Answer:
The greater the energy required to break a bond, the stronger that bond must be.
Explanation:
Most iconic bonds are considerably stronger, more difficult to break, than covalent bonds.
Hope this helps! :) x
Any waves traveling along the medium will reflect back when they reach the end.
Answer:
Electrolytes are substances that can ionize in water. They could be acids, bases or salts as long as they give ions when they dissolve in water.
Explanation:
- <em>Strong electrolytes</em> completely ionize when dissolved in water, leaving no neutral molecules. The strong electrolytes here are:<u> salt water</u>, <u>baking soda (NaHCO3) solution.</u>
- <em>Weak electrolytes</em> do not completely dissociate in solution, and hence have a low ionic yield. Examples of this would be<u> vinegar </u>and <u>bleach </u>(which could be sodium hypochlorite or chlorine, which are weakly dissociated).
- <em>Non-electrolytes </em>will remain as molecules and are not ionized in water at all. In this case, <u>sugar solution is a non-electrolytes</u>, even though sugar dissolves in water, but it remains as a whole molecule and not ions.
Answer:
38,050,000,000,000 picoliters.
Explanation:
10-5=5, 7.61 x 5=38.05 (38.05L)
every liter is equal to 1000000000000 picoliters, so you go from there and just multiply 1000000000000 by 38.05.
Hey there!
Molar mass NaCl = 58.44 g/mol
number of moles:
n = m / mm
n = 15.0 / 58.44
n = 0.2566 moles of NaCl
Volume in Kg :
50.0 g / 1000 => 0.05 Kg
Therefore :
Molality = moles of solute / volume
Molatity = 0.2566 / 0.05
Molality = 5.132 mol/kg