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Questions and Answers
Is blue color a physical or chemical property?
Is blue color a physical or chemical property?
- Physical (correct)
- Chemical
Is density a physical or chemical property?
Is density a physical or chemical property?
- Physical (correct)
- Chemical
Is flammability a physical or chemical property?
Is flammability a physical or chemical property?
- Physical
- Chemical (correct)
Is solubility a physical or chemical property?
Is solubility a physical or chemical property?
Is reacting with acid a physical or chemical property?
Is reacting with acid a physical or chemical property?
Does supports combustion refer to a physical or chemical property?
Does supports combustion refer to a physical or chemical property?
Is sour taste a physical or chemical property?
Is sour taste a physical or chemical property?
Is melting point a physical or chemical property?
Is melting point a physical or chemical property?
Is reacting with water a physical or chemical property?
Is reacting with water a physical or chemical property?
Is hardness a physical or chemical property?
Is hardness a physical or chemical property?
Is boiling point a physical or chemical property?
Is boiling point a physical or chemical property?
Is luster a physical or chemical property?
Is luster a physical or chemical property?
Is odor a physical or chemical property?
Is odor a physical or chemical property?
Is reacting with air a physical or chemical property?
Is reacting with air a physical or chemical property?
Does NaCl (table salt) dissolving in water represent a physical or chemical change?
Does NaCl (table salt) dissolving in water represent a physical or chemical change?
Is Ag (silver) tarnishing a physical or chemical change?
Is Ag (silver) tarnishing a physical or chemical change?
Is cutting an apple a physical or chemical change?
Is cutting an apple a physical or chemical change?
Is heating water to convert it to steam a physical or chemical change?
Is heating water to convert it to steam a physical or chemical change?
Does baking soda reacting with vinegar result in a physical or chemical change?
Does baking soda reacting with vinegar result in a physical or chemical change?
Is rusting of Fe (iron) a physical or chemical change?
Is rusting of Fe (iron) a physical or chemical change?
Is the evaporation of alcohol a physical or chemical change?
Is the evaporation of alcohol a physical or chemical change?
Is ice melting a physical or chemical change?
Is ice melting a physical or chemical change?
Is milk souring a physical or chemical change?
Is milk souring a physical or chemical change?
Is sugar dissolving in water a physical or chemical change?
Is sugar dissolving in water a physical or chemical change?
Is wood rotting a physical or chemical change?
Is wood rotting a physical or chemical change?
Is cooking pancakes a physical or chemical change?
Is cooking pancakes a physical or chemical change?
Is grass growing a physical or chemical change?
Is grass growing a physical or chemical change?
Is inflating a tire a physical or chemical change?
Is inflating a tire a physical or chemical change?
Is water absorption by a paper towel a physical or chemical change?
Is water absorption by a paper towel a physical or chemical change?
Is an ice cube melting in the sun a physical or chemical change?
Is an ice cube melting in the sun a physical or chemical change?
Does mixing two chemicals producing gas indicate a physical or chemical change?
Does mixing two chemicals producing gas indicate a physical or chemical change?
Is a bicycle changing color as it rusts a physical or chemical change?
Is a bicycle changing color as it rusts a physical or chemical change?
Is crushing a solid to a powder a physical or chemical change?
Is crushing a solid to a powder a physical or chemical change?
Do two substances mixing and producing light indicate a physical or chemical change?
Do two substances mixing and producing light indicate a physical or chemical change?
Is an ice cube melting and reacting with sodium a physical or chemical change?
Is an ice cube melting and reacting with sodium a physical or chemical change?
Is mixing salt and pepper a physical or chemical change?
Is mixing salt and pepper a physical or chemical change?
Is dissolving chocolate syrup in milk a physical or chemical change?
Is dissolving chocolate syrup in milk a physical or chemical change?
Is toasting a marshmallow over a campfire a physical or chemical change?
Is toasting a marshmallow over a campfire a physical or chemical change?
Is cutting a marshmallow in half a physical or chemical change?
Is cutting a marshmallow in half a physical or chemical change?
In Scenario 1, is it a chemical, physical or both when the bread is hot and changes size?
In Scenario 1, is it a chemical, physical or both when the bread is hot and changes size?
In Scenario 2, is turning black a chemical or physical change in bread?
In Scenario 2, is turning black a chemical or physical change in bread?
In Scenario 3, does a color change indicate a chemical or physical change?
