Answer:
An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.
I believe that the answer is B but i am not a hundred percent sure im on the same question for an exam
Answer:
The answer to your question is 3.5 moles of I₂
Explanation:
Data
moles of I₂ = ?
moles of KI = 7
Balanced chemical reaction
2KI ⇒ 2K + I₂
Process
To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical reaction for this proportion.
2 moles of KI --------------------- 1 mol of I₂
7 moles of KI -------------------- x
x = (7 x 1) / 2
-Simplifying
x = 7/2
-Result
x = 3.5 moles of I₂
