Lead(ii) sulfate is precipitated from a mixture of water solutions of potassium sulfate and lead(ii) nitrate. write the word equation and balanced chemical equation for this double replacement reaction.

How air particles exert a pressure on the inside of the balloon

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold