Respuesta :
The answer is steel because you cannot pick water, oxygen, or gold out of a mixture.
Answer: Steel is a mixture amongst the following substances.
Explanation: Mixture is defined as the substance made up from the mixing of two or more substances.
- Steel is an alloy or a homogeneous mixture of Carbon, iron and other elements.
- Water is a compound as it is formed by the chemical combination of hydrogen and oxygen.
- Oxygen is a molecule constituting same element.
- Gold is an element as it is a pure substance.
