure what's the question ) Captionless image??
A student makes a diagram that shows the layers of Earth. The student incorrectly claims that the density of each layer is the same. Which of these accurately describes the
layers of Earth?
The density of Earth's layers increases from the center to the surface,
The density of Earth's layers increases as you move down toward the center.
The mantle is less dense than the layer above it but denser than the layer below it.
The outer core is denser than the layer below it but less dense than the layer above it.
Answers
Answer:
B.
Explanation:
An image of Earth's layer is above.
Which layer is the most dense?
layer A
layer B
layer C
layer D
Answers
Answer:
Layer D
Explanation:
Earth's interior layers are ordered by density. The densest layer is the solid metal inner core, the mantle is of intermediate density, and the least dense layer is the lithosphere, particularly the continental lithosphere.
What is the quantum mechanical electron configuration of arsenic?
Answers
Answer:
After the 4s sublevel is filled with two electrons, ten electrons fill the 3d sublevel, which is slightly higher in energy than the 4s sublevel. After the 3d sublevel is filled, the remaining three electrons will be in orbitals in the 4p sublevel. Thus, the electron configuration for arsenic is [Ar] 4s(2 squared) 3d(10 squared) 4p(3 squared).
Hope this
Helps
You
1. What process occurs along divergent plate boundary?
2. What geologic features formed when two plates moved away from each other?
3. Compare rift valley from mid-ocean ridge. Explain your answer. PIVOT 4A CALABARZON 24
Answers
1. Earthquakes and Eruptions (volcanoes)
2. Divergent plate boundary
3. Apart from a widening valley, it equally contributes to steep mountain sides spreading. A mid-oceanic ridge is naturally produced if two oceanic plates naturally start moving away from each other.
Explanation:1. When a divergent boundary occurs beneath oceanic lithosphere, the rising convection current below lifts the lithosphere, producing a mid-ocean ridge. Extensional forces stretch the lithosphere and produce a deep fissure. When the fissure opens, pressure is reduced on the super-heated mantle material below. It responds by melting, and the new magma flows into the fissure. The magma then solidifies and the process repeats itself.
2. When two plate diverge from each other also known as divergent (di-apart, vergere- to inclined) plate margin .
Two plate diverge along oceanic ridges where new lithosphere is created.
Now come to the main point: Geological Features
When two oceanic plate diverge then new sea floor is created by a process called sea floor spreading and features like Mid oceanic ridges, volcanoes & Young lava flows forms. Ex. East Pacific Rise, Mid-Adlantic Ridge.
When two continental plates diverge by continental rifting then features like Rift valley, volcanoes are found. Ex of continent continent -East Africa rift vally, Red sea.
3. The major difference between different types is what type of plate the divergent boundary is between. If the boundary is found between two continental plates you are left with a rift valley. ... If two oceanic plates begin moving away from each other it creates a mid-oceanic ridge.
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A lunar eclipse occurs at night and can only occur during what phase of the moon?
New moon
Full moon
Answers
Answer:Full moon
Hope this helps :)
A lunar eclipse can occur only at full moon.
Explanation:
During a lunar eclipse, Earth comes between the Sun and the Moon, blocking the sunlight falling on the Moon. A total lunar eclipse occurs when the Moon and Sun are on opposite sides of Earth. A partial lunar eclipse happens when only part of Earth's shadow covers the Moon.
Answer:
"Full moon"
A full moon would be needed due to the fact that the sun would need to entirely block it, resulting in a solar eclipse. Hence, the answer is "Full moon".
1. Which of the following is neutrally charged?
c. an electron
b. a compound d. a proton
a. an ion
d. a proton
Answers
Answer:
B. A compound
Explanation:
An ion is defined as a charged particle, so it's not going to be that. Ions can be positively or negatively charged.
Electrons are tiny particles, smaller than an atom, that revolve around the nucleus. They have a negative charge. So they are not neutral either
Protons are also a part of atoms, like electrons are. An atom is neutral overall. This is because protons have a positive charge that balances out the negative charge of electrons.
So, the only answer option we have left is for a compound. So, that's our answer!
Answer:
c. an electron
Explanation:
A neutral charge is the electrochemical occurrence where an atom has an equal number of electrons and protons. Such an atom is neither positively charged nor negatively charged because the protons and electrons balance each other out
taylor drinks 2 liters of water during every concert how many milliliters did she drink during two concerts
Answers
Answer:
Taylor drinks 4 liters of water
Explanation:
2 litters of water per concert
2 concerts is 2x2=4
please help with this!
Answers
Answer:
d) The object falls towards the ground
Explanation:
can anyone send me the structure of iron ?
;
Answers
Answer:
HOPE IT HELPS
Explanation:
PLS MARK BRAINLIEST ^_^
Answer:
Here you go dear..
Here's the structure of iron you were talking about earlier..
(ㆁωㆁ)(◍•ᴗ•◍)
Explanation:
Hope it helps you..
Your welcome in advance..
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What are the sources of petrochemicals
Answers
Answer:
Petrochemicals are chemical products derived from petroleum, although many of the same chemical compounds are also obtained from other fossil fuels such as coal and natural gas or from renewable sources such as corn, sugar cane, and other types of biomass.
Answer:
The sources of petrochemical are: fossil fuel such as coal and natural gases or from renewable sources such corn, sugar, cane and other types of biomass .
Explanation:
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I am giving the brainliest answer too
Explain… What are the subatomic particles of an atom, and where are they located in the atom? Be specific.
Answers
Atomic Particles
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
I hope its helpPolymers are large organic molecules that are made of
a.
cations.
c.
carbon and oxygen only.
b.
anions.
d.
repeating units.
Answers
Answer:
D) Repeating units.
Explanation:
Polymers are large macromolecules which are made up of many repeating structural units called monomers :)
which of the following oxides will react with magnesium most readily when both are heated?
A.zinc oxide
B. copper(2) oxide
C.lead (2) oxide
D. aluminum oxide
Answers
Answer:
None of the above
Explanation:
• This is because all the metal oxides provided are below magnesium in the reactivity series.
[ pic attached ]
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