15g of CO2 will be produced from 15g of O2 as 2 moles of O2 produces 2 moles of CO2
What is moles ?
In chemistry, a mole, sometimes spelled mol, is a common scientific measurement unit for significant amounts of very small objects like atoms, molecules, or other predetermined particles.
The mole designates 6.02214076 1023 units, which is a very large number. For the International System of Units (SI), the mole is defined as this number as of May 20, 2019, according the General Conference on Weights and Measures. The number of atoms discovered through experimentation to be present in 12 grams of carbon-12 was originally used to define the mole.
C2H4O2 + 2 O2 --> 2 CO2 + 2 H2O
2 unit of O2 produces 2 unit of CO2
15g of O2 produces 15g of CO2
15g of CO2 will be produced from 15g of O2 as 2 moles of O2 produces 2 moles of CO2
To know about moles from the link
https://brainly.com/question/15356425
#SPJ1
What mass of each reactant would be needed to produce 100.0 kg of methanol in CO + H2 = CH3OH
87420 g CO and 12580 g H2 mass would be needed to produce 100.0 kg of methanol in CO + H2 = CH3OH.
The atomic mass of an element refers to the mass of the constituents that make up its atom. A multiple of 1.992646547 1023 gram, or more specifically, 1.992646547 gram, is used to denote one-twelfth of the mass of the carbon-12 atom, which has an ascribed atomic mass of 12 units. On this scale, one atomic mass unit is equal to 1.660539040 1024 grammes (amu). In honour of English physicist John Dalton, the atomic mass unit is occasionally called the dalton (Da).
To know more about mass visit : brainly.com/question/5661976
#SPJ1
How many atoms are there in 65.0 grams of methane, CH4?
Methane (CH4) is a hydrocarbon that is mostly found in natural gas and has a molecular weight of 4.051747moles per 65.0 grams.
What effects has methane on people?Methane concentrations above a certain threshold can affect how much oxygen is breathed in. This can include headaches, face flushing, memory loss, vision issues, slurred speech, mood swings, nausea, and vomiting. Serious cases could result in altered breathing and heart rate, balance issues, numbness, and coma.
Why is methane bad? What is it?The gas methane (CH4) is colorless, odorless, and very combustible. Carbon and hydrogen are its main ingredients. According to us Environmental Protection Agency, it is also a powerful greenhouse gas, meaning means it influences climate change by causing more warming.
To know more about methane visit;
https://brainly.com/question/2127750
#SPJ13
4. A solid is 5 cm tall, 3 cm wide and 2 cm thick. It has a mass of 129 g. What is its density?
What organisms consume other living things for food 
Answer:
Heterotrophs
Explanation:
Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are examples of heterotrophs. Heterotrophs occupy the second and third levels of the food chain, the chains of organisms that provide energy and nutrients to other organisms.
2. Balance these chemical equations.
(a) SO₂ + O₂SO3
(b) NH3 + O₂N₂ + H₂O
(c) C4H10+ O₂ CO₂ + H₂O
(d) Pb(NO3)2 →PbO + NO₂ + O₂
(e) Al + Fe3O4 →→→ Al₂O3 + Fe
(f) Sr + H₂O-Sr(OH)₂ + H₂
The balanced chemical equation is [tex]\rm 2SO_2 + O_2 \rightarrow 2SO_3[/tex].
What is balanced chemical equation?Balanced chemical equation is defined as a formula where both the reactants and the products have the same amount of atoms of each kind. The law of conservation of mass stipulates that mass cannot be generated or destroyed, hence a chemical equation must always be in balance.
The balanced chemical equation are
[tex]\rm 4NH_3 + 3O_2 \rightarrow 2N_2 + 6H_2O[/tex]
[tex]\rm C_4H_1_0+ 5O_2 \rightarrow 4CO_2 + 5H_2O[/tex]
[tex]\rm 2Pb(NO_3)_2 \rightarrow 2PbO + 4NO_2 + O_2[/tex]
[tex]\rm 8Al + 3Fe_3O_4 \rightarrow 4Al_2O_3 + 9Fe[/tex]
[tex]\rm Sr + 2H_2O \rightarrow Sr(OH)_2 + H_2[/tex]
Thus, balancing the chemical equation is very important as per the law.
To learn more about balanced chemical equation, refer to the link below:
https://brainly.com/question/28294176
#SPJ1
If an atom has 5 valance electrons, it will need to
gain 3
gain 8
gain 0
lose 4
electron(s) in order to become stable?
