If radiation normally travels at the speed of light, why does it take longer than 100,000 years for energy from thermonuclear reactions in the solar core to reach the surface of the sun?

The photons undergo innumerable collisions and interactions as they travel from atom to atom.

Explanation:

The sun is a massive body in which nuclear reaction takes place. It involves the nuclear fusion of  hydrogen atoms to produce  He atom. The Helium atom has less mass than the combination of the hydrogen atoms. The excess mass is converted to energy.

Electric charge is conserved in nuclear reactions. A positron otherwise called an anti-matter electron hits a close electron and they produce electromagnetic radiation in form of gamma rays.

x-rays are produced from gamma rays are gamma rays lose energy to nearby particles as they move towards the surface of the sun which in turn becomes ultraviolet rays. in the course of the journey to the surface of the sun, photons must have lost enough energy and be converted to visible light which we can see. The whole process happens over a 100,000years.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

they are all solids.