Paper chromatography can be applied to "ink" to determine if it is a pure substance or a "mixture" of pure substances (in which two or more pure substances are combined). Since, tested with paper chromatography, "ink" separates into its constituent pure substances, Ink is a mixture.
I hope this helps.
P.S. Thank you for choosing me as brainliest answer on my last.
Answer:
2.95 g / mL
Explanation:
For this problem, we will simply use the equation that density is equivalent to mass over volume. We are given the mass of the object and the initial and final volumes of water in the cylinder. Thus we can find the density as such:
Density = Mass / ( Final Volume - Initial Volume )
Density = 3.689 g / ( 8.54 mL - 7.29 mL )
Density = 3.689 g / ( 1.25 mL )
Density = 2.9512 g / mL
Hence, the density of the object is 2.9512 g / mL.
Cheers.
We can directly solve
this problem using the wavelength formula which is:
wavelength = speed of
light / frequency
We know from the given
that 99.30 FM = 99.30 MHz, therefore:
wavelength =
(2.99*10^8 m/s) / (99.30*10^6 Hz) <span>
<span>wavelength = 3.011 meters</span></span>
Br- < Se2- < As3- < Sr2+ < Rb+
I hope this helps although I'm not a hundred percent sure!
Evaporation because the salt would dissolve in the water then boil the water and it will evaporate leaving the salt left in the bowl
