2. An element exists and different isotopes, 4.35% have a mass of 49.9461 amu, 83.79% have a mass of 51.9405 amu. 9.50% have a mass of $2.9407 amu, and
2 30% have a mass of 53.9380 amu.

what is the atomic mass? what is

What is the gold assay

Answer is (d)a brainliest would be appreciated

The answers are 3.c kelvin4.b liquids only

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.