Conversion of mass and types of reactions Crossword

In what reaction can mass not be created or destroyed?
The total mass of the reactants equals the total mass of what?
Who founded conversion of mass?
The product may have different properties to the what?
If mass wasn’t created or destroyed then what did it do?
The finding of conversion mass led to what theory that was founded by John Dalton?
Law of conservation of mass is used in many fields such as chemistry ,mechanics and blank?
In what century was the conversion of mass discovered?
When a supstance reacts with oxygen to produce energy in the form of heat what is it?
How many categories of reactants are there?
When two or more elements combine to form a more complex compound is called what?
What do decomposition reactions require?
What is it called when a single compound breaks down?
What is it called when ions and two compounds change partners?
A blank replacement takes the place of another element in a compound?
Which category of reactions is missing of combustion,synthesis,,decomposition,single replacement, and what?
What is the name of the number that indicates the ratio of elements in a compound?
By looking at the what you can tell how many molecules or atoms of each reactant and product are involved in a reaction?
Balancing an equation means that the atoms of each element are the what on both sides?
Which one of the five categories of reactions are not listed synthesis,decomposition,single replacement, and double replacement?