Answer: gain 3
Explanation:
elements want to have a total of 8 valence electrons to become stable like the noble gases! Hope this Helps.
gravity sample work connection’s academy
PLEASE HELP AS SOON AS POSSIBLE WILL MARK BRAINIEST
Answer:
search on YT Khan academy work done by gravity
Explanation:
you will get it for sure with best explanation
mark me please on brainlest
Which of the following is an example of an unbalanced force?
A A computer on a table
B A man leaning against a wall
C A girl serving a volleyball
D Fruit in a bowl
Explanation:
C
as the girl applies a resultant force on the volleyball causing it to accelerate, there's an unbalanced force acting on the ball.
Which substance (Na, Mg, or Ca) do you identify with and why?
The metals known as Alkaline Earth metals are Na, Mg, or Ca. They are known as "alkaline" earth metals because when they interact with water, they produce "alkaline" hydroxides solutions.
How many metals made of alkaline earth exist?Any of the six chemical elements that make up Group 2 (II a) of the periodic table is an alkaline-earth metal. Beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium are the constituent elements (Ra).
What other names do alkaline earth metals go by?The alkaline earth oxides, formerly known as beryllia, magnesia, lime, strontium, and baryta, are what give the alkaline earth metals their name. These oxides turn basic when combined with water (alkaline).
To know more about Alkaline Earth metals visit:-
https://brainly.com/question/12835232
#SPJ1
Which of the following is a true statement about cellular respiration? (4 points) a Cellular respiration occurs only in plant cells. b Cellular respiration occurs only in animal cells. c Cellular respiration occurs in both plant and animal cells. d Cellular respiration occurs in some plant cells and some animal cells.
Answer:
cellular respiration occurs both in plant and animal cells.
Explanation:
Cellular respiration definitely occurs in animals, it is how we break down glucose to get ATP. Plants first use photosynthesis to produce glucose and then need a way to produce ATP, being cellular respiration.
PLEASE HELP
Can someone explain the step?
Calculate the mass (in grams) needed to prepare 0.505 liters of a 0.314 M CH,;O, solution.
You do not need to enter a unit with your answer.
The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, the mass of CH[tex]_2[/tex]O is 4.80g.
What is molarity?Molarity can be calculated by dividing number of moles of solute by volume of solution in liter. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.
Mathematically,
Molarity= number of moles of solute÷ Volume of solution in liter
number of moles of solute =given mass÷ Molar mass of solute
number of moles of solute =mass÷30.03 g/mol
Molarity=0.314 M
Volume of solution=0.505 liters
Substituting all the given values, we get
0.314 M= {mass÷30.03 g/mol}÷ 0.505 liters
mass÷30.03 g/mol=0.15
mass =4.80g
Therefore, the mass of CH[tex]_2[/tex]O is 4.80g.
Learn more about Molarity, here:
https://brainly.com/question/16727614
#SPJ1
How is the water cycle affected when the sun comes out?
A. Rain Freezes
B. Rain becomes sweet
C. Nothing Happens
D. Rain evaporates
Answer:
option d rain evoporates
Answer:
D. Rain Evaporates
Explanation:
Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds. Clouds move over the globe and drop rain and snow.
How much heat is released when an acetylene (C2H2) torch burns 250 grams of fuel? (ΔH of combustion for acetylene = -1300 kJ/mol)
Select one:
135 kJ
32500 kJ
12500kJ
5.2 kJ
12500 joule heat is released when an acetylene (C2H2) torch burns 250 grams of fuel
q=ΔnH
H acetylene = -1300 kJ/mo
n=given mass/molar mass
given mass= 250 g
molar mass=26
n= 250/26
n=9.61
q=ΔnH
q=9.61× -1300 kJ/mo
q=-12500 joule
In thermodynamics, heat has a very specific definition that is different from how we generally use the word. When two systems with various surface temperatures come into touch with one another, heat is the thermal energy that is transferred. The letters q or Q stand for heat, which is measured in joules.
Heat is sometimes referred to as a process quantity since it is defined in the context of a process through which energy can be conveyed. We may talk about the heat that a hot cup of coffee imparts to your hand, but we don't talk about the heat that a cup of coffee itself holds. Heat is yet another noteworthy quality.
To know more about Heat visit :brainly.com/question/13860901
#SPJ1
A pitcher throws a baseball with a speed of 90 mi/s. Then the batter hits the ball at 110 mi/s in 2 seconds. What is the acceleration of the ball?
Answer:20 mi/s
Explanation:
2 H + 3 H -----> 2 He + 1 n
1 1 4 0
Explain in 1-2 sentences: Is the above equation an example of fission or fusion? How do you know? Give at least 2 reasons why.
