Is cake a mixture or pure substance?

* Multiple Components: Cake is made from flour, sugar, eggs, butter, milk, and other ingredients.

* Variable Composition: The proportions of these ingredients can vary depending on the recipe, resulting in different types of cakes.

* No Chemical Change: The ingredients in cake are physically combined, not chemically reacted. You can still identify the individual components of cake.

Pure substances have a fixed composition and are chemically uniform. Examples include water, sugar, and salt.