Properties And Changes Of Matter Review

Flammability is a chemical property because it describes the ability of a substance to undergo combustion or burn when exposed to a flame or ignition source. This property is determined by the chemical composition and structure of the substance, rather than its physical characteristics.

The state of matter is a physical property because it describes the physical characteristics and behavior of a substance, such as its shape, volume, and density. It does not involve any changes in the chemical composition or identity of the substance.

Density is a physical property because it is a characteristic of a substance that can be measured and observed without changing the substance's chemical composition. Density is defined as the mass of a substance per unit volume, and it remains constant regardless of the amount of the substance present. This property helps to identify and classify different materials based on their density values.

Ice melting is a physical change because it undergoes a change in state from a solid to a liquid without any change in its chemical composition. The molecules in ice rearrange themselves and gain enough energy to break their rigid structure and form a more fluid arrangement, resulting in the formation of water. However, the chemical composition of water remains the same before and after melting.

The correct answer is "Anything that has mass and volume." This is because matter refers to anything that occupies space and has mass. Mass refers to the amount of matter in an object, while volume refers to the amount of space that an object occupies. Therefore, anything that has both mass and volume can be considered as matter. The other options, such as having color or reflecting light, are not defining characteristics of matter.

The ability to react with oxygen is a chemical property because it involves a chemical change in the substance. When a substance reacts with oxygen, new chemical compounds are formed, and the original substance undergoes a chemical transformation. This is different from a physical property, which describes the characteristics of a substance that can be observed or measured without changing its chemical composition.

Combustibility is a chemical property because it describes the ability of a substance to undergo combustion, which is a chemical reaction that involves the rapid combination of a fuel with oxygen to produce heat and light. This property is specific to the chemical composition of a substance and can vary depending on its molecular structure and bonding. Physical properties, on the other hand, are characteristics that can be observed or measured without changing the chemical composition of a substance, such as color, density, or melting point.

Browning fruit is a chemical change because it involves a chemical reaction that results in the formation of new substances. This process, known as enzymatic browning, occurs when enzymes in the fruit react with oxygen in the air, leading to the formation of brown pigments. This change is irreversible and cannot be undone by physical means such as freezing or cutting.

The correct answer is volume-graduated cylinder-mL. This is because the graduated cylinder is a tool used to measure volume, and mL is the appropriate unit of measurement for volume. The other options do not match the property with the proper tool and measurement unit.

When different liquids are mixed together, they will settle with the most dense liquid on the bottom. This is because density is a measure of how much mass is packed into a given volume. The more dense a liquid is, the heavier it is per unit of volume, and therefore it will sink to the bottom when mixed with less dense liquids. This settling occurs due to the force of gravity, which pulls the denser liquid downwards.