(20/23) times 100 is 87%
now the answer asks for percentage ERROR
100-87 =13
so answer is C
Pretty sure it is Block A:)
Answer:
A. Add a coefficient 4 before h2o and add a 2 before so2
Explanation:
Essentially the term binary, meaning each different thing has two components. Binary ionic compounds have two ionic compounds, binary molecular compounds have two molecular compounds, and binary acids have two acids.
