Describing Chemical Reactions

13 terms by smarakovits 

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reactants

the substances at the beginning of the equation (reactants or products)

products

the new substances formed after the chemical reaction

"yields" or "gives"

the word that the arrow stands for

mass

this law says that during a chemical reaction, matter is not created or destroyed (law of conservation of ______)

open system

a system where matter can enter or escape from the surroundings (open or closed)

closed system

a system where matter is not allowed to enter or leave

synthesis

a reaction the makes a more complex substance (synthesis or decomposition)

decomposition

a reaction that breaks down compounds (synthesis or decomposition)

open

Is a reaction in a test tube an open system or a closed system?

closed

Is a reaction in a sealed glass jar an open system or a closed system?

yes

If you could weigh all of the smoke and ash from a fire, would it weigh the same as the original wood?

sodium and chlorine

If sodium + chlorine "yields" sodium chloride, what are the 2 reactants?

sodium chloride

If sodium + chlorine "yields" sodium chloride, what is the 1product?

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