Which of the following is true about acids?

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

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