The given reaction is an example of nuclear fusion.
This is because two lighter hydrogen atoms fuse to give a heavier helium atom. There is also an increase in the atomic number of the product.
What are nuclear fission and nuclear fusion reactions?Nuclear fission reactions are reactions in which the nucleus of large atoms are split into nucleus of two or more smaller atoms.
For example, uranium atoms split into krypton and barium.
Nuclear fusion reactions involve the nucleus of two or more smaller atoms combining to give an atom of a larger nucleus.
For example, hydrogen atoms fuse to give a helium atom.
Learn more about nuclear fusion and fission at: https://brainly.com/question/14019172
#SPJ1
How many moles are there in 215 grams of water?
Answer:
13.89
Explanation:
13.89 moles (mole =mass)
(photosynthesis)
carbon dioxide water glucose/sugar oxygen
6CO2 + 6H2O + heat
–––––––→ C6H12O6 + 6O2
←––––––––
(respiration)
Number of Number of
Elements: C___ Elements: C___
O___ O___
H___ H___
Analyze and Interpret Data
1. Reason Quantitatively In the reaction above, some molecules have a number in front of
the formula showing how many molecules it takes for the reaction to occur. Tally the
number of elements on each side of the reaction and record the values above.
2. Describe Patterns Describe how the number of elements compare on each side of the
The reaction the reversible reaction is given as :
6CO₂ + 6H₂O + Heat ⇄ C₆H₁₂O₆ + 6O₂
The photosynthesis is to convert carbon dioxide and water and light in into glucose and oxygen.
photosynthesis :
6CO₂ + 6H₂O + Heat ------> C₆H₁₂O₆ + 6O₂
In cellular respiration organism release energy stored in the chemical bond of glucose.
C₆H₁₂O₆ + 6O₂ -----> 6CO₂ + 6H₂O + Heat
The reversible reaction can be as follows :
6CO₂ + 6H₂O + Heat ⇄ C₆H₁₂O₆ + 6O₂
reactants products
C 6 6
H 12 12
O 18 18
The number of atoms present in reactant side is equal to the number of atom in product side. the equation is balanced.
6 moles of carbon dioxide produce 1 mole of oxygen
6 mole of water produce 1 mole of carbon dioxide
Thus, the reversible reaction given as:
6CO₂ + 6H₂O + Heat ⇄ C₆H₁₂O₆ + 6O₂
To learn more about photosynthesis here
https://brainly.com/question/1388366
#SPJ1
If 5 g of Al (26.98g/mol) reacts with 9 g of O2 (32 g/mol), how many grams of Al2O3 (101.56 g/mol) can be formed/
Based on the mole ratio of the reaction, the mass of aluminum oxide that is produced from the reaction between 5 g of aluminum and 9g of oxygen is 9.39 g.
What mass of aluminum oxide can be formed from the reaction between aluminum and oxygen?The mass of aluminum oxide that can be formed from the reaction between aluminum and oxygen is determined from the limiting reactant and the mole ratio of the reaction.
The mole ratio of the reaction is as given in the equation of the reaction below:
2 Al (s) + 3 O₂ (g) ----> Al₂O₃ (s)
The mole ratio of Al to O = 2 : 3
Moles of Al present = 5/27
Moles of Al present = 0.185 moles
Moles of O present = 9/32
Moles of Al present = 0.281 moles
Al is the limiting reactant
Mole ratio of Al to Al₂O₃ = 2 : 1
Mass of Al₂O₃ produced = 0.185/2 * 101.56
Mass of Al₂O₃ produced = 9.39 g
Learn more about limiting reactants at: https://brainly.com/question/26905271
#SPJ1
A student claims that if the downward movement of an electron in a hydrogen atom from n = 6 to n = 2 emits a photon with a wavelength of 410 nm then the electron must absorb a photon with a wavelength of 410 nm to move from n = 2 to n = 6. Is the student correct? Justify your answer.
Since energy can neither be created nor destroyed, it follows that the wavelength that was absorbed by the electron is also emitted.
What is the Bohr model?We know that the Bohr model posses the idea that an electron could move from a lower to higher energy level by the absorption of a photon of light. Thus we know that, when we supply energy to the electron, it is that energy that leads to the electronic transition.
It is clear that the energy that the electron has taken in when it moves up is the same as the energy that it would give out when it comes down in accordance with the law of conservation of energy.
Learn more about Bohr model:https://brainly.com/question/3964366
#SPJ1
The Mackenzie River in northern Canada contains, on average,
0.820 mM Ca2+
0.430 mM Mg2+
0.300 mM Na+
0.0200 mM K+
0.250 mM Cl–
0.380 mM SO42–
and
1.82 mM HCO3–.
