Which chemical equation describes an acid-base neutralization reaction?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __