Physical Properties of Matter

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Questions and Answers

Is blue color a physical or chemical property?

  • Physical (correct)
  • Chemical

Is density a physical or chemical property?

  • Physical (correct)
  • Chemical

Is flammability a physical or chemical property?

  • Physical
  • Chemical (correct)

Is solubility a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is reacting with acid a physical or chemical property?

<p>Chemical (A)</p> Signup and view all the answers

Does supports combustion refer to a physical or chemical property?

<p>Chemical (A)</p> Signup and view all the answers

Is sour taste a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is melting point a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is reacting with water a physical or chemical property?

<p>Chemical (B)</p> Signup and view all the answers

Is hardness a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is boiling point a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is luster a physical or chemical property?

<p>Physical (A)</p> Signup and view all the answers

Is odor a physical or chemical property?

<p>Physical (B)</p> Signup and view all the answers

Is reacting with air a physical or chemical property?

<p>Chemical (B)</p> Signup and view all the answers

Does NaCl (table salt) dissolving in water represent a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is Ag (silver) tarnishing a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

Is cutting an apple a physical or chemical change?

<p>Physical (A)</p> Signup and view all the answers

Is heating water to convert it to steam a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Does baking soda reacting with vinegar result in a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is rusting of Fe (iron) a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is the evaporation of alcohol a physical or chemical change?

<p>Physical (A)</p> Signup and view all the answers

Is ice melting a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is milk souring a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

Is sugar dissolving in water a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is wood rotting a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

Is cooking pancakes a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is grass growing a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

Is inflating a tire a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is water absorption by a paper towel a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is an ice cube melting in the sun a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Does mixing two chemicals producing gas indicate a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is a bicycle changing color as it rusts a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is crushing a solid to a powder a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Do two substances mixing and producing light indicate a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is an ice cube melting and reacting with sodium a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

Is mixing salt and pepper a physical or chemical change?

<p>Physical (A)</p> Signup and view all the answers

Is dissolving chocolate syrup in milk a physical or chemical change?

<p>Physical (B)</p> Signup and view all the answers

Is toasting a marshmallow over a campfire a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

Is cutting a marshmallow in half a physical or chemical change?

<p>Physical (A)</p> Signup and view all the answers

In Scenario 1, is it a chemical, physical or both when the bread is hot and changes size?

<p>Both (A)</p> Signup and view all the answers

In Scenario 2, is turning black a chemical or physical change in bread?

<p>Chemical (A)</p> Signup and view all the answers

In Scenario 3, does a color change indicate a chemical or physical change?

<p>Chemical (B)</p> Signup and view all the answers

In Scenario 4, is having dry hair a chemical or physical change?

<p>Physical (A)</p> Signup and view all the answers

In Scenario 5, when bubbles and CO2 expansion occur, does this indicate a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

In Scenario 6, is a color change indicative of a physical or chemical change?

<p>Chemical (A)</p> Signup and view all the answers

In Scenario 7, is a shape change a chemical or physical change?

<p>Physical (A)</p> Signup and view all the answers

In Scenario 8, does a color change imply a chemical or physical change?

<p>Physical (A)</p> Signup and view all the answers

In Scenario 9, is the size change and hormone reaction a physical or chemical change?

<p>Chemical (B)</p> Signup and view all the answers

In Scenario 10, does a change of natural state indicate a chemical or physical change?

<p>Chemical (A)</p> Signup and view all the answers

Changing the size and shapes of pieces of wood would be a chemical change.

<p>False (B)</p> Signup and view all the answers

In a physical change, the makeup of matter is changed.

<p>False (B)</p> Signup and view all the answers

Evaporation occurs when the liquid water changes into a gas.

<p>True (A)</p> Signup and view all the answers

Evaporation is a physical change.

<p>True (A)</p> Signup and view all the answers

Burning wood is a physical change.

<p>False (B)</p> Signup and view all the answers

Combining hydrogen and oxygen to make water is a physical change.

<p>False (B)</p> Signup and view all the answers

Breaking up concrete is a physical change.

<p>True (A)</p> Signup and view all the answers

Sand being washed out to sea from the beach is a chemical change.

<p>False (B)</p> Signup and view all the answers

When ice cream melts, a chemical change occurs.

<p>False (B)</p> Signup and view all the answers

Acid rain damaging a marble statue is a physical change.

<p>False (B)</p> Signup and view all the answers

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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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