A measure of thermal energy transferred between two different bodies at different temperatures would be the correct answer. So, the third option.
Answer:
II) Objects made of silver become tarnished.
Explanation:
Physical properties are the properties which can be observed without changing identity of substance.
Chemical properties are the properties which describe how the substance changes into the different substance completely.
Boiling is an example of physical change in state of the substance. Color is also an example of physical property like boiling point and hence these are constants. The reason of the color is that the chromium ions shows certain colors as the electrons are excited due to absorption of the light. The tarnishing of the silver is an example of the chemical change which occurs due to the reaction of the silver with oxygen. This is also known as corrosion.
Answer:
uranium is classifide as actinide a chemical element atomic number 92 and is a solid at room temperature
Answer: 11.25 moles of 
will be required to completely react with 2.25 moles of 
.
Explanation:
The balanced chemical equation is:
According to stoichiometry :
1 mole of require = 5 moles of
Thus 2.25 moles of will require=
of
Thus 11.25 moles of will be required to completely react with 2.25 moles of .
