how can changes in matter be described ?

physical change, & chemical change

3 general types of chemical reaction ?

synthesis, decomposition, & replacement

smallest particle of an element

what are the components that make a nucleotide ?

deoxyribose, phosphate group, nitrogenous base

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Physical Science

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A section of science that explains physical aspects of all existing matter

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Questions 25

Answers

1
what is the state at which an objects distance from another is changing ?
velocity
acceleration
motion
speed
2
what is matter ?
anything biological
anything that takes up space
anything both physical, & biological
anything physical
3
what is the product of an objects mass & it's velocity ?
terminal velocity
friction
projectile
momentum
4
what is the largest part of a solution ?
solute
suspension
colloid
solvent
5
what is a molecule ?
atoms combined
protons & neutrons
compound
electron cloud
6
Electrons with the highest energy level
ionic bond
electrons
ions
valence electrons
7
what shows the elements in a compound & the ratio of atoms ?
chemical formula
mixture
solution
energy
8
what type of energy is stored ?
chemical energy
nuclear energy
kinetic energy
potential energy
9
what is a chemical bond ?
attraction between elements
attractions between energys
attraction between chemicals
attraction between atoms
10
what says the buoyant force on an object is equal to the weight of the fluid ?
pressure
archimedes' principle
bernoulli's principle
pascals principle
11
what is the study of matter ?
Chemistry
Physical Science
Earth Science
Biology
12
what machines provides in a real situation ?
ideal mechanical advantage
mechanical advantage
efficiency
actual mechanical advantage
13
which do not belong with an atom ?
einstienium
nucleus
chloroplasts
protons
14
what virus infects bacteria ?
base pairing
DNA polymerase
histone
bacteriophage
15
The attraction between two oppositely charged ions
ion
ionic bond
Polyatomic ion
ionic compound
16
what are the main types in the periodic table ?
alkali metals, inert, gases, & semi-metals
halogens, & transition metals
atoms, atomic types, & isotopes
metals, non-metals, & gases
17
how can changes in matter be described ?
physical property, & chemical property
chemical change, & physical property
chemical property, & physical change
physical change, & chemical change
18
3 general types of chemical reaction ?
synthesis, product, & precipitate
chemical property, synthesis, & reactant
synthesis, decomposition, & replacement
reactant, decomposition, & product
19
on what scale does water freeze & boil between zero & 100
fahrenheit scale
kelvin scale
absolute zero scale
celcius scale
20
what is the change from solid to liquid ?
melting
sublimation
melting point
freezing
21
what is the overall force on an object ?
unbalanced force
net force
balanced force
inertia
22
what is an atom ?
smallest particle of an element
first man on earth
the average mass of an element
a gas particle
23
what surrounds an atom ?
electons
protons
electros
neutrons
24
what is the change from liquid to gas ?
evaporation
boiling
condensation
vaporization
25
what are the components that make a nucleotide ?
chromatin, adenine
guanine, adenine, thymine, cytosine
deoxyribose, phosphate group, nitrogenous base
purines, pyrimidines, & hydrogen

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