Answer:
A solvent is a substance which dissolves a solute. When a solvent dissolves into a solute, it creates a solution
Well definitely a scientist
The answer is A, when these particles are heated they tend to speed up.
Answer:
b) Silicon and oxygen
Explanation:
A compound is a pure substance that contains two or more atoms chemically joined together. Sand is regarded as a 'compound' because it is made up of two or more atoms that are chemically bonded to one another.
Sand is said to predominantly contain silica, which has a chemical formula of SiO2. Hence, sand can be said to be a compound containing one atom of silicon (Si) and two atoms of oxygen (O2).
Answer:
Current understanding
It is now known that quasars are distant but extremely luminous objects, so any light which reaches the Earth is redshifted due to the metric expansion of space. ... Light and other radiation cannot escape from within the event horizon of a black hole.
