Chemistry & ProductsQuestion 302 of 484
A bleach manufacturer specifies a 1:2 ratio of lightener powder to developer. If you scoop 1 ounce of powder, how many ounces of developer do you add?
a.4 ounces
b.3 ounces
c.0.5 ounce
d.2 ounces
Explanation
A 1:2 powder-to-developer ratio means two parts developer per one part powder. 1 oz powder x 2 = 2 oz developer. Using less developer than directed produces a stiff, dry paste that overheats and can scorch hair.
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