Question

complete the following statements.

• mixtures are a ▼ combination of two or more ▼ substances in any proportion.
• compounds are a ▼ combination of two or more ▼ elements in fixed ratios.

Explanation:

• Mixtures: A mixture is formed when two or more different substances are combined physically (no chemical bond formation) and can be in any proportion. So the first blank for mixtures is "physical" and the second is "different".
• Compounds: A compound is formed when two or more different elements are chemically combined (through chemical bonds) in a fixed ratio by mass. So the first blank for compounds is "chemical" and the second is "different".

Answer:

• For the first blank in "Mixtures are a [blank] combination of two or more [blank] substances in any proportion": The first blank is "physical" and the second blank is "different".
• For the first blank in "Compounds are a [blank] combination of two or more [blank] elements in fixed ratios": The first blank is "chemical" and the second blank is "different".