A. The negative ionic radius is larger than the neutral atomic radius.
Answer:
Yes and Yes
Explanation:
On earth, life has been discovered in very extreme places. The Mariana trench with its burgeoning pressure and temperature has a rich fauna life. Polar extremes with their skin deep freezing temperature also has signs of life. Hydrothermal vents are also known to house some of these extreme organisms. In fact, some form of life thrives and survives in very extreme cases.
If life can occur in these extreme conditions on earth, then with the right mix of biological matter, it will not be strange to find life in some very extreme planets.
Explanation: PENIS PENIS PENIS PENIS
<span>21.6 grams
The balanced equation for the reaction is
Cu + 2AgNO3 ==> 2Ag + Cu(NO3)2
So you can easily determine that for each mole of copper used, 2 moles of silver are produced. So let's lookup the atomic weights of copper and silver.
Atomic weight copper = 63.546
Atomic weight silver = 107.8682
Moles copper = 6.35 g / 63.546 g/mol = 0.099927611 mol
Since we'll produce 2 moles of silver per mole of copper used, we get
0.099927611 mol * 2 = 0.199855223 mol
And to get the mass, just multiply by the atomic weight of silver. So
0.199855223 * 107.8682 = 21.55802316 g
Finally, round to 3 significant figures, giving 21.6 g.</span>