Answer:
The correct answer is - c. adding 10 mL bleach to 90 mL water.
Explanation:
To prepare a effective disinfecting solution to clean the countertops is a bleasce solution of 10% solution of bleach. The ten percent of the bleach solution means there are one volve of bleach and 9 volume of clean water in this solution.
So, preparing the 1/10 or ten percent solution is where adding 10 ml of bleach which is diluted to 90 ml clean water. This diluted solution can be use as disinfecting solution.
Answer:
c. H2(g) + CuO(s) → Cu(s) + H2O(l)
e. H2(g) + Cl2(g) → 2HCl(g)
Explanation:
A redox reaction is a reaction that involves a changes in oxidation number of the species involved in the reaction.
The oxidizing agent experiences a decrease in oxidation number while the reducing agent experiences an increase in oxidation number.
For H2(g) + CuO(s) → Cu(s) + H2O(l)
Copper is reduced from +2 to 0 while hydrogen is oxidized from 0 to +2 Hence hydrogen is the reducing agent while copper is the oxidizing agent.
For H2(g) + Cl2(g) → 2HCl(g)
Chlorine is reduced from 0 to -1 while hydrogen is oxidized from 0 to +1. Hence chlorine is the oxidizing agent while hydrogen is the reducing agent.
Answer:
The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. ... A stable atom contains the same number of electrons as protons and no net charge. When electrons are added or removed, the stable atom becomes an ion.Apr 12, 2015
Explanation:
hope this helps ✌️
Answer:
the answer is
<em><u>C. to collect rock samples from the moon</u></em>
I swear I did't copy off of the first person I just took the test and at the end went I completed the test it showed me the real answer.
I hope that this is helpful for you
:D
B im just typing more because it has to be longer than 20 characters
