Read the Safety Data Sheet of hydrogen peroxide to identify the recommended way to store this substance. Choose one:. a. In an open container in a bright and humid environment
b. In a glass, leak-proof bottle on a shelf or cabinet
c. In a tightly closed container in a dry and well-ventilated place
d. In a well-ventilated container in a closed, dry area

The correct option is C.

In a tightly closed container in a dry and well-ventilated place

Explanation:

Hydrogen peroxide should be store in a tight closed container and ventilated area because it is an oxidizing agent and it's has oxidizing characteristics. If to is exposed or the bottle lid is broken and exposed it can react and liberate oxygen and heat. It can react with the air and chemical it is exposed with. This will make it to be less effective and there will be a change in it's composition.

what does the table look like

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer