The number of moles of the excess reagent there would be is 3.9 moles
From the question,
We are to determine the number of moles of the excess reagent there would be.
The given balanced chemical equation is
N₂ + 4H₂O → 2H₂O₂ + N₂H₄
This means,
1 mole of N₂ is required to react completely with 4 moles of H₂O
Now,
If 1 mole of N₂ is required to react completely with 4 moles of H₂O
Then,
2.8 moles of N₂ will react completely with 11.2 moles of H₂O
∴ H₂O is the excess reagent
Number of moles of H₂O that would remain = 15.1 mol - 11.2 mol
Number of moles of H₂O that would remain = 3.9 mol
Hence, the number of moles of the excess reagent there would be is 3.9 moles
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What happens when white light passes through a blue then a yellow filter
Answer quick
Answer:
At the end, no light passes through.
Explanation:
First, when white light enters a blue filter, only blue light is allowed to pass through, and all the other components of light are absorbed. When blue light then reaches the yellow filter, it absorbs the blue light, because it is designed to allow only the yellow component of the light to pass through. White light consists of the seven rainbow colours: red, orange, yellow, green, blue, indigo and violet.
How does a vaccine impact the individuals who receive it?
O They will likely still develop the disease but will not die from i
O They will not be able to get the disease but can still pass it or
O Their bodies will remember the disease and be able to fight it
O They will become sick with the illness but then recover.
Answer fast pls
Answer:
I want to say (A) but i also want to say (C) but i can be wrong. most likely (C)
Explanation:
hope this helps lol and have a great day
Answer:
honestly this is kind of an opinionanated question because some people think that the vaccine dosen't work. Like I think that, but some other people might think differently so im gonna go with answer c.
Explanation:
does SO3 2- show delocalized bonding
Answer:
YES
Explanation:
SO3 2-DOES show delocalized bonding
delocalized bonding occurs when there is a resonance structure and the electronic bonds are a delocalised "cloud" around the species
The resonance effect of the sulfite sructures ithe folowing link:
https://www.chemistryscl.com/general/lewis-resonance-structure-of-SO32-/index.php
Ions can be made by single element or covalently bonded group of elements. The covalently bonded group of elements is called polyatomic ions or polyatomic atoms. Therefore SO₃²⁻ show delocalized bonding.
What is Ions?Any species that contain charge whether it is positive charge or negative charge is called ions. The example of polyatomic ions are sulfate, phosphate, nitrate etc.
Cation is the species that loose electron and attain positive charge while anion is a species which gain electron and attains negative charge so when anion and cation combine in fixed ration the the overall charge of the molecule is zero that is molecule is neutral, the charge over cation and anion is also called oxidation state.
SO₃²⁻ show delocalized bonding as there is a resonance structure and the electronic bonds are a delocalized "cloud" around the species
Therefore SO₃²⁻ show delocalized bonding.
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Your private gas collection consists of the four following gases, with each gas in a separate container, and exactly 1.0 g of each gas: CO2(g). Ne (g), Cl2
(g), and H2S (g). Which of your prized gases occupies the smallest volume at standard temperature and pressure (STP)?
H2S (g)
CO2 (g)
Cl2 (g)
Ne (g)
Answer:Cl2
Explanation:each gas is 1 gm and has the same P andT. The gas with the highest molar mass will have the lowest volume with least moles. Cl2 wins the prize
Choose the best description that matches the following equation:
2K3PO4 + 3MgSO4 --> Mg3(PO4)2 + 3K2SO4
a) Redox, decomposition
b) Non-redox, synthesis
c) Redox, single displacement
d) Non-redox, double displacement
e) Redox, combustion
Answer:
Non-redox, double displacement
Explanation:
it's the only answer that have double displacement
tell me if it was right
chemists use solution concentration units to
The crystal size of an igneous rock is described as its _____.
Explanation:
The crystal size of an igneous rock is described as it's texture
What is happening when scientists use their five senses to learn new
information?
A. Drawing a conclusion
B. Forming a hypothesis
C. Making observations
C
D. Making predictions
VIOUS
Answer:
A, drawing a conclusion
Explanation:
Cần bao nhiêu gam KMnO4 và bao nhiêu mililit dung dịch axit clohiddric 1M để điều chế đủ khí clo tác dụng với sắt , tạo nên 16,25 G FeCl3
Answer:
I don't know what you're saying cuz give me the brainless answer please
Why is the spectroscope scale illuminated?
Answer:
The spectroscope scale is illuminated so that one can know exactly where the wavelengths of the lines are falling along.
PLEASE HELP: Can't figure this out!
-The substance is a liquid at room temperature.
-When you dissolve it into water, it doesn't conduct electricity.
-The substance boils at 45 oC.
Which is the most likely bond type for this substance?
Choices:
Covalent bond
Metallic bond
Ionic bond
Hydrogen bonding
Cation-pi bond
Answer:
Covalent bond
Explanation:
All the characteristics of a Covalent bond are being described.
When, a substance boils at 45degree C. Then, the most likely bond type for the given substance is a covalent bond. Option A is correct.
Liquid at Room Temperature: The fact that the substance is a liquid at room temperature suggests that the intermolecular forces holding its molecules together are relatively weak. Covalent compounds often have weaker intermolecular forces compared to ionic or metallic compounds.
Doesn't Conduct Electricity When Dissolved in Water: Covalent compounds, in general, do not conduct electricity when dissolved in water. This is because they do not dissociate into ions in solution, which is necessary for electrical conductivity. Ionic compounds, on the other hand, typically dissociate into ions and can conduct electricity in solution.
Boils at 45°C: The relatively low boiling point (45°C) indicates that the intermolecular forces in the substance are weak. Covalent compounds tend to have lower boiling points compared to ionic or metallic compounds, which often have stronger bonding.
Considering these factors, the substance is likely held together by covalent bonds, which involve the sharing of electrons between atoms. This allows for the formation of discrete molecules with weak forces between them.
Hence, A. is the correct option.
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--The given question is incomplete, the complete question is
"The substance is a liquid at room temperature.-When you dissolve it into water, it doesn't conduct electricity.-The substance boils at 45 oC. Which is the most likely bond type for this substance? Choices: A) Covalent bond B) Metallic bond C) Ionic bond D) Hydrogen bonding E) Cation-pi bond."--
Which of the following statements about mass is true? (1 point)
A. A truck has a mass of 2,500 kilograms in the United States. If it goes to Canada, the mass will be converted to weight.
B. A truck has a mass of 2,500 kilograms in the United States. If it goes to Canada, the mass will be less.
C. A truck has a mass of 2,500 kilograms in the United States. If it goes to Canada, its mass will still be 2,500 kg.
D. A truck has a mass of 2,500 kilograms in the United States. If it goes to Canada, its mass will be more.
Answer:
a because mass is converted into weight
Can all alkyl halides react with water to give alcohols?
Not all acid-catalyzed conversions of alcohols to alkyl halides proceed through the formation of carbocations. Primary alcohols and methanol react to form alkyl halides under acidic conditions by an SN2 mechanism.
Not all acid-catalyzed conversions of alcohols to alkyl halides proceed through the formation of carbocations. Primary alcohols and methanol react to form alkyl halides under acidic conditions by an SN2 mechanism.
In these reactions the function of the acid is to produce a protonated alcohol. The halide ion then displaces a molecule of water (a good leaving group) from carbon; this produces an alkyl halide:
Again, acid is required. Although halide ions (particularly iodide and bromide ions) are strong nucleophiles, they are not strong enough to carry out substitution reactions with alcohols themselves. Direct displacement of the hydroxyl group does not occur because the leaving group would have to be a strongly basic hydroxide ion:
We can see now why the reactions of alcohols with hydrogen halides are acid-promoted.
Carbocation rearrangements are extremely common in organic chemistry reactions are are defined as the movement of a carbocation from an unstable state to a more stable state through the use of various structural reorganizational "shifts" within the molecule. Once the carbocation has shifted over to a different carbon, we can say that there is a structural isomer of the initial molecule. However, this phenomenon is not as simple as it sounds.
- BRAINLIEST answerer
N2(g) + 3H2(g) ⟶ 2NH3(g)
The equation above is the equation for the Haber process.
If 2.0 moles of nitrogen are available for a reaction, what amount of hydrogen represents the correct stoichiometric ratio?
Which is most likely part of a healthy heart and lung system?
A. daily exercise
B. carbohydrate-rich diet
C. maintaining a high body mass index
D. diet low in vegetables and lean proteins
A vapor volume of 1.17 L forms when a sample of liquid acetonitrile, CH3CN, absorbs 1.00 kJ of heat at its normal boiling point (81.6 °C and 1 atm). What is Hvap in kilojoules per mole of CH3CN?
The heat of vaporization of CH3CN is obtained from the question as 25 KJ/mol.
We can obtain the number of moles from;
PV = nRT
P = 1 atm
V = 1.17 L
n = ?
R = 0.082 atm LK-1mol-1
T = 81.6 °C + 273 = 354.6 K
n = PV/RT
Substituting values;
n = 1 atm × 1.17 L/0.082 atm LK-1mol-1 × 354.6 K
n = 0.04 moles
Using; q = n·ΔHv
q = Heat absorbed
n = number of moles
Hv = Heat of vaporization
ΔHv = q/n
ΔHv = 1.00 × 10^3/0.04
ΔHv = 25 KJ/mol
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PLSS CAN ANYONE HELP ME..
Answer:
there is two mixture homogeneous and heterogeneous mixture
ok
A diver breathes a heliox mixture with an oxygen mole fraction of 0.050. What must the total pressure (in atm) be for the partial pressure of oxygen to be 0.21 atm?
Answer:
4.2 atm
Explanation:
Dalton’s Law of Partial Pressures
PA = XA(PT)
Partial pressure of A = mole factor of gas A x total pressure of all gases
PA = 0.21 atm
XA = 0.050
PT= ?
