10.

Question

(03.06 LC)

Which of the following methods separates a homogeneous solution by spinning the solution very fast? (1 point)

Evaporation and distillation

Filtration

Centrifuge

Magnetism
11.
(03.06 LC)

Which of the following is a pure substance? (1 point)

Air

Sand

Steel

Water
12.
(03.06 MC)

What type of matter is 500 grams of silver combined with gold? (1 point)

Mixture of two elements

Mixture of two compounds

Pure substance that is an element

Pure substance that is a compound

Answer 1

10. Centrifuge - This method separates a homogeneous solution by spinning the solution very fast, causing the components to separate based on their density.

11. Water - Water is a pure substance, as it has a consistent and uniform composition (H2O).

12. Mixture of two elements - 500 grams of silver combined with gold is not a pure substance, as it consists of two different elements (silver and gold) mixed together.