Number 2. this is a chemical change cuz numbers 1, 3 and 4 are physical. So if you add the equation of 2 it has two molecules.
Answer:
Explanation:
1) make an observation that describes a problem,
2) create a hypothesis,
3) test the hypothesis, and
4) draw conclusions and refine the hypothesis.
True ! search it up on safari and it tells you that it’s true
Answer:
Proton acceptor → Bronsted-Lowry Base
Provides OH⁻ in water → Arrhenius base
Electron pair donor → Lewis base
Explanation:
We split the references:
Lewis Base
Provides H in water
Bronsted-Lowry Base
Provides OH⁻ in water
Arrhenius base
Proton donor
Proton acceptor
Electron pair donor
Electron pair acceptor
The Bronsted-Lowry theory states that:
- An acid donates protons
- A base recieves protons
The Arrhenius theory states that:
- An acid increases the [H⁺] in aqueous solutions
- A base increases the [OH⁻] in aqueous solutions
The Lewis theory states that:
Acid is the one that accepts a pair of e⁻
Base is the one that donates a pair of e⁻
