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    jocelyn has 400 pounds of chemical a that she must react with 200 pounds of chemical b to create chemical c for use in an industrial manufacturing process. how many pounds of chemical c will jocelyn have after the reaction is complete?

    James

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    get jocelyn has 400 pounds of chemical a that she must react with 200 pounds of chemical b to create chemical c for use in an industrial manufacturing process. how many pounds of chemical c will jocelyn have after the reaction is complete? from EN Bilgi.

    Chem lesson 1 Flashcards

    Start studying Chem lesson 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

    Chem lesson 1

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    The mass of an object can be found by comparing its weight to an object whose mass is known.

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    Which of the following statements is true of mass?

    -Mass is usually measured with a spring scale.

    -Mass is expressed in pounds or Newtons.

    -The mass of an object depends on the force of gravity acting on it.

    -The mass of an object can be found by comparing its weight to an object whose mass is known.

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    chromatography

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    A student places ink on filter paper and puts it in a beaker of alcohol. The ink travels across the filter paper. This is an example of what kind of separation technique?

    -chromatography -filtration -crystallization -distillation

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    1/30 Created by kylesrose

    Terms in this set (30)

    The mass of an object can be found by comparing its weight to an object whose mass is known.

    Which of the following statements is true of mass?

    -Mass is usually measured with a spring scale.

    -Mass is expressed in pounds or Newtons.

    -The mass of an object depends on the force of gravity acting on it.

    -The mass of an object can be found by comparing its weight to an object whose mass is known.

    chromatography

    A student places ink on filter paper and puts it in a beaker of alcohol. The ink travels across the filter paper. This is an example of what kind of separation technique?

    -chromatography -filtration -crystallization -distillation Al and HCl

    What are the reactants in the following equation?

    2Al + 6HCl → 2AlCl3 + 3H2

    AlCl3 and HCl Al and HCl Al and H2 AlCl3 and H2 50 g

    According to the law of conservation of mass, how much HCl is consumed in the following reaction?

    (32 g) + (?) → (64 g) + (18 g)

    2Al + 6HCl → 2AlCl3 + 3H2

    17 g 45 g 50 g 82 g

    in the periodic table of elements

    In which of the following are all known chemical elements organized into groups based on similar chemical properties?

    in the chart of isotopes

    in the periodic table of elements

    in the chemical chart

    none of the above 179 g

    When 145 g of iron reacts with 34 g of oxygen gas to form iron (II) oxide, no iron or oxygen is left over. How much iron (II) oxide is produced?

    179 g 159 g 111 g 34 g a chemical change

    Is iron rusting a physical or a chemical change?

    a physical change a chemical change

    A leaf changes color in the fall.

    In which of the following examples does a chemical change occur?

    A leaf changes color in the fall.

    Ethanol is purified through distillation.

    Salt deposits form from evaporated seawater.

    Dissolved minerals solidify to form a crystal.

    a physical change

    Is cutting paper a physical or a chemical change?

    a physical change a chemical change air

    Which of the following is an example of a homogeneous mixture?

    raw milk air marble orange juice

    A glue gun melts a glue stick.

    In which of the following examples does a physical change occur?

    A peach spoils.

    A glue gun melts a glue stick.

    A bracelet turns your wrist green.

    A silver bowl tarnishes.

    AlCl3 and H2

    What are the products in the following equation?

    2Al + 6HCl → 2AlCl3 + 3H2

    AlCl3 and HCl AlCl3 and H2 Al and H2 Al and HCl granite

    Which of the following is a heterogeneous mixture?

    seawater a gold ring sucrose granite burning

    Which of the following is not a physical change?

    burning boiling cutting grinding

    It is higher at point A than at point C.

    Stewart is about to jump from the high dive. At point A, he is leaving the board, at point B, he is halfway to the water below, and at point C, he is about to reach the water. What is true of Stewart's potential energy?

    It is higher at point C than at point B.

    It is higher at point B than at point A.

    It is higher at point C than at point A.

    It is higher at point A than at point C.

    water

    Which of the following is a compound?

    water sodium oxygen magnesium 2889 pounds

    If your weight on earth is 107 pounds and the force of gravity on the sun is 27 times the gravity of the earth, what would your weight be on the sun?

    394 pounds 3.96 pounds 2889 pounds 71 pounds melting

    Which of the following is not a chemical change?

    burning melting rusting igniting a chemical change

    Is fruit fermenting a physical or a chemical change?

    a physical change a chemical change ...

    A student wants to separate a mixture of sand and water. Which separation technique would he or she use?

    crystallization chromatography distillation

    Distillation is not the correct kind of separation technique. Please review lesson 1, section 1.

    filtration saltwater

    Which of the following is a homogeneous mixture?

    saltwater granite

    Italian salad dressing

    vegetable soup

    a ball traveling at 60 mph

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    James 8 month ago
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