Question

the compound rule
the physical and chemical properties of a blank have blank to do with the physical and chemical properties of its blank blank.
word options: component, properties, physical, compound, chemical, elements, nothing

Explanation:

To solve this fill - in - the - blank problem related to the compound rule in chemistry (a subfield of Natural Science), we analyze each blank:

Step 1: First blank (after "a")

In the context of the compound rule, we are talking about a compound. So the word "compound" fits here.

Step 2: Second blank (after "have")

The physical and chemical properties of a compound have nothing to do with the physical and chemical properties of its components in the sense of the compound rule. So "nothing" is the correct word here.

Step 3: Third blank (first in the lower row)

A compound is made up of components (elements or other substances in combination). So "components" (or "elements" can also be considered, but "components" is more general here. However, looking at the options, "elements" is also a component of a compound. Wait, actually, the correct sequence is: The physical and chemical properties of a compound have nothing to do with the physical and chemical properties of its elements (or components). Wait, let's re - examine the options. The options are component, properties, physical, compound, chemical, elements, nothing.

Let's build the sentence: "The physical and chemical properties of a compound have nothing to do with the physical and chemical properties of its elements (or components)."

So filling in the blanks:

1. The first empty dashed box (after "a"): compound
2. The second empty dashed box (after "have"): nothing
3. The first empty box in the lower row: elements (or component, but elements is more specific for a compound's building blocks)
4. The second empty box in the lower row: properties (Wait, no, let's re - structure. The full sentence should be: "The physical and chemical properties of a compound have nothing to do with the physical and chemical properties of its elements." Wait, maybe the correct filling is:

• First blank (after "a"): compound
• Second blank (after "have"): nothing
• Third blank (lower left): elements
• Fourth blank (lower right): properties

So the filled sentence is: "The physical and chemical properties of a compound have nothing to do with the physical and chemical properties of its elements." (or with "components" instead of "elements" depending on the context, but "elements" is more accurate for a compound which is made of elements chemically combined)

Answer:

• First blank (after "a"): compound
• Second blank (after "have"): nothing
• Third blank (lower left): elements
• Fourth blank (lower right): properties