CC1
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
what are the 3 different states of matter?
solid liquid gas
what are the different state symbols?
(s) - solid (l) - liquid (g) - gas (aq) - aqueous
what does aqueous mean?
dissolved in water
what does is mean if a substance has a high melting and boiling point?
the forces are strong and more energy is needed to break down the forces in between the particles
what’s easy to separate a compound or mixture?
mixture
what’s and isotope
different forms of the same element that have the same number of protons but different number of neutrons (they have the same atomic number but different mass number)
what does the empirical formula mean
the simplest whole number ratio of atoms in a compound
whats a compound
a chemical that contains two or more different elements that are chemically bonded
what is the meaning of molecular formula?
the number of atoms of each element in a molecule of a compound
whats the law of conservation of mass
total mass of reactants is equal to the total mass of products
when bonds form what gets released?
energy
whats a bond
forces of attraction that hold atoms together
whats a lattice structure?
billions of strong ionic bonds packed together om a regular repeating arrangement
what are polyatomic ions
ions that contain more than one element and have an extra element