What, on average, is the total mass of these ions in 4.75 L of Mackenzie River water?
On average, the total mass of ions in 4.75 liters of Mackenzie River water is 0.466 g grams.
What is the total mass of ions?The formula mass of an ionic compound is determined in the same manner as the formula mass of a covalent compound is determined: by adding the average atomic masses of all the atoms in the compound's formula.
Hence, the total mass is computed as follows:
(0.820 mM Ca 2⁺) X ( 2.25 L) = 1.845 mmoles at 40.0 g/mol = 73.8 mg
(0.430 mM Mg 2⁺) X ( 2.25 L) = 0.9675 mmoles at 24.3 g/mol = 23.51 mg
(0.300 mM Na⁺) X ( 2.25 L) = 0.675 mmol at 23.0 g/mol = 15.52 mg
(0.0200 mM K⁺) X ( 2.25 L) = 0.045 mmol at 39.1 = 1.75 mg
(0.250 mM Cl-) X ( 2.25 L) = 0.5625 mmol at 35.45 g/mol = 19.94 mg
(0.380 mM SO₄²-) X ( 2.25 L) = 0.855 mmol at 96.06 g/mol = 82.13 mg
(1.82 mM HCO₃ -) X ( 2.25 L) = 4.095 mmol at 61.02 g/mol = 249.87 mg
Thus, total mass = 73.8 + 23.51 + 15.52 + 1.75 + 19.94 + 82.13 + 249.87
= 466.52mg
Converted into grams we have:
466.52/1000
= 0.46652
Hence, on average, the total mass of these ions 4.75 L [tex]\approx[/tex] 0.47 grams.
Learn more about Total Mass:
https://brainly.com/question/17552181
#SPJ1
9. It says its wrong? someone help!
The balanced net ionic equation for the reaction between potassium sulfide and lead(II) nitrate is Pb²⁺(aq) + S²⁻(aq) → PbS(s)
Writing balanced net ionic equation for a reactionFrom the question, we are to write the balanced net ionic equation for the given chemical reaction.
The given chemical reaction is
K₂S(aq) + Pb(NO₃)₂(aq) →
The between potassium sulfide and lead(II) nitrate will produce potassium nitrate and lead sulfide.
That is,
K₂S(aq) + Pb(NO₃)₂(aq) → KNO₃(aq) + PbS(s)
Now, balance the equation
K₂S(aq) + Pb(NO₃)₂(aq) → 2KNO₃(aq) + PbS(s)
Write the complete ionic equation
2K⁺(aq) + S²⁻(aq) + Pb²⁺(aq) + 2NO₃⁻(aq) → 2K⁺(aq) + 2NO₃⁻(aq) + PbS(s)
Cancel out the spectator ions
S²⁻(aq) + Pb²⁺(aq) → + PbS(s)
Hence, the balanced net ionic equation is
Pb²⁺(aq) + S²⁻(aq) → PbS(s)
Learn more on Writing balanced net ionic equation here: https://brainly.com/question/28837770
#SPJ1
Choose the list that shows the temperatures in order from warmest to coldest.
A) 11°F, 12°F, -11°F, -12°F
B) 12°F, 11°F, -12°F, -11°F
C) 12°F, 11°F, -11°F, -12°F
D) 12°F, -12°F, 11°F, -11°F
Answer: The answer would be C i think
Explanation:
a sample of an unknown gas has a volume of 8.00L at 1.00 atm and 25.0°C. How many moles of gas are present
Answer:
0.3269
Explanation:
You would use the ideal gas law along with the equation Pv=nrt when P is pressure, v is volume, n is the moles of gas you are solving for, r is a constant that is , and t is temperature,
So you are given pressure, volume, and temperature, so you would begin by plugging in your known values:
P = 1atm
V = 8.00 L
T = 298 K ( but you usually want to use Kelvin so you would add 273.15; this is because 0 C is 273.15 K and 25+273=298)
(1)(8)=n(0.0821)(298)
then
8=n(24.4658)
next isolate n by dividing 24.4658 on each side
8/24.4658 = n (24.4658/24.4658)
0.3269=n(1) or n
What is the electron configuration for an electrically neutral atom of oxygen?
Use the periodic table.
Responses
1s22s2
1 s 2 2 s 2
1s22s22p4
1 s squared 2 s squared 2 p to the power of 4
1s22s22p44d2
1 s squared 2 s squared 2 p to the power of 4 4 d squared
1s22s22p6
Answer:
1s2 2s2 2p4
Explanation:
How many liters of water are produced from the combustion of 2.5 moles of methane gas?
