Silver tarnishes when it comes into contact with hydrogen sulfide in the air.
physical property or chemical property

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root