Aproton is also known as this ion __

Explanation:

An atom consists of three subatomic particles, that is, protons, neutrons and electrons. Nucleus of an atom consists of protons and neutrons whereas electrons revolve around the nucleus.

Protons are positively charged whereas neutrons have no charge and electrons are negatively charged.

Thus, we can conclude that a proton is also known as positively charged ion.

d.) circle motion requires a force to give it a centripetal acceleration.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"