Does platinum naturally bond with any other elements

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

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.