law of multiple proportions

when 2 elements combine it can be expressed as whole# ratios

law of conservation of mass =

in a chemical reaction, matter is not created or destroyed

What is an example of a heterogeneous mixture?

a bottle of sand and water sitting on the table

law of definite proportions =

a compound has the same proportions of elements

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atoms ch1

21 termsStudBud Administration58 plays

a #genchem quiz designed for the introductory chapter of Tro #chemistry book

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Questions 21

Answers

1
what is your major
engineering
biology / bio related
chemistry
other
2
what is atomic number (Z)
number of protons and neutrons
number of electrons
number of electrons and neutrons
number of protons
3
a particle with any charge is called...
ion
cation
anion
indifferent
4
how much algebra experience do you have
college
none
basic high school
advanced high school
5
what is at the center of an atom?
protons and electrons
protons
protons and neutrons
electons
6
are you going to procrastinate studying for your exams?
we have exams?
depends on the football schedule
yes!
no!
7
a positively charged particle =
cation
ion
caffeinated
anion
8
how comfortable do you feel asking your classmates chemistry questions
very
eh, maybe
never
unlikely
9
what would change in an atom to cause it to be a different element
number of neutrons
number of protons
spin
number of electrons
10
what is mass number (A)
number of electrons and neutrons
number of electrons
number of protons + neutrons
number of protons
11
law of multiple proportions
when 2 elements combine it can be expressed as whole# ratios
mass spectroscopy
in a chemical reaction, matter is not created or destroyed
a compound has the same proportions of elements
12
what changes in an element to make it an isotope
spin
number of protons
number of electons
number of neutrons
13
how do we measure the masses of atoms and abundance% of elements
relative abundance
dalton's calculation
mass spectrometry
smartness
14
how comfortable do you feel asking your TA questions?
never
eh, maybe
unlikely
very
15
law of conservation of mass =
when 2 elements combine it can be expressed as whole# ratios
in a chemical reaction, matter is not created or destroyed
mass spectroscopy
a compound has the same proportions of elements
16
What is an example of a heterogeneous mixture?
an overly priced Starbucks latte
a bottle of sand and water sitting on the table
a bottle of sand and water being shaken
17
what distinguishes atoms according to the atomic theory
mass
size
binding
shape
18
how is atomic mass calculated
some overly complicated math thing
mass of protons
random guesswork
average mass of isotopes
19
a negatively charged particle =
grumpy
cation
ion
anion
20
how much experience with chemistry do you have
high school AP
high school general
some college chemistry
none
21
law of definite proportions =
when 2 elements combine it can be expressed as whole# ratios
mass spectroscopy
a compound has the same proportions of elements
in a chemical reaction, matter is not created or destroyed

atoms ch1 Flashcards | StudBud