C. Can travel long distances through air
Matter<span> takes up space. You can put it in a container. While gases, liquids, and solids take up space, </span>light<span> and </span>heat<span> do </span>not<span>. Usually </span>matter<span> and energy are found together, so it can be tricky to distinguish between them. Hope this helps!!</span>
What? do you mean what does gravity cause?
Answer:
d)Cells 1 and 2
Explanation:
In a voltaic cell, oxidation occurs at the anode and reduction occurs at the cathode. The half cell that function as anode or cathode in a voltaic cell depends strictly on the reduction potential of the metal ion/metal system in that half cell.
Examining the reduction potentials of the various metal ion/metal systems in the three half cells;
Cu= +0.34 V
Ni= -0.25 V
Zn= -0.76 V
Fe(Fe2+)= -0.44 V
Hence only Zn2+ has a more negative reduction potential than Fe2+. The more negative the reduction potential, the greater the tendency of the system to function as the anode. Thus iron half cell will function as anode in cells 1&2 as explained in the argument above.
