kinetic energy is the energy of motion
A. Distillation. If the mixtures have different boiling points, the liquid with the lower boiling point will distill off first, followed by the other one.
“B. Filtration” is <em>incorrect</em>. Both liquids will pass through the filter paper.
“C. Sedimentation” is <em>incorrect </em>because it works only for a solid suspended in a liquid.
“D. Evaporation” is <em>incorrect</em>. Both liquids will pass into the atmosphere never to be seen again.
Answer: a) 
Explanation:
As we know that,
where,
q = heat released = -600.2 J
= mass of iron rod =100 g
= final temperature =
= initial temperature = ?
= specific heat of iron = 
Now put all the given values in equation, we get
![-600.2J=100\times 0.452J/g^0C\times (25.0-T_{initial})^0C]](https://tex.z-dn.net/?f=-600.2J%3D100%5Ctimes%200.452J%2Fg%5E0C%5Ctimes%20%2825.0-T_%7Binitial%7D%29%5E0C%5D)
Therefore, the initial temperature of iron rod was
Answer:
The molarity of the HCl solution is 4M.
Explanation:
Hence, the molarity of the HCl solution = 4 M
I believe the answer is "After adding two substances together a new order is detected" because nearly all of the other answers suggest a chemical change has taken place. The reason I say "almost" is because answer two and four results in bubbles forming so the answer cannot be both. The only one to not clearly show a chemical change has occurred is the last answer.
