Chemistry fundamentals: matter states mixtures and chemical changes. - One Line Questions

1. A chemical change always involves: — The formation of new chemical bonds
2. A substance that cannot be broken down into simpler substances by chemical means is called: — An element
3. Which of the following can be separated into simpler substances by chemical means? — A compound
4. In a mixture, the components: — Retain their individual properties
5. The process of a liquid turning into a gas at any temperature is called: — Evaporation
6. Which of the following is an example of a physical change? — Boiling water
7. Which of the following indicates that a chemical change has occurred? — Production of gas or heat
8. A change in which a substance is altered without changing its chemical composition is called a: — Physical change
9. When ice melts into water, it is an example of a: — Physical change
10. A substance composed of two or more elements that are NOT chemically bonded is called a: — Mixture
11. The change of state from gas to solid without passing through the liquid state is called: — Deposition
12. What is a substance that consists of two or more different elements chemically bonded together called? — Compound
13. Which process involves a gas changing into a liquid? — Condensation
14. Which process involves the separation of particles based on their size using a porous barrier? — Filtration
15. The process of a gas cooling and turning into a liquid is called: — Condensation
16. Which separation technique is used to separate a soluble solid from an insoluble solid? — Filtration
17. To separate a soluble solid from a solvent, which technique is commonly used? — Evaporation
18. Which separation technique is used to separate two liquids with different boiling points? — Distillation
19. Which of the following is NOT a method for separating mixtures? — Chemical reaction
20. Which separation technique relies on the difference in volatility of components? — Distillation
21. What is the term for the change of state from liquid to gas? — Evaporation
22. Which type of mixture has a uniform composition throughout? — Homogeneous mixture
23. Salt dissolved in water forms a: — Homogeneous mixture
24. A solution is a type of: — Homogeneous mixture
25. Liquids have a definite volume but do not have a definite shape. Which property explains this behavior? — Low inter-particle forces
26. Which type of mixture has a non-uniform composition, with visible different parts? — Heterogeneous mixture
27. Sand mixed with water is an example of a: — Heterogeneous mixture
28. Which of the following is a characteristic of a chemical change? — It involves the rearrangement of atoms.
29. The process of a solid directly converting into a gas is called: — Sublimation
30. The change of state from liquid to solid is known as: — Freezing
31. The process of a solid turning directly into a gas is known as: — Sublimation
32. Which of the following is an example of a chemical change? — Digesting food
33. What is the basic unit of matter? — Atom
34. Which of the following is an example of a compound? — Salt (NaCl)
35. A change in which a substance is converted into a new substance with different chemical properties is called a: — Chemical change
36. Rusting of iron is a type of: — Chemical change
37. When wood burns, it produces ash and smoke. This is a: — Chemical change
38. Which of the following is a characteristic property of a chemical change? — Formation of a new substance
39. Which of the following is a heterogeneous mixture? — Oil and vinegar dressing
40. Which of the following is NOT a state of matter? — Plasma
41. In which state of matter do particles have the least kinetic energy? — Solid
42. Which state of matter has a definite shape and a definite volume? — Solid
43. Which state of matter is characterized by particles that are far apart and move randomly at high speeds? — Gas
44. What is the term for matter that has a definite volume but takes the shape of its container? — Liquid
45. What is the term for the substance that dissolves in a solvent? — Solute
46. Gases have neither a definite shape nor a definite volume. This is due to: — Very weak inter-particle forces
47. What is the primary characteristic of particles in a solid state? — They vibrate about fixed positions.
48. The process of a liquid turning into a solid is called: — Freezing
49. In a homogeneous mixture, the components are: — Uniformly distributed
50. Which of the following is an example of a mixture? — Air
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