Question

1. directions

choose the correct answer for each row.
identify each substance as either a compound, element, heterogenous mixture, or homogenous mixture
compound element homogenous mixture heterogenous mixture
bag of nuts and seeds
a drink with ice cubes in it
oxygen (o)
table salt (nacl)
air

Explanation:

Step1: Define types of substances

A compound is made of two or more different - element atoms chemically bonded. An element is a pure substance made of only one type of atom. A homogeneous mixture has a uniform composition throughout, and a heterogeneous mixture has a non - uniform composition.

Step2: Analyze bag of nuts and seeds

It has different types of nuts and seeds that are not chemically bonded and are visibly distinct, so it is a heterogeneous mixture.

Step3: Analyze a drink with ice cubes

The ice cubes and the liquid are two distinct phases, and the composition is not uniform, so it is a heterogeneous mixture.

Step4: Analyze oxygen

Oxygen is made of only oxygen atoms, so it is an element.

Step5: Analyze table salt

Table salt (NaCl) is made of sodium and chlorine atoms chemically bonded, so it is a compound.

Step6: Analyze air

Air is a mixture of nitrogen, oxygen, carbon - dioxide etc. and has a uniform composition at a given altitude, so it is a homogeneous mixture.

Answer:

Bag of nuts and seeds: Heterogenous Mixture
A drink with ice cubes in it: Heterogenous Mixture
Oxygen (O): Element
Table Salt (NaCl): Compound
Air: Homogenous Mixture