Observe Record observations of the reaction and products in the data table The brown solid that formed is

✓ copper

Analyze Complete the balanced chemical equation in the data table. Then, determine the type of reaction

✓ single replacement

The zinc replaced the copper ion. Therefore, the
other product is

✓ zinc sulfate

I couldn’t find a couple of these questions and answers on here so hope this helps for edg 2020

b

explanation:

mitosis

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.