Question

classify each substance below using the items in the answer key:
substance type of matter
salt water
chlorine
hydrochloric acid (hcl)
salad
aluminum
answer bank
element
compound
homogeneous mixture
heterogeneous mixture

Explanation:

Step1: Analyze salt - water

Salt - water is a mixture of salt (sodium chloride) and water. It has a uniform composition throughout, so it is a homogeneous mixture.

Step2: Analyze chlorine

Chlorine is a pure substance made up of only chlorine atoms. It is an element.

Step3: Analyze hydrochloric acid (HCl)

Hydrochloric acid is a pure substance composed of hydrogen and chlorine atoms chemically bonded together. It is a compound.

Step4: Analyze salad

A salad contains different components like vegetables, dressings etc. that are not uniformly distributed. It is a heterogeneous mixture.

Step5: Analyze aluminum

Aluminum is a pure substance made up of only aluminum atoms. It is an element.

Answer:

Salt Water: Homogeneous Mixture
Chlorine: Element
Hydrochloric Acid (HCl): Compound
Salad: Heterogeneous Mixture
Aluminum: Element