Answer:
The answer to your question is below
Explanation:
Alpha decay occurs when a radioactive atm emits an alpha particle (Helium atom).
a) ²⁵⁶Ra ⇒ ²⁵²₈₄ Po + ⁴₂He
b) ²¹⁹Rn ⇒ ²¹⁵₈₂Pb + ⁴₂He
c) ²¹¹Po ⇒ ²⁰⁷₈₀Hg + ⁴₂Hg
d) ²¹⁰Pb ⇒ ²⁰⁶₇₈Pt + ⁴₂Hg
e) ²³⁸U ⇒ ²³⁴₈₈U + ⁴₂Hg
Answer:
Hydrosphere. The hydrosphere is 33% oxygen by volume present mainly as a component of water molecules with dissolved molecules including free oxygen and carbolic acids (HxCO3).
Answer:
1.47 atm
Explanation:
From the question.
Applying
PV = nRT................. Equation 1
Where P = pressure, V = volume, T = temperature, n = number of moles, R = Molar gas constant
Makr P the subject of the equation
P = nRT/V................ Euqation 2
Given: V = 50.0 L, n = 3.00 mol, T = 25°C = (273+25) = 298K,
Constant: R = 0.082 atm.L.K⁻¹mol⁻¹
Substitute these values into equation 2
P = (3×298×0.082)/(50)
P = 73.308/50
P = 1.46616
P ≈ 1.47 atm
Answer:
A Brønsted-Lowry acid.
A Brønsted-Lowry base.
Ammonia is an acceptor of proton.
Explanation:
A Brønsted-Lowry acid is any atom that can donate a proton (H +) to another atom or molecule whereas Brønsted-Lowry base is any species that can accept a proton from another atom or molecule or in other words, a Brønsted-Lowry acid is a proton donor, while on the other hand, a Brønsted-Lowry base is a proton acceptor. The ammonia molecule accepts the hydrogen ion is considered as the Brønsted-Lowry base.