Chemical Reactions flashcards

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What is synthesis as a pattern?Reaction Types: Several reactants form a more complex product.
What is decomposition as a pattern?Reaction Types: One reactant forms simpler products.
What is single replacement?Reaction Types: An element replaces another in a compound in an overall pattern.
What is a synthesis pattern?Reaction Types: Several reactants combine into one product species.
What is decomposition?Reaction Types: One reactant produces multiple products.
Can reaction categories overlap?Reaction Types: Yes; redox and other labels can overlap pattern categories.
What does balancing conserve?Balancing Equations: The count of each element in an ordinary chemical equation.
What can be changed while balancing?Balancing Equations: Coefficients before complete formulas.
What must not be changed?Balancing Equations: Subscripts that define substances.
What is conserved in ordinary reaction balancing?Balancing Equations: The number of atoms of each element.
What may be changed when balancing?Balancing Equations: Coefficients.
Why not change subscripts?Balancing Equations: They determine chemical identity.
What coefficient set is usually reported?Balancing Equations: The smallest whole-number set.
Why include gases in mass accounting?Conservation of Mass: They have mass.
What is a closed matter boundary?Conservation of Mass: A boundary that prevents matter exchange during the accounting interval.
Can an open container’s mass change?Conservation of Mass: Yes, through matter crossing its boundary.
Does chemical change ordinarily destroy atoms?Conservation of Mass: No; atoms rearrange.