Atoms, Elements, Compounds Question Preview (ID: 48377)
Physical Science.
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which substance are substances arranged orderly
a) gas
b) liquid
c) solid
d)
How many elements are in the compound MgOH2?
a) 2
b) 3
c) 4
d) 5
what substance is a compound
a) sodium
b) chlorine
c) table salt
d) salt water
iron oxide, also known as rust, is formed when iron chemically combines with oxygen. element
a) element
b) mixture
c) solution
d) compound
when copper and iron chemically unite, they form
a) an ion
b) a gas
c) a compound
d)
sugar is composed of carbon, hydrogen, and oxygen...this is an example of
a) an atom
b) a compound
c) a mixture
d)
chemical symbol for iron oxide
a) I and O
b) Ir and O
c) Fe and O
d) Pb and O
chemical symbol for sodium chloride
a) H2O
b) CO2
c) Fe2O3
d) NaCl
how can I separate salt water
a) filter the salt
b) freeze the mixture
c) evaporate the water
d) pour the water out of its container
which of these is a compound
a) C
b) Mn
c) Co
d) H2O
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