Question

the chemical formula for iodine pentafluoride liquid is

a. if₅
b. i₅f
c. i₂f₅
d. i₂f₅

use the following information to answer the question: which solution is most likely hcl(aq)?

use the following information to answer the questions.
properties of tested solutions
solution conductivity effect on red litmus paper effect on blue litmus paper ph
1 low none none 3
2 low changed to blue none 7
3 high none changed to red 1
4 high none changed to red 1
5 high none none 7

Explanation:

1. First question: Chemical formula of iodine pentafluoride

Iodine is represented by $I$ and fluorine by $F$. Penta - means five. So iodine pentafluoride has one iodine atom and five fluorine atoms, with the formula $IF_5$.

Hydrochloric acid ($HCl(aq)$) is a strong acid. Strong acids have high conductivity due to complete dissociation in water, turn blue litmus paper red, and have a low pH. Solution 4 has high conductivity, changes blue litmus paper to red, and has a pH of 1, which are characteristics of a strong acid like $HCl(aq)$.

Answer:

A. $IF_5$

2. Second question: Identifying $HCl(aq)$