How much heat will be released from the combustion of 45.5 grams of ch4 in an excess of oxygen gas? ch4 (g) + o2 (g) ( co2 (g) + h2o (l) +890 kj .

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

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

If two objects at different te,peraure are in contact with each other what happens to their temperature