It would be an physical change ; if you melt butter the butter goes from a solid to a liquid so therefore the physical state is changed.
A. dose
a dose is an amount, a response is an action, and pollutant and toxins are substances
Answer:
Neon (Ne)
Hydrogen (H)
Argon (Ar)
Iron (Fe)
Calcium (Ca)
Deuterium, an isotope of hydrogen that has one proton and one neutron.
Plutonium (Pu)
F-, a fluorine anion.
Explanation:
I got u
Answer:
The 3rd choice
Explanation:
A strong acid ionises COMPLETELY in water to produce high concentration of hydrogen ions
A weak acid ionises PARTIALLY in water to produce low concentration of hydrogen ions
