Cecilia Bui
Quiz von , erstellt am more than 1 year ago

10th grade Chemistry Quiz am Ch. 1 Test, erstellt von Cecilia Bui am 10/01/2017.

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Cecilia Bui
Erstellt von Cecilia Bui vor fast 8 Jahre
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Ch. 1 Test

Frage 1 von 17

1

- the study of the processes that take place in organisms

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    biochemistry
    organic chemistry
    inorganic chemistry
    physical chemistry
    analytical chemistry

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Frage 2 von 17

1

- concerned with the mechanism, rate, and energy transfer that occurs when matter undergoes a change

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    physical chemistry
    analytical chemistry
    biochemistry
    organic chemistry

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Frage 3 von 17

1

- the study of the composition of matter

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    analytical chemistry
    physical chemistry
    biochemistry
    organic chemistry

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Frage 4 von 17

1

Which field of science studies the composition and structure of matter?

Wähle eine der folgenden:

  • physics

  • biology

  • chemistry

  • geology

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Frage 5 von 17

1

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

Wähle eine der folgenden:

  • bio

  • inorganic

  • physical

  • analytical

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Frage 6 von 17

1

Which of the following would a chemist be most likely to study?

Wähle eine der folgenden:

  • a leaf floating on water

  • a leaf changing color in autumn

  • a leaf being blown by the wind

  • a leaf sinking in water

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Frage 7 von 17

1

Which of the following statements is false?

Wähle eine der folgenden:

  • Knowledge of chemistry allows the public to make informed decisions.

  • Studying chemistry ensures that officials make correct choices in funding technology.

  • Knowledge of chemistry helps prepare people for careers in soil science.

  • Chemistry explains many aspects of nature.

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Frage 8 von 17

1

After developing a plan, effective problem solving always involves doing what with that plan?

Wähle eine der folgenden:

  • evaluating it

  • implementing it

  • analyzing it

  • doing calculations

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Frage 9 von 17

1

A central concept of the kinetic theory, one of the "big ideas" of chemistry, is the belief that

Wähle eine der folgenden:

  • for every reaction there is an equal and opposite reaction.

  • chemical reactions involve processes in which reactants produce products.

  • the particles in matter are in a state of constant motion.

  • every chemical process uses or produces energy, often in the form of heat.

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Frage 10 von 17

1

Which of the following was a major contribution to chemistry by Antoine Lavoisier?

Wähle eine der folgenden:

  • He showed that oxygen is required for material to burn.

  • He demonstrated the presence of phlogiston in air.

  • He encouraged scientists to form explanations based on philosophical arguments.

  • He developed the science of alchemy.

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Frage 11 von 17

1

In a chemical reaction, the type of products obtained is largely determined by which part of the reacting chemicals?

Wähle eine der folgenden:

  • protons

  • electrons

  • neutrons

  • nuclei

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Frage 12 von 17

1

A theory is a ___.

Wähle eine der folgenden:

  • proposed explanation for an observation

  • well-tested explanation for a broad set of observations.

  • summary of the results of many observations

  • procedure used to test a proposed explanation

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Frage 13 von 17

1

The variable that is observed during an experiment is called what type of variable?

Wähle eine der folgenden:

  • independent

  • manipulated

  • controlling

  • responding

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Frage 14 von 17

1

Collaboration and communication are very important in a science because __.

Wähle eine der folgenden:

  • most research problems are not very complex.

  • most scientists have the knowledge to solve any scientific problem.

  • they increase the likelihood of a successful outcome.

  • they keep scientists from having to repeat experiments.

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Frage 15 von 17

1

Which of these steps should always be followed for effective problem solving?

Wähle eine der folgenden:

  • buying a larger quantity of material than estimated

  • performing metric conversions

  • developing a plan and then implementing the plan

  • using a trial-and-error approach then evaluating

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Frage 16 von 17

1

The step that usually comes last in solving numeric problems is __.

Wähle eine der folgenden:

  • calculate

  • measure

  • evaluate

  • analyze

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Frage 17 von 17

1

How do conceptual problems differ from numeric problems?

Wähle eine der folgenden:

  • Solutions to conceptual problems involve analysis, while numeric solutions do not.

  • Logic is not usually involved in solving numeric problems.

  • A plan is necessary to solve numeric problems, but is not necessary for conceptual problems.

  • Solutions to conceptual problems normally do not involve calculations.

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