Answers
Answer:
b ) NH₄⁺ is a stronger acid than H₂O ( l )
Explanation:
NH₄⁺ + OH⁻ = NH₃ + H₂O .
NH₄⁺ is a conjugate acid of NH₃
OH⁻ is a conjugate base of H₂O .
NH₄⁺ is capable of giving H⁺ to OH⁻ to produce H₂O so it is stronger acid than H₂O .
Had H₂O been stronger , it would have given H⁺ to NH₃ to produce NH₄⁺ but it does not happen .
So NH₄⁺ is a stronger acid than H₂O ( l ) .
Related Questions
– Why could a flight from California to New York be shorter than a flight from New York to California?
Answers
Explanation: Honestly, I have no idea and I've never learned this, but I think it's because of air resistance and currents? Going downwind would mean the plane's rate would be the speed of the wind + the speed of the plane itself. Going upwind, the plane's rate would be the speed of the plane - the speed of the wind. Thus, going one way (e. g. California to New York) could take less time than going the other way.
difference between elimination and substitution
Answers
Answer:
elimination:it is the act of discharging or excreting waste product from body is elimination.
substitution:the act/action of replacing someone or something with another person or thing.
When we have atoms with the same quantity of protons but not of neutrons we have: *
Isobars
Isoatoms
Isotopes
Isotones
Atomic mass is an average number of the mass number of the atoms of the nature, if we have an element with an atomic mass in the periodic table of 58.933, we can say that most of its atoms would have a mass number of *
58
57
59
58.5
Answers
PLEASEEE HELPPP!!!!!!
Two students were conducting and experiment based on the ionization energy of alkali metals. The driving question for the experiment was: "What is the relationship between ionization energy and the rate of reaction (time for the reaction to be completed) using alkali metals."
Which of the following predictions would be the best option based on the student's prior knowledge learned and information provided in the graph above?
A.
Cesium will have a higher rate of reaction (faster) because it has the lowest ionization energy which indicates a higher reactivity.
B.
Cesium will have a lower rate of reaction (slower) because it has the lowest ionization energy which indicates a lower reactivity.
C.
The ionization energy of the alkali metals will not affect the rate of the reaction because the energy required to remove an electron does not affect time.
D.
Lithium will have a higher rate of reaction (faster) because it has the highest ionization energy which indicates a higher reactivity.
Answers
Answer:
A
Explanation:
Cs has a higher rate of reaction because it's easier to remove an electron from it, thereby leading to faster reactivity
Answer:
It's A but can i have brainliest pls i kinda need it
Explanation:
please help...
3. Which substance will take more energy to heat from 20C to 100C?
a) 30 g of water
b) 300 g of water
WHY?
please explaining why.....
Answers
Answer:
a because it comes 20 to 100c
How many grams of sodium chloride decompose to yield 15 grams of chlorine gas?
2NaCl → 2Na+ Cl2
A- 12.363 9 Naci
B- 49.453 g Naci
C- 30 g NaCl
D- 0.846 g Naci
Answers
Answer:
24.6g of NaCl
Explanation:
Expression of the reaction:
2NaCl → 2Na + Cl₂
Given parameters:
Mass of Cl₂ = 15g
Unknown:
Mass of NaCl = ?
Solution:
To solve this problem, we have to use mole relationships.
Find the number of moles of the mass of the given specie;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of Cl₂ = 2(35.5) = 71g/mol
Number of moles = [tex]\frac{15}{71}[/tex] = 0.21mole
Now;
From the balanced reaction equation;
1 mole of Cl₂ is produced from 2 moles of NaCl;
0.21 mole of Cl₂ will be produced from 0.21 x 2 = 0.42mole of NaCl
So,
Mass of NaCl = number of moles x molar mass
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
Mass of NaCl = 0.42 x 58.5 = 24.6g of NaCl
I NEED HELP FAST THIS IS DUE AT 9:00
All atoms of the same ___________ have the same properties
Elements
Compounds
Mixtures
Chemicals
Answers
I need help with this question!!!
Answers
Answer:
its c
Explanation:
Which is the transfer of thermal energy through direct contact of particles?
A.radiation
B.specific heat
C.conduction
D.convection
Answers
Explanation:
conducting goodnluck
Answer:
C. Conduction
Explanation:
direct contact of particles will always be conduction.
It is the one in the middle i listened to the first person and i got it wrong by the way this is the answer for edge2020 sience review
Answers
Answer:
for what school? It's different for all sadly :(
Explanation:
Do covalent bonds form in order to fulfill the octet rule
Answers
Answer:
YES
Explanation:
the main reason why bonds form is because the elements wants to be more stable so in a covalent bond the electrons are shared between two elements so they can fulfill or at least "feel" like they have fulfilled there outer shell.
which of these is NOT an example of an inclined plane?
A. Ladder
B. Stairs
C. Wall
D. Driveway
Answers
Answer:
I think its D
Explanation:
It doesn't go straight up
Give the name for the ionic compound NiN
Answers
Answer: potassium chloride
what is a cut circuit
Answers
Answer:
a CUT stands for Circuit Under Test.
Explanation:
What quality of a drop of water increases as it gets closer to the earth surface I’m thinking it’s velocity but I don’t know
Answers
Answer: the correct answer is C velocity.
Explanation: I just got the answer wrong on the exam.
Answer:The Anwser is C; velocity
Explanation:
How might emission spectra be used in studying stars?
Answers
Answer:
Emission spectra may be used in studying stars in order to determine what atoms makeup the individual star produces, due to the fact that each atom’s emission spectra biunique, one can observe the spectra emitted by the star and identify the atoms that are released by the light the star produces.
The emission spectrum can tell the elements present in the source of light. Therefore, this method can be used to get information about the element present in the stars.
What is the emission spectrum?Electromagnetic radiations interact with atoms or molecules of matter, the electrons absorb energy and jump to a higher energy state of atoms by losing their stability.
They need to move from the higher energy state to the lower energy level to regain their stability. These atoms or molecules emit radiations in several regions of the electromagnetic spectrum. The spectrum of radiation emitted by electrons in the excited state is called the emission spectrum.
The emission spectrum of a chemical element is the spectrum of frequencies of electromagnetic radiation emitted when an atom transitions from a high-energy state to a lower-energy state. The emitted energy is unique for every element and is the characteristic of the element.
Learn more about the emission spectrum, here:
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