Exam (elaborations)
CHEM 101-Straighterline Exam 1 With Complete Solution 100% Verified.
- Course
- Institution
CHEM 101-Straighterline Exam 1 With Complete Solution 100% Verified.
[Show more]
Seller
Follow
Wisdoms
Reviews received
Content preview
CHEM 101-Straighterline Exam 1 With CompleteSolution 100% Verified
A substance in which the atoms or molecules are free to move relative to one another. It always
assumes the shape and volume of its container. - Correct Answer - gas
A substance in which the atoms or molecules pack closer than a gas, but are still able to freely move
relative to one another. It exhibits a fixed volume, but not a fixed shape. - Correct Answer - liquid
A substance in which the atoms or molecules are fixed at a specific position. It exhibits a fixed volume
and rigid shape. - Correct Answer - solid
A solid that has atoms and molecules in a repeatable pattern. - Correct Answer - crystalline solid
A solid whose atoms or molecules are not arranged in a specific pattern. - Correct Answer - amorphous
solid
A substance does not vary its composition within the substance nor between samples of the same
substance. - Correct Answer - pure substance
A physical combination of substances in which each substance keeps its own physical and chemical
properties. - Correct Answer - mixture
A physical combination of substances of non-uniform composition. - Correct Answer - heterogeneous
mixture
A physical combination of substances of uniform composition. - Correct Answer - homogeneous mixture
A pure substance that cannot be broken into component parts. Examples include helium, nitrogen, and
oxygen. - Correct Answer - element
A pure substance made up of two or more elements. - Correct Answer - compound
A quantitative observation. - Correct Answer - measurement
Any division of a quantity that may be used in a measurement. - Correct Answer - unit
, The SI unit for length. - Correct Answer - meter
The SI unit for time. - Correct Answer - second
The SI unit for mass. - Correct Answer - kilogram
The standard unit of measurement used to count atoms. - Correct Answer - mole
A unit system abbreviated as SI that is used by scientists. - Correct Answer - International System of
Units
A unit system of measurement used throughout the world. - Correct Answer - metric system
A unit system of measurement mainly used in the United States. - Correct Answer - english system
Changes the SI unit by a power of 10. - Correct Answer - prefix multiplier
An English temperature unit system used mainly in the United States. - Correct Answer - fahrenheit
A combination of SI units. - Correct Answer - derived units
A metric temperature unit system used throughout the world. - Correct Answer - celsius
A derived unit defined as mass/volume. - Correct Answer - density
A property that does not depend on the amount of a substance. - Correct Answer - intensive property
A property that depends on the amount of a substance. - Correct Answer - extensive property
A measurement that is repeatable in an experimental setup, within an acceptable range of error. -
Correct Answer - reliable measurements
How close a series of measurements are to each other. - Correct Answer - precision
How close a series of measurements are to the actual value. - Correct Answer - accuracy
A non-place-holding digit in any numerical measurement. - Correct Answer - significant digit
Rounding numerical data to the nearest power of 10 for rapid estimated calculations. - Correct Answer -
order-of-magnitude estimation
The force that holds atoms together in molecules and materials. - Correct Answer - chemical bond
A bond between two or more atoms in which the electrons are shared. - Correct Answer - covalent
bond
A bond between two or more atoms in which the electrons reside primarily in one atom. - Correct
Answer - ionic bond
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82191 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now