8.p.1.3 EOG Style
7 days ago
jeverhart_09577
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  • Question 1
    900 seconds
    Q.

    Two identical containers each hold one liter of water. One container is kept at room temperature as a liquid. The other container is placed in a freezer and kept as a solid. Which property is MOST likely to be the same in both states of matter?

    answer choices

    density

    mass

    shape

    volume

  • Question 2
    900 seconds
    Q.

    Using a closed system, a student heats 100 milliliters (mL) of distilled water in a flask. The steam from the water is captured, cooled, and condensed as shown in the diagram. How much water is MOST likely collected?

    answer choices

    1mL

    10mL

    100mL

    110mL

  • Question 3
    900 seconds
    Q.

    A student wrapped a wire around an iron nail and connected the wire to a battery. The nail became magnetized, as shown in Diagram 1. When the battery was disconnected, the nail was no longer magnetized, as shown in Diagram 2. Which statement BEST describes what occurred during this investigation?

    answer choices

    A new property was acquired when the nail became magnetized and caused a chemical change in the nail.

    When the nail became magnetized the iron atoms in the nail were temporarily aligned and caused a physical change.

    The electric current passing through the wires heated the nail and caused the nail to undergo a chemical change.

    The electric current passing through nail temporarily changed the iron atoms into another substance and caused a physical change.

  • Question 4
    900 seconds
    Q.

    The drawing shows solid carbon dioxide changing into carbon dioxide gas. Which statement describes the relationship between the solid carbon dioxide and the carbon dioxide gas after all of the solid has changed to gas?

    answer choices

    They have the same volume

    The gas has less volume than the solid

    The gas has less mass than the solid

    They have the same mass

  • Question 5
    900 seconds
    Q.

    A group of students observed the formation of bubbles when water boiled. What happened to matter because of the physical change to the water?

    answer choices

    New matter was created in the bubbles.

    Old matter was destroyed as the water turned to gas.

    Matter was conserved when it changed form.

    The composition of the matter changed.

  • Question 6
    900 seconds
    Q.

    This general chemical equation shows an example of energy availability in a theoretical reaction. Which statement is true about the equation?

    answer choices

    Energy was released.

    The equation is missing reactants.

    Energy was absorbed.

    The equation is missing products.

  • Question 7
    900 seconds
    Q.

    During photosynthesis, carbon dioxide and water combine according to the general equation:


    Why is photosynthesis a chemical reaction?

    answer choices

    because new substances are formed

    because an input of energy is required

    because the reactants are compounds

    because the products include an element

  • Question 8
    900 seconds
    Q.

    A student kept a notebook during an investigation. Which recorded observation was MOST likely a physical change?

    answer choices

    frying an egg

    baking a cake

    toasting bread

    melting butter

  • Question 9
    900 seconds
    Q.

    John and Lisa collected a sample of ocean water and placed it in a jar. Within a couple of days, the water had evaporated and salt was visible at the bottom of the jar. This is an example of a

    answer choices

    physical change

    chemical change

    solute being dissolved

    a new substance being fromed

  • Question 10
    900 seconds
    Q.

    A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?

    answer choices

    the acid and powder formed a new product.

    The acid boiled when poured into the beaker.

    A physical reaction produced a gas mixture.

    A reaction occurred that produced heat.

  • Question 11
    900 seconds
    Q.

    As part of a study, a scientist observed a number of different molecular changes in matter. Which of the following observations provides evidence of a physical change?

    answer choices

    only a physical change occurred.

    only a loss of mass occurred

    a chemical change occurred.

    the formation of an element occurred.

  • Question 12
    900 seconds
    Q.

    Students performed an investigation on how aluminum cans taken to a recycle center were able to be reused. They found out an aluminum can undergoes which type of change?

    answer choices

    a physical change because the can is heated

    a chemical change because new metal is formed

    a chemical change because an old can is changed into a new can

    a physical change because the material remains the same

  • Question 13
    900 seconds
    Q.

    Mixing baking soda and vinegar makes the temperature of the solution decrease and release carbon dioxide. Which conclusion about this investigation is NOT valid?

    answer choices

    Mixing the chemicals caused them to absorb heat.

    New elements were formed.

    A chemical reaction took place.

    The procedure caused a gas to be formed.

  • Question 14
    900 seconds
    Q. What is needed to change ice into water?
    answer choices
    air
    energy
    stirring
    chemicals
  • Question 15
    900 seconds
    Q. Which best represents a physical change?
    answer choices
    bubbling
    condensation
    formation of a precipitate
    formation of a new substance
  • Question 16
    900 seconds
    Q. Which best demonstrates a physical change?
    answer choices
    change in temperature
    formation of a gas
    change in state
  • Question 17
    900 seconds
    Q. What is the best evidence for a chemical reaction?
    answer choices
    color change
    cutting a metal
    change of state
  • Question 18
    900 seconds
    Q. When baking soda and vinegar react, the product includes bubbles. Whathas most likely occurred?
    answer choices
    gas formation
    exothermic reaction
    precipitate formation
  • Question 19
    900 seconds
    Q. What chemical reaction results in the formation of a solid?
    answer choices
    acid base reaction
    endothermic
    precipitate
  • Question 20
    900 seconds
    Q.

    When baking soda and vinegar react, the product includes bubbles. Whathas most likely occurred?

    answer choices

    gas formation

    exothermic reaction

    precipitate formation

  • Question 21
    30 seconds
    Q. What kind of properties can only be observed when a substance changes into a different substance?
    answer choices
    physical properties
    chemical properties
    liquid properties
    real properties
  • Question 22
    30 seconds
    Q. Is hammering wood together to build a house a chemical or physical change?
    answer choices
    chemical
    physical
  • Question 23
    30 seconds
    Q. Which of the following is NOT an example of a physical change?
    answer choices
    crumpled paper
    pencil sharpening
    shrunken clothing
    sour milk
  • Question 24
    60 seconds
    Q. Which is a chemical change?
    answer choices
    freezing fruit juice
    slicing a potato
    boiling water
    copper metal turning green
  • Question 25
    900 seconds
    Q. what is burning?
    answer choices
    physical change
    physical property
    chemical change
    chemical property
  • Question 26
    900 seconds
    Q. a rusting bicycle
    answer choices
    physical change
    chemical change
  • Question 27
    900 seconds
    Q. One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
    answer choices
    evaporation; chemical change
    condensation; physical change 
    evaporation; physical change
    condensation; chemical change
  • Question 28
    900 seconds
    Q. hydrochloric acid reacts with magnesium to produce hydrogen gass
    answer choices
    physical change
    chemical change
  • Question 29
    900 seconds
    Q.

    A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?

    answer choices

    the acid and powder formed a new product.

    The acid boiled when poured into the beaker.

    A physical reaction produced a gas mixture.

    A reaction occurred that produced heat.

  • Question 30
    900 seconds
    Q.

    Mixing baking soda and vinegar makes the temperature of the solution decrease and release carbon dioxide. Which conclusion about this investigation is NOT valid?

    answer choices

    Mixing the chemicals caused them to absorb heat.

    New elements were formed.

    A chemical reaction took place.

    The procedure caused a gas to be formed.

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