Question

Question was provided via image upload.

Explanation:

Question 1 (Multiple Choice)

To determine the conclusion, analyze the image: two smaller circles (element A) and one middle circle (element B). A compound is formed when different elements combine. Option a is wrong (not a single element, two elements). Option b is wrong (same elements combining would be a molecule of an element, but here two different elements). Option d is wrong (only two elements: A and B). Option c is correct as different elements (A and B) combined, forming a compound.

A molecule is a group of atoms bonded together. A compound is a molecule with at least two different elements. In \( \ce{2SO_3} \), each \( \ce{SO_3} \) has S (sulfur) and O (oxygen) atoms. So \( \ce{SO_3} \) is a molecule (atoms bonded) and a compound (contains S and O, different elements). The product \( \ce{SO_3} \) consists of multiple atoms (S and O) chemically bonded, so it’s a molecule. Since it has two different elements (S and O), it’s also a compound.

Water (\( \ce{H_2O} \)) has H and O atoms, so it’s not an element (elements have one type of atom) or an atom (water is a molecule). It’s not a mixture (mixtures have physically combined substances). A compound is a substance with two or more different elements chemically combined, so \( \ce{H_2O} \) is a compound.

Answer:

c) This image is a compound because different elements have combined with each other

Question 2 (Explanation)