Question

For each substance decide whether it is a pure substance or a mixture.

Salad
Gold (Au)
Ammonia (NH3)
Mountain Dew
Pure Substance
O
O
O
O
Mixture
O
O

Answer 1

Salad and Mountain Dew are mixtures, while Gold and Ammonia are pure substances.

Step-by-step explanation:

A pure substance refers to a single element or compound, while a mixture is a combination of different substances. Based on this definition, we can determine the nature of each substance:

1. Salad: Mixture - Salad is made up of various vegetables, fruits, and dressings.
2. Gold (Au): Pure Substance - Gold is an element, so it is a pure substance.
3. Ammonia (NH3): Pure Substance - Ammonia is a compound, so it is a pure substance.
4. Mountain Dew: Mixture - Mountain Dew is a carbonated beverage made up of several ingredients like water, high fructose corn syrup, various acids, and flavorings.

Learn more about Differentiating pure substances and mixtures