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Chemical Reactions 2022

Across
A reaction that requires no activation energy
True or False / Atoms are always destroyed and created during chemical reactions
Flammable gas..think of the exploding balloon.
Type of reaction where the reactants and products are contained and not allowed to escape. (two words)
Small number to the lower right of a symbol representing the number of atoms
Total number of atoms in 3NaOH
Energy needed to start a chemical reaction (two words)
Term used to describe a reaction that released heat energy.
Chemical name for our Bunsen burner gas.
Ending substances in a chemical equation
Burns very bright white
Down
Color copper salt will give off if burned.
If you see these forming it would be evidence of a chemical reaction
Large number placed in front of a formula identifying the number of molecules.
Name for H2O2 (wants to be water / two words)
Reactive metal that might explode if added to water.
Type of chemical equation that shows the conservation of mass.
Element necessary for things to burn.
Beginning substances in a chemical equation
A change in this would be evidence of a chemical reaction
Rigid airship that was destroyed due to the flammability of Hydrogen.
Black element in gunpowder
Common name for Sucrose (we burned it...then tasted it)
What the arrow means in a chemical equation