Changes in Matter
A process in which atoms of one or more substances rearrange to form one or more new substances.
What is chemical reaction?
Page: 419
A reaction type where chemical reaction in which two or more substances combine and form one compound.
What is sythesis?
Page: 431
A description of a reaction using element symbols and chemical formulas.
What is chemical equation?
Page: 422
True or false
An enzyme is a substance that increases reaction rates by lowering the activation energy of a reaction?
What is False?
Page: 440
The minimum amount of energy needed to start a chemical reaction.
What is Activation energy?
Page: 438
An attraction between atoms when electrons are shared, transferred, or polled.
What is chemical bonds?
Page: 421
A reaction, where one compound breaks down and forms two or more substances.
What is decomposition?
Page: 431
The starting substance in a chemical reaction.
What are reactants?
Page: 423
A substance that slows, or stops, a chemical reaction.
What is an inhibitor?
Page: 440
True or false
A chemical reaction produces water vapor to high temperatures, causing it to expand rapidly.
What is True?
Page: 436
Signs that a chemical reaction might have occurred.
What is color, state of matter, odor, and change in energy?
Page: 420
A chemical reaction in which a substance combines with oxygen and releases energy.
What is combustion?
Page: 432
The substances produced by the chemical reaction.
What is products?
Page: 423
The amount of exposed, outer area of a solid.
What is surface area?
Page: 439
The chemical reaction that releases energy.
What is exothermic reaction?
Page: 437
True or false
Water molecules are always made up of two hydrogen atoms bonded to the one oxygen atom even if they are solid, liquid or gas.
What is true?
Page: 419
A reaction where the negative ions in two compounds switch places, forming two new compounds.
What is double-replacement?
Page: 432
The bonding of two or more different element bonds.
What is a compound?
Page. 422
A catalyst that speeds up chemical reactions in living cells.
What is an enzyme?
Page: 440
The outcome of breaking a bond.
What is absorbs energy from the surrounding area?
Page: 436
The next stage in a chemical reaction is when bonds form between hydrogen atoms?
What are bonds form between oxygen atoms?
Page: 421
A reaction, where one element replaces another element in a compound.
What is single-replacement?
Page: 432
The general structure for an equation in a chemical equation.
What is reactant + reactant - product + product?
Page: 423
The reason chemical reactions occur at random speeds.
What are the particles that collide at a faster or slower speed?
Page: 438
Are random amounts of energy that a chemical reactions releases?
What is Yes?
Page: 437