Question

select all that apply
copper sulfate is made up of the elements copper, sulfur, and oxygen. which statements about these substances are true?
copper sulfate is a powdery, yellow solid, while sulfur is a blue - green metal.
copper, sulfur, oxygen, and copper sulfate all have very different properties.
copper, sulfur, and copper sulfate are all solids, but they have different properties.
copper, sulfur, and oxygen can combine to form copper sulfate, which has properties that are distinct from each of those elements.

Explanation:

• Option 1: Copper sulfate is blue - green (not yellow), and sulfur is a non - metal (not a blue - green metal). So this option is false.
• Option 2: Copper is a metal, sulfur is a non - metal, oxygen is a gas, and copper sulfate is a compound. They have different physical and chemical properties. This option is true.
• Option 3: Copper is a metal (solid), sulfur is a non - metal (solid), and copper sulfate is a compound (solid). And they have different properties. This option is true.
• Option 4: Copper (Cu), sulfur (S), and oxygen (O) can react to form copper sulfate (\(CuSO_4\)). The properties of \(CuSO_4\) (such as color, solubility, chemical reactivity) are different from Cu (a metal with good conductivity), S (a non - metal with certain reactivity), and O (a gas). This option is true.

Answer:

B. Copper, sulfur, oxygen, and copper sulfate all have very different properties.
C. Copper, sulfur, and copper sulfate are all solids, but they have different properties.
D. Copper, sulfur, and oxygen can combine to form copper sulfate, which has properties that are distinct from each of those elements.