Answer:
Explanation:
The quantity of moles of ethanol in the solution is:
The mass and volume of ethanol in the solution are, respectively:
The difference between the total volume of water and ethanol mixed to prepare the solution and the actual volume of solution is:
Answer:
Should be number 4, quartz.
Explanation:
Quartz is rougher than calcite, therefore it's able to scratch it.
Answer:
True
Explanation:
Define purpose.
Construct hypothesis.
Test the hypothesis and collect data.
Analyze data.
Draw conclusion.
Communicate results.
Ionic bond is characterized by the complete transfer of valence electrons between atoms. In this kind of bond, a metal loses its electron in order to become a cation while the nonmetal accept the electron resulting to an anion.
