Answer:
Answer is D
Explanation:
xrays would be far more efficient at detecting objects through solids.
Answer:
Electrochemical Cell
Explanation:
An electrochemical cell is a device that can generate electrical energy from the chemical reactions occurring in it, or use the electrical energy supplied to it to facilitate chemical reactions in it. These devices are capable of converting chemical energy into electrical energy, or vice versa.
Answer is: c. CuSO4 + 2NaOH yields Cu(OH)2 + Na2SO4.
Copper atom has oxidation number +2, sulfur atom oxidation number +6, oxygen has oxidation number-2, sodium has oxidation number +1 and hydrogen has +1 on both side of chemical reaction, so elements did not change their oxidation numbers.
FLOOR. Most of the molecules that dont sick to something fall on the floor so most would be on the FLOOR.
Answer:
ore is naturally occuring solid material from which a metal or valuable mineral can be extracted
profitably.
