Answer: Option (A) is the correct answer.
Explanation:
It is known that particles of a gas are held by weak Vander waal forces, therefore, there is no force of attraction between gas molecules.
As a result, these particles are in random motion.
Thus, we can conclude that out of the given options, the constant motion of the particles in a gas allows a gas to fill a container.
Answer:
D
Explanation:
B.there is meat next to the cheese in the refrigerator
C.a boy waits five minutes to talk to his father
D.the mother takes her medication everyday at seven
Answer : Silicon dioxide, , is a covalent compound.
Explanation :
Covalent compound : It is a compound in which the bonds are formed by the equal sharing of electrons. The bonds are formed between two non-metals.
Ionic compound : It is a compound in which the bonds are formed by the complete transfer of electrons.
In the silicon dioxide , the silicon and the oxygen atom is a non-metals and the bonds are formed between silicon and oxygen non-metal atoms are the covalent bonds.
Hence, the silicon dioxide, , is a covalent compound.
Hi
The nucleation reaction called : The physical reaction
I hope that's help !
distillation
evaporation
filtration
sorting