Questions:
What instrument is used to measure the mass of different isotopes of an element?
Answer:
Mass spectrometer
I really hope and think it’s E
Answer:
The surface area increases, thus increasing the rate of reaction
Explanation:
When you use powder instead of solid metal, the surface area to volume ratio increases and so does the rate of reaction, because the chance of collisions between the particles increases as they can "touch" the metal more easily when it is looser, like powder.
Answer:
Hexane.
Explanation:
Hello!
In this case, since the general reaction of the compound C4H14 with chlorine is:
Which stands for a substitution chemical reaction in which one chlorine is able to replace one hydrogen and therefore hydrogen chloride gives off; we infer that the initial compound, C4H14, shows off the 
formula characteristic of alkanes; in such a way, as it has six carbon atoms, we infer it is hexane.
Best regards!
Answer: C Snow
Explanation:
Because the temperature is low and it is below freezing temperature. Sorry if I am wrong.
