S1.1 Flashcards
1
Q
what are elements
A
elements are the constituents of matter, which cannot be chemically broken down into simpler substances
2
Q
what are compounds
A
consists of atoms of different elements chemically bonded together in a fixed ratio
3
Q
what are mixtures
A
consists of more than one element or compound in no fixed ratio, which are not chemically bonded so can be separated by physical methods
4
Q
what is temperature
A
the average kinetic energy in a particle
5
Q
conversion from °C to K
A
+ 273
