Chemistry conservation of mass Flashcards
1
Q
What is the conservation of mass?
A
The total mass of reactants is equal to the total mass of products
2
Q
Mass is conserved in physical changes such as?
A
Dissolving and melting
3
Q
Balanced symbol equation show
A
The formulae of reactants and products
How the atoms are rearranged
The relative amount oof reactant and products
4
Q
An example of balanced symbol equation
A
Magnesium + oxygen —> MgO
2Mg. +. O2 2MgO
