Classification of Matter Practice Problems

Barium is frequently utilized in spark plug electrodes. Identify whether barium is an element, compound, or mixture.

Denatured alcohol refers to ethanol that has additives such as methanol and acetone. Determine whether denatured alcohol is a pure substance or a mixture.

Determine whether coconut oil at 30 °C is a homogeneous or heterogeneous mixture.

A pure substance can be classified as an element or a compound. Identify whether astatine (At), a pure substance, is an element or a compound.

Determine whether a herbal decoction is a homogeneous or a heterogeneous mixture.

Potassium cyanide (KCN) is a pure substance that can be further classified as an element or a compound. Is KCN an element or a compound?

Determine whether a well-filtered black coffee is homogeneous or heterogeneous.

A yellow solid is exposed to sunlight, resulting in a white metal and an orange gas. Neither the metal nor the gas can be further decomposed by chemical processes. Identify the elements and compounds among the yellow solid, white metal, and orange gas.

Rust, Fe₂O₃ • H₂O(s), is formed by the reaction of iron, Fe(s), and oxygen, O₂(g), in the presence of water, H₂O(l): 4 Fe(s) + 3 O₂(g) + 2 H₂O(l) → 2 Fe₂O₃ • H₂O(s)

Identify the elements and compounds in the reaction.

Classify each of the following as (a) solid, (b) liquid, (c) gas, (d) element, (e) compound, and/or (f) mixture.

i) Ice
ii) Soda
iii) Iron
iv) Heliox

Identify which substance is a mixture

(i) sugar (C₆H₁₂O₆)

(ii) atmosphere

(iii) fruit salad

(iv) cinnamon sugar

Which of the following is not an example of matter?

Identify the homogeneous mixture

Which of the following statements is correct?

Based on the given image, determine the incorrect statement

Identify the compound from the following