Answer:
An electron is around 1800 times smaller than a proton
Explanation:
Oxygen and selenium both have 6 valence electrons. They're in the same group hope this helps
Answer:
mixture of four compounds
mixture of two elements and two compounds
Explanation:
- it can be one of those
- can u tell me if its correct pls I'm studying this too
The names of some ionic compounds include the charge of the metal ion while others do not because there are ionic compounds that are able to form more than one type of ion especially for metals and these compounds should be distinguished properly to avoid confusion. For instance, the metal cation of iron, we have Fe2+ and Fe3+. Ionic compounds with metal cations have a charge that is invariant from a compound to another does not include the charge of the cation. However, for ionic compounds of a metal with a charge that would vary in different compounds should include the charge of that particular metal cation.
<u>Answer:</u> The percent recovery of benzoic acid is 80.0 %
<u>Explanation:</u>
To calculate the percent recovery of the sample, we use the equation:

Mass of purified sample = 1.611 g
Mass of contaminated benzoic acid = 2.014 g
Putting values in above equation, we get:

Hence, the percent recovery of benzoic acid is 80.0 %