Chapter 2 Test Notes Flashcards
Temperature measure the amount of _______ energy in a substance
Thermal
As sugar dissolves to make sweet tea, it undergoes what kind of change
Physical
Covalently compounds form when atoms ____________ electrons
Lose
In any change in matter whether physical or chemical, _______ and ______ are conserved
Energy
Mass
Photosynthesis is an example of _______
Chemical change
In an exothermic reaction, the products have _______ the reactants
Less energy than
A substance that decreases the activity of an enzyme
Inhibitor
The process by which one substance breaks down another substance into smaller parts, usually ions
Dissolving
The substance that does the dissolving
Solvent
A process by which Brownian motion causes matter to spread out
Diffusion
All contain the element carbon
Organic compounds
The Amin purpose of carbohydrates
Fuel living things
Organic polymers consisting of chains of amino acids
Proteins
Water reacts with many substances because it is ______
A polar molecule
Nuclei acids contain instructions that cells use to build ________
Proteins
