20 Flashcards
solid state to liquid state is called..a
a) freezing
b) deposition
c) fusion
b) melting
c)
b)
what is the formation of table salt?
a) Na+CI= NaCI
b) Ca+NI=CaNI
c) NC+Ia= NCIa
a)
what is a molecule?
a) group of chemically bonded electrons
b) group of chemically bonded atoms
c) group of chemically bonded molecules
b)
what is an atom?
a) unit of nucleus
b) unit of mesurment
c) unit of matter
d) unit of space
c)
T or F
Matter is anything that has mass and takes up space
T
T or F
solid is the state of matter with its particles tightly packed together
T
Matter is made of…
a) soap
b) deposition
c) atoms
c)
Atoms are made of…..
a) neutrons and electrons that are surrounded by protons
b) neutrons and protons surrounded by electrons
b)
Matter has to have some amount of
a) energie
b) mass
c) space
b)
T or F
the Nucleus of an atom is what surrounds it
F
T or F
an element is made of only one type of atom
T
what are the three states of matter?
solid, liquid, gas
what is a molecule?
it is a whole bunch of atoms bonded together
what is an electron?
a particle with a charge of negative electricity,
what is a pronton?
a particle with a positive electric charge
