Answer:
C is it!
Explanation:
TRUE
FALSE
Answer:
False
Explanation:
The temperature at which solid changes into liquid is known as the melting point.
Energy is required for a solid to melt into a liquid.
However viscosity is known as friction in liquids. It is the force that opposes movements in liquid. Viscosity causes liquids to be sticky. It is measured as a force per unit area.
As such, melting is the change from solid to liquid and not viscosity.
The answer is thus false.
The statement about “Viscosity is the tendency of a solid to melt to a liquid” is false. It is melting not viscosity. Viscosity is the tendency of how the fluids flow.
(1) Kr (3) N2O4
(2) LiOH (4) NaI
Answer: Option (3) is the correct answer.
Explanation:
A molecular compound is a compound in which atoms used to share electrons and thus results in the formation of covalent bonds.
For example, is a covalent compound and hence, it is a molecular compound.
Whereas LiOH and NaI are ionic compounds as their atoms has transferred electrons.
Therefore, we can conclude that out of the given options, is the formula which represents a molecular compound.
The potassium nuclei have been unstable and results in the spontaneous decay without any external force. Thus, option 3 is correct.
Potassium has been the metal of group 1 of the periodic table. It has been consisted of 19 protons and 20 neutrons in the nucleus.
The nuclei decay has been achieved when there has been loss of the protons in the nuclei, resulting in the radioactive isotopes.
The potassium nuclei have been unstable and results in the spontaneous decay without any external force. Thus, option 3 is correct.
Learn more about potassium nuclei, here:
b) alkyne
c) none of the above?