In Scenario 3, does a color change indicate a chemical or physical change?
In Scenario 4, is having dry hair a chemical or physical change?
In Scenario 4, is having dry hair a chemical or physical change?
In Scenario 5, when bubbles and CO2 expansion occur, does this indicate a physical or chemical change?
In Scenario 5, when bubbles and CO2 expansion occur, does this indicate a physical or chemical change?
In Scenario 6, is a color change indicative of a physical or chemical change?
In Scenario 6, is a color change indicative of a physical or chemical change?
In Scenario 7, is a shape change a chemical or physical change?
In Scenario 7, is a shape change a chemical or physical change?
In Scenario 8, does a color change imply a chemical or physical change?
In Scenario 8, does a color change imply a chemical or physical change?
In Scenario 9, is the size change and hormone reaction a physical or chemical change?
In Scenario 9, is the size change and hormone reaction a physical or chemical change?
In Scenario 10, does a change of natural state indicate a chemical or physical change?
In Scenario 10, does a change of natural state indicate a chemical or physical change?
Changing the size and shapes of pieces of wood would be a chemical change.
Changing the size and shapes of pieces of wood would be a chemical change.
In a physical change, the makeup of matter is changed.
In a physical change, the makeup of matter is changed.
Evaporation occurs when the liquid water changes into a gas.
Evaporation occurs when the liquid water changes into a gas.
Evaporation is a physical change.
Evaporation is a physical change.
Burning wood is a physical change.
Burning wood is a physical change.
Combining hydrogen and oxygen to make water is a physical change.
Combining hydrogen and oxygen to make water is a physical change.
Breaking up concrete is a physical change.
Breaking up concrete is a physical change.
Sand being washed out to sea from the beach is a chemical change.
Sand being washed out to sea from the beach is a chemical change.
When ice cream melts, a chemical change occurs.
When ice cream melts, a chemical change occurs.
Acid rain damaging a marble statue is a physical change.
Acid rain damaging a marble statue is a physical change.
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Study Notes
Physical Properties
- Blue color is a characteristic identified as a physical property.
- Density measures how much mass is contained in a given volume, confirming its classification as a physical property.
- Solubility indicates whether a substance dissolves in a solvent, which is a physical characteristic.
- Sour taste is a sensory trait and falls under physical properties.
- Hardness determines how resistant a material is to deformation, categorizing it as physical.
- Boiling point signifies the temperature at which a liquid turns to vapor, making it a physical property.
- Luster refers to the way light interacts with the surface of a mineral, a physical property.
- Odor describes the smell of a substance, recognized as a physical property.
- Melting point is the temperature at which a solid becomes a liquid; it's a crucial physical property.
- Physical changes include actions like cutting an apple, heating water to steam, and the melting of ice.
- Evaporation, such as from an ice cube in the sun, is a physical change where liquid turns to gas.
- Mixing salt and pepper results in a physical combination, not a chemical reaction.
- Dissolving sugar or chocolate syrup in water is a physical change as no new substances are formed.
- Inflating a tire represents a physical change related to shape and volume adjustments.
Chemical Properties
- Flammability indicates how readily a substance will burn, classifying it as a chemical property.
- Reactivity with acid, water, and air signifies chemical changes, revealing how substances interact under certain conditions.
- Combustion support implies a substance's ability to sustain a fire, reflecting its chemical properties.
- Changes such as milk souring and baking soda reacting with vinegar showcase chemical reactions and transformations.
- Chemical processes involve rusting of metal (iron) and tarnishing of silver, indicating transformations at a molecular level.
- Growth of grass and digestion of food are examples of chemical changes occurring in nature and organisms.
Scenarios Describing Changes
- Scenario 1 illustrates both physical (size change) and chemical aspects (heat) with bread while baking.
- Scenario 2 depicts a chemical change where bread turns black.
- Scenario 3 involves color changes, which signify chemical reactions.
- Scenarios illustrating physical traits include dry hair and simple shape or color changes without altering the substance chemically.
- Chemical reactions often produce gas or heat, as seen in scenarios with bubbles or color shifts.
True/False Statements
- Evaporation, such as water transforming into gas, is recognized as a physical change.
- Burning wood is classified incorrectly as a physical change; it is chemical.
- Breaking concrete is a confirmed physical change since it doesn't alter its chemical structure.
- Mixing substances can lead to physical changes if no new products are created, while acid rain impacting marble represents a harmful chemical alteration.
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