Answer: electron donor.
Explanation:
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions 
when dissolved in water and an acid is defined as a substance which donates hydronium ions 
in water.
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
Here 
acts as lewis base and 
act as lewis acid.
Thus lewis base is defined as an electron pair donor.
Best Answer: 4.52 X 10²³ atoms. Use Avogadro's number to multiply 0.750 moles times 6.022 X 10²³
Answer:Search Results
Featured snippet from the web
As the torrent of water dried up for the first time in thousands of years, it revealed a horrific sight. n(CO2) = mass(CO2)/Molar mass(CO2) = 112/44 = 2.5454
Explanation:
No, it won't change the amount of reactants nor the products as a catalyst will only provide an alternative path where lower activation energy is needed for the process to take place.
hope this explains it
If it does, please give it a brainliest :)))
