Explanation:
Thomson's suggested the plum pudding model of the atom in which the atomic space is made up of electrons surround by positive charges.
Rutherford in his gold foil experiment revised the plum pudding model of the atom;
- He discovered that most of the alpha particles passed through the foil while a few of them were deflected back.
- To explain this observation, he suggested the atomic model of the atom.
- In this model, an atom is made up of a small positively charged center where nearly all the mass is concentrated.
- Surrounding the nucleus is the extranuclear part made up of electrons.
Hi~~
H2O, commonly known as water, is definitely a compound.
David's conclusion is wrong because the hydrogen gas combined with oxygen from the air to form dihydrogen monoxide, also known as water.
The solution process is exothermic because when solution become colder heat energy is released which make the process exothermic. The exothermic process is the process in which heat is released.The solution forms inorder to separate NH4+ ions and Cl- ions
<span>Diffusion is a net movement of particles through a barrier driven by a concentration gradient. In diffusion, particles move from an area of higher concentration to the area of lower concentration in order to balance concentrations on the both sides of the barrier. For example, when you put a teabag into a hot water, concentration of tea particles in the hot water is much lower than in a teabag and the particles of tea will diffuse into water.</span>
The answer would be, D. because ive taken the test.
