Answer:
neutrons should be added with the protons
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.
The only one i can make sense out of would be:
<span>
(1) "</span><span>After the reaction was completed, the student failed to withdraw the rod to its original position before taking the second buret reading." </span><em>this would affect the volume, since the rod is submerged in the solution, it would affect the reading (it would appear as a greater volume).</em>
Answer:
Its the first option
Explanation:
The volume of NaOH added will be more than that which is needed to neutralise the acetic acid. As the result is calculated from the volume of NAOH added from the burette, the result will be higher than the true result.
To solve for the solubility of this compound:Cu ^ + 2 + CO3 ^ -2 = [x] [x] = x^2 1.4 x 10 ^ -10 = x^2 x = 1.1832 x 10 ^ -5 1.1832 x 10 ^ -5 moles/ L x 123.526 g/mol (molar mass) is equals to 1.5 x 10 ^-3 g/L is the solubility of this compound - CuCO3.
