Exam (elaborations)
CHEM 120 Exam 1-Questions with Correct Answers/ Verified/ Latest Update (2024/2025
- Course
- Institution
CHEM 120 Exam 1-Questions with Correct Answers/ Verified/ Latest Update (2024/2025)
[Show more]
Content preview
CHEM 120 Exam 1-Questions with Correct Answers/ Verified/Latest Update (2024/2025)
compound - ✔✔pure substance made of two or more elements chemically joined together
h2o, penicillin, nacl - ✔✔examples of compounds
physical combination of 2 or more substances (elements and compounds) - ✔✔define
mixture
homogenous and heterogenous - ✔✔2 types of mixtures
components - ✔✔mixtures can be separated into different __________
mixture - ✔✔almost everything is a ______
solution - ✔✔another name for homo mixture
same composition throughout - ✔✔define homo mixture
salt dissolved in water - ✔✔example of homo mixture
not uniform composition and varies throughout - ✔✔define hetero mixture
hetero mixture - ✔✔mix of metals is a ____
homo mix - ✔✔classify matter: coffee
homo mix - ✔✔classify matter: water
,pure substance element - ✔✔classify matter: radon
hetero mix - ✔✔classify matter: egg
hetero mix - ✔✔classify matter: wood
conducts electricity, shiny, ductile, malleable, solid at room temp - ✔✔define metals
mercury Hg - ✔✔metal that is liquid at room temp
brittle when solid, various phases and colors (solid, liquid, and gas) - ✔✔define nonmetals
carbon, phosphorous, sulfur - ✔✔3 examples of nonmetals
varying properties of metals and nonmetals - ✔✔describe semimetals or metalloids
boron (b), silicon (si), germanium (ge) - ✔✔3 examples of metalloids
metalloid - ✔✔b, si, ge, as, sb, te, po, at (8 total)
metals - ✔✔
nonmetals - ✔✔
hetero mix - ✔✔Italian dressing contains olive oil and vinegar, which will separate out from
each other if left to sit. This makes the dressing a:
mixture - ✔✔A bar of soap is an example of a(n)
, compound - ✔✔A deicing agent, calcium chloride, is an example of a(n)
element - ✔✔A gold bar is an example of a(n)
hetero mix - ✔✔A human is an example of a(n)
element - ✔✔An iron nail is an example of a(n)
solution - ✔✔Gasoline is composed of a variety of different liquid hydrocarbons, which do
not separate as time passes. Gasoline is an example of a:
mixture - ✔✔Apple juice is an example of a(n)
c - ✔✔Which of the following describes a chemical change involving water?
a. h2o (l)--- h2o (s)
b. h2o(s)--- h2o(g)
c. h2o(l)-- h2(g) + 1/2o2(g)
d. h2o(g)---- h2o(l)
flammability - ✔✔which of the following are chem props of matter?
a. mass
b. volume
c. density
d. flammability
c - ✔✔Which of the following is a physical change?
A. An alkaline battery is discharged.
B. A lithium-ion battery is recharged.
C. Water is boiled in a microwave.
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 MikeHarris. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75759 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now