Many homes, businesses, and schools have heating systems to keep the air warm when the temperatures outside get too cold to be comfortable. Some heating systems work by burning a fuel called propane. Propane is usually collected during the processing of natural gas, which is a fossil fuel. Propane can also be produced from crude oil, though that is less common. Propane exists in gaseous form at room temperature, as long as it is not pressurized. For storage, it is often pressurized so that it will be a liquid. Propane's chemical formula is C3

Question

H8
. This is a ball-and-stick model of a propane molecule.

Question
Think about what the letters and numbers in the chemical formula for propane must mean. Label each item shown in the diagram.

Drag and drop the words into the correct boxes to label the diagram. You should view this on an actual computer. The image may not appear correctly on a phone or tablet.

(3 points)
Drop target 1
Drop target 2
Drop target 3

Answer 1

To label the ball-and-stick model of a propane molecule (C3H8), you can use the following terms for the three main components:

1. Carbon (C): Propane contains three carbon atoms. In the ball-and-stick model, the black or grey balls usually represent carbon atoms.
2. Hydrogen (H): Propane also contains eight hydrogen atoms. The smaller balls are typically used to represent hydrogen atoms, often colored white.
3. Chemical Formula: The chemical formula itself, C3H8, represents the composition of propane with three carbon atoms and eight hydrogen atoms.

You can drag and drop these labels into the appropriate areas in the diagram based on which atom is represented by which colored ball.

Let me know if you need further assistance!