0.21atm= 0.050(PT)
0.21/0.050 = PT
PT = 4.2 atm
The total pressure of gases must be 4.2 atm for the partial pressure of oxygen to be 0.21 atm.
How to calculate partial pressure?The partial pressure of a gas can be calculated using Dalton's law of partial pressure equation as follows:
PA = XA(PT)
Where;
PA = partial pressure of oxygen XA = mole factor of oxygenPT = total pressure of all gasesBased on the information given in this question;
PA = 0.21 atmXA = 0.050PT= ?0.21 atm = 0.050 (PT)
0.21/0.050 = PT
PT = 4.2 atm
Therefore, the total pressure of gases must be 4.2 atm for the partial pressure of oxygen to be 0.21 atm.
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Spirit of Australia, a hydroplane boat, made speed records by traveling 239 miles in 0.75 hours (45 minutes). What is its record- breaking speed?
Answer:
the answer is 319 mph
Explanation:
you do 239/.75 (45 minutes will get you a different answer)
3. Explain how the body uses electrolytes to regulate fluid balance. Describe Acid-base balance in the body.
Answer:
Explanation:
1 Electrolytes, particularly sodium, help maintain fluid balance through osmosis. Osmosis is a process where water moves through the wall of a cell membrane from a dilute solution (more water and fewer electrolytes) toward a more concentrated solution (less water and more electrolytes).
2 acid base balance in the body
our body's pH balance, also referred to as its acid-base balance, is the level of acids and bases in your blood at which your body functions best. The human body is built to naturally maintain a healthy balance of acidity and alkalinity. The lungs and kidneys play a key role in this process.
Lead (II) nitrate is reacted with sodium chloride to form a precipitate. What volume (in mL) of 0.666 M lead (II) nitrate is required to react with 517 mL of 2.27 M sodium chloride solution
Answer:
Explanation:
lead 3 is correct!!!!!
Choose the names of the substances for reactants of the equation
2H2 + O2—— 2H2O
The names of the substances for the reactants in the chemical equation 2H₂ + O₂ → 2H₂O are; Hydrogen gas (H₂) and Oxygen gas (O₂). Option A and C is correct.
Hydrogen gas (H₂) - This is the molecular form of hydrogen, consisting of two hydrogen atoms bonded together.
Oxygen gas (O₂) - This is the molecular form of oxygen, consisting of two oxygen atoms bonded together.
In a chemical equation, the reactants are the substances that undergo a chemical reaction to form new products. In this case, the reactants are hydrogen gas (H₂) and oxygen gas (O₂). The arrow (→) in the equation represents the direction of the reaction, indicating that hydrogen gas and oxygen gas react to form water (H₂O).
The coefficient 2 in front of H₂ and H₂O indicates that two molecules of hydrogen gas react with one molecule of oxygen gas to produce two molecules of water. The balanced chemical equation shows the stoichiometry of the reaction, indicating the number of molecules of each reactant and product involved in the reaction.
Hence, A. C. is the correct option.
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--The given question is incomplete, the complete question is
"Choose the names of the substances for reactants of the equation
2H₂ + O₂ → 2H₂O Options; A) Hydrogen B) Water C) Oxygen."--
how many atoms of carbon atoms are in the reactant
Answer:
8
Explanation:
There are 8 carbon atoms in the reactants' side, because you multiply the 2 in front of C4H10 and the 4 under the C atom, and that gives you 8. So, 8 carbon atoms.
What is the mass of 0.5 moles of hydrogen gas
Answer:
1G
Explanation:
Maintenance of............of the body such as temperature level, water content, pH and blood pressure to be in balanced and stable condition
GIVING BRAINLY
The speed of sound waves in air is 340 m/s. Its frequency is 750 Hz. What is its wavelength ?
Answer:
wavelength is 0.77 m
Explanation:
wavelength is y is equal to FB is equal to 44 0340
A cars is moving at 12 m/s and has a mass of 600 kg. What is the kinetic energy for the car? (Formula:KE= 1/2 MV2) 36,300J 43,200J 72,600J 86,400J
Explanation:
ano po topic nyo para maayos sagut
Please help me out !!
why is there no base unit for volume
Answer: Volume. Litre (L) and millilitre (mL) are non-SI units, but because they are easier to write and pronounce, they are in common use.
Explanation: I think the explanation is the answer also
please help!!!
The sky is blue because blue light is scattered in the sky. What does
scattering mean?
A. dust particles are refracting light
B. dust particles are absorbing light
C. dust particles are transmitting light
D. dust particles are reflecting light
B. dust particles are absorbing light
Explanation:When light travels through a medium, it interacts with the medium and this causes the scattering of light. - Photons are absorbed by molecules in the medium, and this causes the molecules to vibrate and then re-emit the photons. ... - The scattering of light increases with frequency
Answer:
C
Explanation:
the answer is C. dust particels are reflecting light. hope this helps
