Study

Classifying Matter

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  • Describe how you would measure the volume of a regular object, for example, a box.
    L x W x H
  • A substance has a density of 1.50 g/mL and a mass of 76 g, what is its volume?
    51 mL
  • Classify the following matter: Sugar
    Eelement
    Heterogeneous Mixture
    Compound
    Homogeneous Mixture
  • Classify the following matter: Brass
    Heterogeneous Mixture
    Homogeneous Mixture
    Compound
    Element
  • If you heat up a substance, such as a gas, its volume will increase, what will happen to the density?
    The density of the substance would decrease.
  • Describe the difference between a homogeneous mixture and a heterogenous mixture.
    A homogeneous mixture is uniform throughout, while a heterogeneous mixture is different throughtout
  • All phase changes, such as boiling, condensing, melting, freezing, evaporating etc. are classified as
    Physical Changes
    Chemical Changes
  • Describe density.
    Density is described as the amount of matter (mass) in a certain volume
  • If the matter can be physically separated it is classified as this
    Mixture
  • A substance has a mass of 25.0 g and a volume of 32.25 mL, what is the substance's density?
    .775 g/mL
  • Describe the difference between a Physical and Chemical PROPERTY
    A physical property can be observed WITHOUT altering the substance, while a chemical property is observed during a chemical reaction
  • Soil
    Pure Substance
    Mixture
  • Which of the following is NOT a chemical change?
    Boiling
    Rusting
    Combusting
    Baking
  • Water
    Mixture
    Pure Substance
  • Salt
    Mixture
    Pure Substance
  • Classify the following matter: Salt Water
    Heterogeneous Mixture
    Compound
    Element
    Homogeneous Mixture
  • Oxygen
    Mixture
    Pure Substance
  • A substance has a density of 1.25 g/mL and a volume of 34 mL, what is its mass?
    43 g
  • Air
    Pure Substance
    Mixture
  • State the Law of Conservation of Matter
    Matter can neither be created nor destroyed, only transformed
  • If you cool down a substance, such as a gas, its volume will decrease, what will happen to the density?
    The density of the substance will increase.
  • A substance has a volume of 224 mL and a mass of 10.15 g, what is the substance's density?
    .045 g/mL
  • Which of the following is NOT a chemical property?
    Combustibility
    Conductivity
    Flammability
    Toxicity
  • Describe the difference between a Physical and Chemical CHANGE
    A physical change is a change in matter that does NOT alter the chemical composition of the substance, while a chemical change results in a NEW substance
  • List 3 Extensive Properties
    Mass, Volume, Energy
  • Classify the following matter: Chocolate Chip Cookies
    Compound
    Homogeneous Mixture
    Heterogeneous Mixture
    Element
  • Classify the following matter: Aluminum
    Homogeneous Mixture
    Heterogeneous Mixture
    Compound
    Element
  • Steel
    Mixture
    Pure Substance
  • Describe the difference between an element and a compound.
    An element is matter that can not be chemically separated any more, a compound is two or more elements bonded together
  • Concrete
    Pure Substance
    Mixture
  • Classify the following matter: Salad Dressing
    Heterogeneous Mixture
    Compound
    Element
    Homogeneous Mixture
  • Classify the following matter: Air
    Element
    Homogeneous Mixture
    Compound
    Heterogeneous Mixture
  • Mixtures involving a solute and solvent are special homogeneous mixtures called
    Solutions
  • Describe how you would measure the volume of an irregular object.
    Describe the process of water displacement
  • What is the difference between a pure substance and a mixture?
    A mixture can be separated by physical means while a pure substance cannot.
  • What is the formula for calculating density?
    d = m/v
  • Describe the difference between Intensive and Extensive Properties
    Intensive properties depend on the type of matter in a sample, while Extensive properties depend on the amount of matter in the sample
  • Mixture of metals are special homogeneous mixtures called
    Alloys
  • Classify the following matter: Coffee
    Homogeneous Mixtures
    Element
    Heterogeneous Mixtures
    Compound
  • All of the following are signs that a chemical reactions took place, EXCEPT
    Change in State of Matter
    Change in Color
    Change in Temperature
    Change in Odor
  • What is the formula for calculating volume, given the density and mass?
    v = m/d
  • Baking Soda
    Mixture
    Pure Substance
  • Which of the following is NOT a physical property?
    Luster
    Reactivity
    Melting Point
    Freezing Point
  • List 3 Intensive Properties
    Any 3 Intensive Properties will be accepted
  • What is the formula for mass, given the density and the volume?
    m = d x v