Chemistry (fpt) Flashcards
Ionic compounds
A metal bonded to a non metal, metal donates valence electron and non metal gains valence electron
If there’s less than 4 valence electrons what happens? More?
Less than 4 = pos
More than 4 = neg
How do u name ionic compounds
Metal then non metal.
Always ends in ide for the non metal
Law of conservation of mass
Mass cannot be created or destroyed
Total mass of reactants = total mass of products
Law of conservation of mass
Mass cannot be created or destroyed
Total mass of reactants = total mass of products
Describe 5 types of reactions
Synthesis - A+B equals AB
decomp - AB equals A + B
Single displacement - Ab+ c equals ac plus b
Double displacement - ab plus cd equals ac plus bd
Combustion - CH+ O2 —> co2 + h20
Incomplete means there’s extra letters left over
Is substance A has PH of 5 and substance B has pH of 3, how much more acidic is B?
100x more bc rule of ten
What’s an indicator
Chemical that changes colour at change of pH
What happened to blue and red litmus paper when it’s acidic
Blue will turn pink
Red will turn pink
What happened to blue and red litmus when it’s basic
Blue turns blue
Red turns blue
What happenes to blue and red litmus paper when it’s neautral
Blue turns blue
Red turns pink
Name what cabbage juice will do when it’s acidic basic and neautral
Acidic - red
Basic- yellow
Neutral - purple
