1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Evgesh-ka [11]
3 years ago
6

Which formula represents a hydronium ion? (1) H3O+ (3) OH– (2) NH4+ (4) HCO3–

Chemistry
2 answers:
bearhunter [10]3 years ago
5 0

Answer : The correct option is, H_3O^+

Explanation:

The chemical formula of hydronium ion is, H_3O^+

It is formed by the protonation of water that means it is formed by the combination of H^+ ion with the water molecule. The hydronium ion is the positively charged molecule.

It is the simplest form of oxonium ion.

Or we can say that the hydronium ion is produced when an Arrhenius acid dissolves in water.

The reaction will be,

H_2O+H^+\rightarrow H_3O^+

Hence, the correct option is, H_3O^+

Zolol [24]3 years ago
4 0
The answer is (1) H3O+. OH- is called hydroxyl. HN4+ is called ammonium. HCO3- is called bicarbonate. Hydronium ion is the combination of H+ ion(hydrogen ion) and H2O(water molecule).
You might be interested in
A mover packs books, CDs, and DVDs into a moving box. If the box contains 6.5 kg of books, 1.5 kg of CDs, and 2.0 kg of DVDs, wh
mariarad [96]
Given: 
<span>M1 = 6.5 kg of books
</span><span>M2 = 1.5 kg of CDs
</span><span>M3 = 2.0 kg of DVDs

Required: percent by mass of each object

Solution:
First, we calculate the total mass.

M = 6.5 kg + 1.5 kg + 2.0 kg =  10 kg

Percent by mass is calculated by getting the ration of the mass of an object and the total mass multiplied by 100 to get the percent.

%M1 = 6.5 / 10 x 100 = 65%
%M2 = 1.5/10 x 100 = 15%
%M3 = 2.0/10 x 100 = 20%</span>
4 0
3 years ago
Read 2 more answers
Please help. im freaking out rn. i have like 40 missing assignments please
Katarina [22]

Answer:

I'm pretty sure its the one that says very little at the beginning but if I get it wrong I'm sorry

5 0
3 years ago
In solid NaCl, the equilibrium separation between neighboring Na+ and Cl- ions is 0.283 nm. Calculate the coulombic energy betwe
const2013 [10]

Explanation:

It is given that r = 0.283 nm. As 1 nm = 10^{-9} m.

Hence, 0.283 nm = 0.283 \times 10^{-9} m

  • Formula for coulombic energy is as follows.

             U_{coulomb} = -1.748 \frac{e^{2}}{4 \pi \epsilon_{o} r}

where,   e = 1.6 \times 10^{-19} C

            \epsilon_{o} = 8.85 \times 10^{-12}

          U_{coulomb} = -1.748 \frac{(1.6 \times 10^{-19}^{2}}{4 \times 3.14 \times 8.85 \times 10^{-12} \times 0.283 \times 10^{-9}}

                         = 1.423 \times 10^{-18} J

  • As 1 eV = 1.6 \times 10^{-19} J

So,       1 J = \frac{1 eV}{1.6 \times 10^{-19}}

Hence,    U = \frac{1.423 \times 10^{-18} J}{1.6 \times 10^{-19} J}

                   = 8.9 eV

  • Also,   1 J = \frac{10^{-3} kJ}{6.022 \times 10^{23}mol}

                = 1.67 \times 10^{-27} kJ/mol

Therefore, U = 1.423 \times 10^{-18} J \times 1.67 \times 10^{-27} kJ/mol

                     = 2.37 \times 10^{-45} kJ/mol

7 0
3 years ago
14. I have an unknown volume of gas at a pressure of 1.2 atm and a temperature of 210 K. If I raise the pressure to 1.9 atm and
Leya [2.2K]

Answer:

The law is given by the following equation: PV = nRT, where P = pressure, V = volume, n = number of moles, R is the universal gas constant, which equals 0.0821 L-atm / mole-K, and T is the temperature in Kelvin.

Explanation:

6 0
3 years ago
A metal melts at 450 degrees celsius. Is this property of the metal classified as chemical or physical?
Romashka-Z-Leto [24]
It's a physical property because it doesn't change the element of the metal.
does this make sense?
8 0
3 years ago
Other questions:
  • Why are the trends and exceptions to the trends in ionization energy observed? Check all that apply. Ionization energy tends to
    8·2 answers
  • During nuclear fusion on a protostar, ___ fuse to form helium atoms
    14·1 answer
  • We participate in the ______________________cycle every time we breathe. tectonic nitrogen phosphorus carbon-oxygen
    13·1 answer
  • How many grams can be prepared until equilibrium is attained? carbon disulfide is prepared by heating sulfur and charcoal. the c
    7·1 answer
  • The coal with the highest energy available per unit burned is
    6·1 answer
  • Two methods can be used to determine the rate law for a reaction. One is a graphical method used to determine the integrated rat
    6·1 answer
  • Determine the density of chlorine gas at 22C and 1.00 atm pressure
    8·1 answer
  • What is mostly made out of rock and metal with no gas or dust?
    8·1 answer
  • 4 Weathering Assessment
    12·1 answer
  • 13. What is a chemical equation?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!