Answer:
-4
Explanation:
the oxidation number of hydrogen is +1
since there are 4 hydrogen the oxidation number contribution of H is 4
The sum of oxidation number of a charge less compound is always 0
so
C+4×H=0
by general algebra we obtain C= -4.
Question:
The surface area of a sphere can be found using the formula SA=4(x)pi(x)R squared. Middleton Middle School wants to paint kickballs purple for their carnival. The kickballs are all the same size. They used 6923.7 inches
of paint when painting 5 kickballs. What is the radius of each purple kickball? Use 3.14 for pi
x=times
Explanation: