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CDF Chemistry Study Guide
The most reactive element is
A+BC--> B+ AC is a
CDF Chemistry Study Guide
36 terms
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chemistry honors review
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1
A+BC--> B+ AC is a
triple displacement
double displacement
single replacement
double replacement
2
The most reactive element is
Li
O
N
He
3
Which of these are false?
periods: all elements have the same chem behaviors
groups : all elements have the same e- in the same shell
The period table is based off periods and groups
all of them are true
4
What does MINOH stand for?
metals, ions, non-molecular, oxygen, hydrogen
metals, ions, nonmetals, oxygen, hydrogen
MINOH is not a thing
methane, iodine, nitrogen, oxygen, hydrogen
5
What is an elements atomic number?
the number of electrons in its nucleus
the number of protons in its nucleus
the mass of the element
the number of things it can bond with
6
Empirical formulas are the simplest______ ratio of atoms in a compound.
quarter-number
half-number
one fifth- number
whole-number
7
What do all organic compounds contain?
vinegar
water
carbon atoms
nitrogen
8
To show the conservation of mass we use___
metals
oxygen
math
coefficients
9
What is a cation?
a positively charged ion
a charged atom or molecule
a negatively charged ion
something that speeds up the reaction
10
What are the three intermolecular bonds ?
covalent, hydrogen, valence
ionic, covalent, metallic
non-metal, metal, covalent
metallic, covalent, hydrogen
11
an ionic compound that has a specific number of H20 molecules bound to it is a ___
gas
atom
sodium
hydrate
12
Which is not one of the three subatomic particles?
protons
neutrons
bonds
electrons
13
When the solubility of a compound will increase as temperature increases it is referred to as
dissolution
solubility curve
solute
saturated solution
14
_______ rearranges molecules but doesn't affect their internal structures.
physical change
chemical change
15
All compounds are molecules but not all molecules are compounds.
true
false
16
Anything that occupies space and has mass is ____.
matter
energy
weight
mass
17
Mass cannot be created or destroyed.
true
false
18
A element or compound that reacts with oxygen, producing heat and light is called______.
bonding
catalyst
combustion
decomposition
19
What is the name of chemistry that is dedicated to the study of compounds that contain carbon?
basic chemistry
nonorganic chemistry
organic chemistry
carbon chemistry
20
The thing that is being measured in the experiment is called the _____
repetition
independent variable
control group
dependent variable
21
A substance in the solid, liquid or gaseous state
(aq)
heat-->
-->
(l), (s), (g)
22
________ is any change that results in the formation of new chemical substances.
physical change
gay- lussacs law
chemical change
daltons law
23
HOH is
helium and water written in single displacement
iron written in single displacement
hydrogen written in abreviation
H20 written in single displacement
24
A substance used in a reaction to speed it up is a
reaction
ion
neutralization
catalyst
25
Ionic bonding occurs with_____.
only elements in the 1st row
2 or more non metals
metallic ions bonding together
metals and non metals
26
Valence electrons are the ______.
outer shell electrons
is neither
inner-shell electrons
can be both
27
Which of these has the highest level of viscosity?
oil
ketchup
water
milk
28
A compound is an element of two or more different elements.
false
true
29
______ occur because of the instability in the nuclear geometry of an atom.
nuclei split
nuclear reactions
ion reaction
element reaction
30
The greater the energy,
the greater the frequency, and the greater the wavelength
the greater the frequency, and smaller the wavelength
the smaller the frequency, and smaller the wavelength
the smaller the frequency, and greater the wavelength
31
In PV=nRt , if P is in kPa _____.
R=0.0821
R= 3.14
R=1
R=8.314
32
Elements that have 1 valence (group 1) are___
do not react
stay neutral
highly reactive
react very low
33
Which is the first step in the empirical formula steps?
multiply by 2
Change % sign to grams
divide each element by atomic mass
Divide by the smallest number of moles
34
Elements in the _______ all have similar properties and behavior.
same group
different group
35
Hydrocarbon+02--> CO2+ H2O is a
combination
double replacement
decomposition
combustion
36
What is an anion?
a negatively charged ion
a water molecule
a catalyst
a positively charged ion
