which of the following is the simplest
a chemical formula
b compound
c element
d mixture
which of the following in NOT an example of compound
a ammonia
b helium gas
c hydrogen peroxide
d table sugar
whi of the following statements is TRUE about elements and compounds
a are simplest in nature
b are simplest form of matter
c are commonly naturally occurring materials
d can be broken down into simpler substances
which of the following substances is an element?
a carbon dioxide
b iron
c salt
d sugar
which of the following describes an element?
a the simplest substances
b it can be broken down into other types of substances
c it can be separated through a chemical process
d it is composed of two or more types of atoms
​