Which of the following statements about the nucleus is false? A. Contains nearly all of the mass of the atom.

B. Able to be lost or gained in chemical reactions.

C. None of these

D. Made up of protons and neutrons

D. Made up of protons and neutrons

B

Explanation:

a chemical reaction would only move the nucleas

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.