Ch 14 Bonding Flashcards
what is the law of conservation of mass
the total mass of all the reactants in a chemical reaction always equals the total mass of the products
what is fuel
a substance that burns in oxygen to produce heat
what is a hyrdocarbon
a compound that contains hydrogen and carbon
what does a metal + oxygen equal
a metal oxide
e.g. copper oxide
what three conditions do you need for fire to happen
oxygen
fuel
heat
what happens when metal reacts with water
metal hydroxide and hydrogen
what is corrosion
the gradual reaction of metals with water and oxygen in the environment
what ways can you prevent corroding metal
painting metal
covering metal with plastic
greasing metal
covering metal with coating of a metal that doesn’t rust
what is the reactivity series of metals
how scientists have put the metals in order of their reactivity
what metals react with water
potassium lithium calcium sodium
how does an ionic bond occur
an ionic bond occurred when one atom loses electrons and another atom gains these electrons
how does a covalent bond occur
a covalent bond occurs when atoms share electrons
what is an ion
a charger atom that is created when an atom loses or gains an electron
if an atom gains an electron it has an extra negative charge
if an atom loses and electron is has a positive charge
what is an ionic bond
the force of attraction between oppositely charged ions in a compound
