`i was wading in the creek and discovered what i thought to be a small meteorite. i took it home and found its mass to be 12.00 kg. i ran some fancy schmancy chemical tests on it, and determined that the mass of nickel within the sample was 300.0 grams. what is the mass percent of nickel in the meteorite? a. 25.00%

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

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.