Which two elements make up the compound named butane? What is the ratio of these two hours elements in butane? How would you use chemical symbols to represent butane?

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

What is the correct lewis dot structure for arsenic?