Glass is cheap readily and has reactivy
Hi!
In collision theory, for a chemical reaction to occur - there must be <em>sufficient </em>energy to break down chemical bonds.
We call this the activation energy, as it's the energy needed to <em>activate </em>a chemical reaction!
Hopefully, this helps! =)
The answer is B) fills all the space in its container
Answer:
Cu(NO₃)₂ + 2NaOH → Cu(OH)₂ + 2NaNO₃
Explanation:
This is the reaction:
Cu(NO₃)₂ + 2NaOH → Cu(OH)₂ + 2NaNO₃
Let's verify the ions charges
Cu(NO₃)₂ → Cu²⁺ + 2NO₃⁻
NaOH → Na⁺ + OH⁻
Cu(OH)₂ → Cu²⁺ + 2OH⁻
NaNO₃ → Na⁺ + NO₃⁻
Answer:
Physical Change
Explanation:
A solid being crushed into a powder is a physical change because a chemical change is when substances combine to create new substances.
Hope this helps :)