Question

Synthesis reaction In this reaction, iron and sulfur react to make Iron (I) sulfide. What is the formula for Iron (I) sulfide? Write and balance the reaction equation. What color is the iron? The sulfur? The iron/sulfur mix? When the iron and sulfur are mixed, is this a physical or chemical change? What color is the Iron (I) sulfide at the end of the reaction? Why do you think the experiment required the heated glass rod? In your own words, why is this considered a synthesis reaction?

Answer 1

The formula for Iron (I) sulfide is FeS. The color of iron is typically gray or silver, while sulfur is yellow. The reaction between iron and sulfur is a chemical change that forms Iron (I) sulfide, which is usually black or grayish-black in color.

Step-by-step explanation:

The formula for Iron (I) sulfide is FeS. The balanced reaction equation is:

Fe + S → FeS

The color of iron is typically a gray or silver color. Sulfur is yellow in color. When iron and sulfur are mixed, it forms a dark gray or black mixture. The reaction between iron and sulfur is a chemical change because new substances with different properties are formed.

At the end of the reaction, Iron (I) sulfide is a dark color, usually black or grayish-black.

The experiment required the heated glass rod because the reaction between iron and sulfur is an exothermic reaction, meaning it releases heat. The heated glass rod helps promote the reaction by providing the necessary heat energy.

This is considered a synthesis reaction because it involves the combination of two elements, iron and sulfur, to form a single compound, Iron (I) sulfide.