Answer:
200 g/L
Explanation:
The concentration of a solution (also called molarity) can be calculated with the formula:

where
m is the mass of the solute
V is the volume of the solution
For the solution in this problem we have:
m = 50g is the mass of the solute
V = 250 mL = 0.250 L is the volume of the solution
Therefore, the concentration of the solution is:

<span>The correct answer is:
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4) "The valence electrons are given up by the Na and gained by the F. "
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Answer:
Shinkansen this a bullet train are very high speed trains in Japan. The disaster was nearly saved to occur with legitimate and successful administration. On 11 December, a split was found in a train which was around 14 cm long. It is said that had it been 17 cm, the train could have been crashed and along these lines the calamity didn't happen just by 3 cm.
It was a five hour journey meanwhile a intern who was selling something seen an odd smell and conversed with the conductor about it. At long last it was explored and they additionally saw a bizarre sound at a station while boarding. at the point when the architects explored, they chose to proceed with the voyage saying everything is ordinary. At last the train halted at Nagoya station where the break was watched obviously. It additionally had sensors that could identify it
In spite of the fact that they halted before the break could turn out to be huge, if wrecking had happened, it could have caused gigantic devastation. Till now, the makers asserted that slug trains have zero percent plausibility to confront any mishap however this episode opened the eyes of all.
Explanation:
Answer: Look up a video, and they will tell/show you.
The units for k need to cancel when multiplied by [A][B] to leave the units for rate which should be M·s^-1
(M^-1 ·s^-1)*(M)*(M) = M·s^-1