Reactions with acids Flashcards
1
Q
What is pH?
A
measure of the concentration of hydrogen ions
2
Q
The higher the H+, the ____ the pH
A
lower
3
Q
Is an acid above or below 7 on the pH scale?
A
below
4
Q
Is an alkali above or below 7 on the pH scale?
A
above
5
Q
True or false? All metals have the same level of reactivity?
A
False
6
Q
metal+acid
A
hydrogen+salt
7
Q
acid+base
A
salt +water
8
Q
acid + carbonate
A
salt+water+carbon dioxide
9
Q
When does a precipitation reaction occur?
A
when a soluble reactant combines to form an insoluble product (precipitate)
10
Q
What does it mean if a solution has gone cloudy?
A
precipitate has formed
11
Q
What is an ionic compound?
A
made of lattice of positive and negative ions
12
Q
How do you predict precipitate reactions?
A
1) swap ions to get products
2) check solubility chart
3) make prediction
