Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
science vocab
| Question | Answer |
|---|---|
| This principle is equivalent to the conservation of energy, in the sense when energy or mass is enclosed in a system and none is allowed in or out, its quantity cannot otherwise change (hence, its quantity is "conserved"). | law of conervation of mass |
| occur when objects or substances undergo a change that does not change their chemical composition | physical changes |
| occur when a substance combines with another to form a new substance | chemical change |
| one of a class of substances that cannot be separated into simpler substances by chemical means. | element |
| molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound. | chemical fomula |
| are molecules composed only of two atoms, of either the same or different chemical elements. | element (diatomic) molecule |
| a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds. | compound molecule |
| the symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side | chemical equation |
| a process that leads to the transformation of one set of chemical substances to another. | chemical reaction |
| gives the reactants and products | reaction (in a chemical equation) |
| Chemical reactions are really the rearrangement of the connectivity between the atoms in the reagenmts to produce products | product ( in a chemical equation) |
| the numbers of molecules of reactants or product. | coefficient (in a chemical equation) |
| Subscripts are numbers used to tell you how many atoms of an element are present in the equation | subscript (in a chemical) |
Created by:
g0407033
Popular Science sets