Ch. 1 Test

Descrição

10th grade Chemistry Quiz sobre Ch. 1 Test, criado por Cecilia Bui em 10-01-2017.
Cecilia Bui
Quiz por Cecilia Bui, atualizado more than 1 year ago
Cecilia Bui
Criado por Cecilia Bui quase 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
[blank_start]biochemistry[blank_end] - the study of the processes that take place in organisms
Responda
  • biochemistry
  • organic chemistry
  • inorganic chemistry
  • physical chemistry
  • analytical chemistry

Questão 2

Questão
[blank_start]physical chemistry[blank_end] - concerned with the mechanism, rate, and energy transfer that occurs when matter undergoes a change
Responda
  • physical chemistry
  • analytical chemistry
  • biochemistry
  • organic chemistry

Questão 3

Questão
[blank_start]analytical chemistry[blank_end] - the study of the composition of matter
Responda
  • analytical chemistry
  • physical chemistry
  • biochemistry
  • organic chemistry

Questão 4

Questão
Which field of science studies the composition and structure of matter?
Responda
  • physics
  • biology
  • chemistry
  • geology

Questão 5

Questão
The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?
Responda
  • bio
  • inorganic
  • physical
  • analytical

Questão 6

Questão
Which of the following would a chemist be most likely to study?
Responda
  • a leaf floating on water
  • a leaf changing color in autumn
  • a leaf being blown by the wind
  • a leaf sinking in water

Questão 7

Questão
Which of the following statements is false?
Responda
  • 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.

Questão 8

Questão
After developing a plan, effective problem solving always involves doing what with that plan?
Responda
  • evaluating it
  • implementing it
  • analyzing it
  • doing calculations

Questão 9

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

Questão 10

Questão
Which of the following was a major contribution to chemistry by Antoine Lavoisier?
Responda
  • 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.

Questão 11

Questão
In a chemical reaction, the type of products obtained is largely determined by which part of the reacting chemicals?
Responda
  • protons
  • electrons
  • neutrons
  • nuclei

Questão 12

Questão
A theory is a ___.
Responda
  • 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

Questão 13

Questão
The variable that is observed during an experiment is called what type of variable?
Responda
  • independent
  • manipulated
  • controlling
  • responding

Questão 14

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

Questão 15

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

Questão 16

Questão
The step that usually comes last in solving numeric problems is __.
Responda
  • calculate
  • measure
  • evaluate
  • analyze

Questão 17

Questão
How do conceptual problems differ from numeric problems?
Responda
  • 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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