Chemistry Flashcards
(8 cards)
1
Q
What is an exothermic reaction
A
transfers energy around usually by heating,this is shown in a rise in temp
2
Q
What is an endothermic reaction
A
takes in energy from the surroundings,this is shown in a fall in temp
3
Q
What is electrolysis
A
works by passing an electric current through an electrolyte solution. The electric current causes the ions in the solution to move towards the electrodes, where they undergo chemical reactions that result in the release of either positively or negatively charged particles.
4
Q
What is ionic bonding
A
When a metal and a non metal react together
5
Q
What is covalent bonding
A
When 2 non metal atoms bond together
6
Q
What elements do group 0 contain
A
non-metals
7
Q
What is the name of group 0
A
noble gases
8
Q
What are group 1 elements called
A
alkali metals