Answer:
this is your answer 1234
Question: Early one October, you go to a pumpkin patch to select your Halloween pumpkin. You lift the 3.2 kg pumpkin to a height of 1.4 m , then carry it 50.0 m (on level ground) to the check-out stand.
Part A: Calculate the work you do on the pumpkin as you lift it from the ground.
Express your answer using two significant figures. W = ? J
Part B: How much work do you do on the pumpkin as you carry it from the field?
Express your answer using two significant figures. W = ? J
A) The work you do on the pumpkin is 31.36 J as you lift it from the ground.
B) The work is zero as you carry it from the field.
What is work?Work can be defined as the energy spent when applying a force to move an object through a certain displacement.
The work by a force to move an object through a displacement (d) can be written as:
W = Fdcosθ
Where θ is angle between force and displacement.
(a) The mass, the displacement of the pumpkin from the ground, and the angle are:
m = 3.2 kg
d = 1.4 m
θ = 0∘
Here, the force exerted during lifting the pumpkin is equal to the weight of the pumpkin:
F = mg = (3.2)(9.8) = 31.36 N
Thus, the work done when lifting the pumpkin is
W = F d cosθ = (31.36 N)(1.4m)cos(0∘) = 44 J
(b) When carrying the pumpkin, the force exerted will be upward while the displacement of the pumpkin will always be directed forward. Therefore, they are perpendicular (i.e. θ = 90∘) to each other which is the reason why the work is zero.
Learn more about work, here:
https://brainly.com/question/13662169
#SPJ1
Indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium after changing the concentration of the reactant or product. An up arrow indicates an increase in concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in the concentration. after the concentration of Br₂ is decreased after the concentration of HBr is increased H₂(g) + Br₂(g) O 0 □ ↓ Answer Bank ↑ 2HBr(g) 0 □
The concentration of species in the reaction changes the reaction in the following ways: decrease carbon dioxide = forward direction of reaction.
The direction of the reaction can be assessed by the following. On increasing the concentration of the reactant the reaction processes in the forward direction. On increasing the concentration of product the reaction processes in the backward direction.
The given equilibrium is:
2CO(g) + O2(g) ↔ 2CO2(g)
increase CO = forward direction of reaction
increase oxygen = forward direction of reaction
decrease CO = no change in equilibrium as reaction not processes.
decrease oxygen = no change in equilibrium as reaction not processes.
increase carbon dioxide= reverse direction
decrease carbon dioxide = forward direction of reaction.
For more information about the direction of reaction, refer to the link: brainly.com/question/2400156
#SPJ9
I need help on this question please. This is not graded. Thank you.
What volume of does 1.24grams of flourine gas occupy under conditions of 5.20 celcius and 2.04atm?
Volume the fluorine gas occupies = 0.73L
What is volume of a gas ?
The gas's volume:
The area occupied by gaseous particles under normal temperature and pressure circumstances is referred to as the volume of gas.
It is identified as a "V."
The letter "L" stands for "liters," the SI unit of volume.
At normal temperature, a mole of gas has a volume of 24 m3, or 24 000 cm3.
The molar volume of a gas is the name given to this quantity.
The gas equation
PV = n R T
P = pressure = 2.04 atm
T = temperature = 5.20 Celsius = 278.20K
V = volume
n = no of moles = 1.24/19 = 0.065moles
R = gas constant = 0.0821lit atm /K
V = 0.065*0.082*278.20/ 2.04 = 0.73L
Volume the fluorine gas occupies = 0.73L
To know about volume from the link
https://brainly.com/question/27100414
#SPJ1
What is unique about the orbitals around the nucleus of an atom?
Responses
Each orbital has its own set of neutrons.
Each orbital has its own set of neutrons.
Each orbital has electrons of a specific energy level.
Each orbital has electrons of a specific energy level.
Each orbital contain protons.
Each orbital contain protons.
Each orbital has only one electron.
The unique property of the orbitals around the nucleus of an atom is that each orbital has electrons of a specific energy level; option B.
What are orbitals in an atom?Orbitals in an atom are regions of space around which electrons are found in an atom.
The orbitals in an atom are also described as energy levels.
Electrons are arranged in atomic orbitals from orbitals having the lowest energy to orbitals having the greatest energy.
The outermost orbital of an atom is known as the valence orbital and electrons found there are known as valence electrons.
Learn more about orbitals at: https://brainly.com/question/14361631
#SPJ1
