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WorksheetsPS/ Chem MIdterm Vocab (MS)
Total questions: 56
Worksheet time: 28mins
an interpretation based on observations and prior knowledge.
Inference
Observation
Chemistry
Hypothesis
using one or more of your five senses to gather information.
Hypothesis
Manipulated variable
Element
Observation
an observation that deals with a number or an amount. Ex. A temperature increase of 5C.
Graph
Chemical Change
Quantitative observation
Qualitative Observation
an observation that deals with characteristics that are not expressed in numbers. Ex. The red apple
qualitative observation
quantitative observation
hypothesis
conclusion
the study of the properties of matter and the changes matter undergoes.
Biology
Astronomy
Physics
Chemistry
a possible explanation for a set of observations or an answer to a scientific question
Hypothesis
Conclusion
Independent Variable
Graph
The one factor that a scientist changes during an experiment.
manipulated/ independent variable
responding/ dependent variable
element
conclusion
The factor that changes as a result of changes to the manipulated variable in an experiment.
manipulated/ independent variable
hypothesis
responding/ dependent variable
conclusion
a diagram that shows how two variables are related
chemistry
physics
concluson
graph
states whether or not the data supports the hypothesis.
hypothesis
conclusion
graph
responding variable
anything that has mass and takes up space.
matter
element
compound
mixture
a pure substance that cannot be broken down into other substances by chemical or physical means.
molecule
compound
matter
element
a pure substance made of two or more elements chemically combined.
element
atom
compound
mixture
two or more substances that are near each other but not chemically combined.
matter
mixture
chemistry
compound
the ratio of the mass of a substance to its volume.
element
milliliter
density
gas
a change in a substance that does not change its identity.
compound
physical change
volume
chemical change
Physical Change
making a taco salad
burning paper
iodine test for starch
cooking eggs
a change in which one or more substances combine or break apart to form new substances.
kinetic energy
molecule
physical change
chemical change
Chemical change
iron heated to be red hot
leaves changing color
melting ice cube
ripping paper
energy as object has due to its motion
physics
potential energy
kinetic energy
chemical energy
a state of matter that has a definite shape and a definite volume.
solid
liquid
gas
plasma
What state of matter is this?
Solid
Liquid
Gas
Plasma
a state of matter that no definite shape but has a definite volume.
Solid
Liquid
Gas
Plasma
What state of matter is this?
Solid
Liquid
Gas
Plasma
a state of matter that has no definite shape or volume.
Solid
Liquid
Gas
Plasma
What state of matter is this?
Solid
Liquid
Gas
Plasma
Any change to matter where energy is absorbed
Endothermic
Exothermic
Physical Change
Chemical Change
Any change to matter where energy is released
Endothermic
Exothermic
Physical change
Chemical change
the phase change from a gas to a liquid state of matter.
freezing
melting
sublimation
condensation
the phase change from a liquid to a gas state of matter.
condensation
vaporization
melting
freezing
the phase change from a solid to a liquid state of matter
deposition
sublimation
melting
boiling
the phase change from a liquid to a solid state of matter.
evaporation
vaporization
deposition
freezing
the phase change from a solid directly to a gas without passing through the liquid state.
melting
sublimation
vaporization
condensation
the basic particle from which all elements are made
atom
molecule
density
quark
a horizontal row of elements in the periodic table.
group
valence
mendeleev
period
elements in the same vertical column of the periodic table.
Group
Period
Physics
Atomic mass
the number of protons in the nucleus of an atom.
same as the number of neutrons
same as the atomic number
same as the atomic mass
same as the number of isotopes
the average mass of all the isotopes of an element.
number of protons and electrons
number of protons
number of protons and neutrons
number of electrons and neutrons
a positively charged particle that is part of an atom’s nucleus.
proton
neutron
electron
quark
a small particle in the nucleus of an atom with no electrical charge.
proton
neutron
electron
quark
a negatively charged particle that is found outside the nucleus of an atom.
Proton
Neutron
Electron
Quark
electrons in the outermost energy level used in bonding and chemical reactions.
tuna sandwich
bohrites
valence
ruthians
a substance that enters into a chemical reaction
Reactant
Product
Atom
Molecule
In this figure the Oxygen is:
Reactant
Product
Coefficient
Subscript
In this reaction, the Carbon Dioxide is the
Reactant
Product
Coefficient
Subscript
a substance formed as a result of a chemical reaction
Reactant
Product
Atom
Molecule
a number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
Reactant
Product
Coefficient
Subscript
The 2 next to the hydrogen is a
subscript
coefficient
atomic number
valence number
What do the two lines between the C and O represent?
Valence number for Carbon
A pair of electrons being shared
Two pairs of shared electrons
The number of valence electrons for oxygen
Given the structural formula, what is the correct molecular formula
1C2HO
C1H2O1
CH2O
2HOC
a number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
Subscript
Coefficient
Density
Atomic Number
What molecule is most likely (based on your knowledge of Periodic Table Families)?
Mg(OH)2
Sc (OH)2
K(OH)2
S(OH)2
the attraction between oppositely charged ions
Covalent Bond
Ionic Bond
Valence Bond
Hydrogen Bond
a chemical bond formed when two atoms share electrons.
Covalent Bond
Ionic Bond
Valence Bond
Hydrogen Bond
an atom or a group of atoms that has become electrically charged.
Valence
Density
Ion
Covalent
a short, easy way to show a chemical reaction using symbols.
Chemical Sandwich
Chemical Formula
Chemical Product
Chemical Equation
