Font size
WorksheetsChemical Reactions
Total questions: 11
Worksheet time: 13mins
endothermic reaction
warm
cool
absorbs energy
release energy
exothermic
absorbs energy
releases energy
warm
cook
Why are coefficients used?
to balance chemical equations
to make chemical equations unbalenced
tells how many valance electrons are in an element
they are not used in science
reactants
starting materials
ending materials
the arrow
products
staring material
ending material
the arrow
yeilds
starting materials
ending materials
the arrow
sythesis
reaction where 2 or more substances are combined to make a more complex substance
reaction where complex substances are broken down into simpler compounds/elements
reactions where two elements trade places
decomposition
reaction where two or more substances are are combined to make a more complex substance
reaction where complex substances are broken down into simpler compounds/elements
reactions where 2 elements trade places
reactions where 2 elements from two different compounds trade places
double replacement
reaction where 2 or more substances are combined to make a more complex substance
reactions where complex compounds are broken down into simpler elements/compounds
reaction where 2 elements trade places
reaction where 2 elements from 2 different compounds trade places
CaCO₃+2HCl---->CaCl₂+ H₂CO₃
synthesis
decomposition
single replacement
Double replacement
Minimum amount of energy needed to get a reaction started
kinetic
potential
activation energy
reactions
