STLCC CHM 101 - Exam #1 Saint Louis Community College |
UPDATED Questions with 100% Verified Answers
Question:
Can you hold/touch something without chemicals?
Answer:
No. There is nothing you can hold or touch that is not made of chemicals
Question:
Define 'Chemistry'
Answer:
Chemistry is the science that seeks to understand what matter does by studying what
atoms and molecules do
Question:
Define 'Scientific Method'
Answer:
The Scientific Method is a way of learning that emphasizes observation and
experimentation to understand the world
Question:
Define 'Observation'
Answer:
An Observation is a chemical behavior that is experienced with the senses or with a
special device designed to make measurements of chemical behavior
Question:
Define 'Hypothesis'
Answer:
A Hypothesis is a tentative interpretation or explanation of observations. by experiments
Question:
Define 'Experiments'
, Answer:
Experiments are highly controlled observations designed to validate or invalidate
hypotheses
Question:
What is the law of conservation of mass?
Answer:
It states that in a chemical reaction, matter is neither created nor destroyed
Question:
Who developed the law of conservation of mass?
Answer:
Lavoisier
Question:
Define 'Theory'
Answer:
A Theory provides a broader and deeper explanation for observations and laws
Question:
What is the atomic theory?
Answer:
The Atomic Theory explains the law of conservation of mass, as well as other laws and
observations, by proposing that all matter is composed of small, indestructible particles
called atoms
Question:
What are all things made of?
Answer:
Atoms and molecules
Question:
When rounding the sig figs on the answer to an addition or
subtraction problem, what do you round to?
UPDATED Questions with 100% Verified Answers
Question:
Can you hold/touch something without chemicals?
Answer:
No. There is nothing you can hold or touch that is not made of chemicals
Question:
Define 'Chemistry'
Answer:
Chemistry is the science that seeks to understand what matter does by studying what
atoms and molecules do
Question:
Define 'Scientific Method'
Answer:
The Scientific Method is a way of learning that emphasizes observation and
experimentation to understand the world
Question:
Define 'Observation'
Answer:
An Observation is a chemical behavior that is experienced with the senses or with a
special device designed to make measurements of chemical behavior
Question:
Define 'Hypothesis'
Answer:
A Hypothesis is a tentative interpretation or explanation of observations. by experiments
Question:
Define 'Experiments'
, Answer:
Experiments are highly controlled observations designed to validate or invalidate
hypotheses
Question:
What is the law of conservation of mass?
Answer:
It states that in a chemical reaction, matter is neither created nor destroyed
Question:
Who developed the law of conservation of mass?
Answer:
Lavoisier
Question:
Define 'Theory'
Answer:
A Theory provides a broader and deeper explanation for observations and laws
Question:
What is the atomic theory?
Answer:
The Atomic Theory explains the law of conservation of mass, as well as other laws and
observations, by proposing that all matter is composed of small, indestructible particles
called atoms
Question:
What are all things made of?
Answer:
Atoms and molecules
Question:
When rounding the sig figs on the answer to an addition or
subtraction problem, what do you round to?
