which of the following statements correctly describes the substance with the formula KI?
There are no statements.
Hahahahahaha, Dr Russ. That's so funny.
But it's true. :D
Let's spare Matt some embarrassment. Here are the answer options:
A. The compound of potassium iodide contains one ion of potassium and one ion of iodine.
B. There is a one-to-two ratio of potassium ions to iodide ions.
C. Potassium iodide is a molecular compound.
D. None of the above
It's NOT B, C or D. The answer is A in this test.
But, the answer could be B IF it were from another test. B WOULD be correct here if it were written like this:
There is a one-to-ONE ratio of potassium ions to iodide ions.
Not one-to-two. But one-to-one. That's why it's wrong in THIS test.
The substance with the formula KI refers to potassium iodide.
To understand which statement correctly describes the substance with the formula KI, we need to analyze the given information. The formula KI represents a compound composed of two elements: potassium (K) and iodine (I).
Now, let's consider the following statements:
1. KI is a metal oxide.
2. KI is a non-metal oxide.
3. KI is a metal halide.
4. KI is a non-metal halide.
First, we need to identify whether potassium (K) is a metal or non-metal. Potassium is a metal element, so it is not an oxide (a compound of oxygen and another element). Therefore, we can eliminate options 1 and 2.
Next, we consider whether iodine (I) belongs to the halogen group, which consists of non-metals. Since iodine is a halogen, we can confirm that potassium iodide (KI) is a compound of a metal (potassium) and a non-metal (iodine).
Hence, the correct statement is: "KI is a metal halide." (Option 3)