Which particle has no mass and no charge?
O alpha
O beta
gamma
O
neutron

Hope the image of the frequency formula

Bthats what im doing to and i figured it out it is b

The se-ci  bonds is more polar  than s-br bond

The product formed when bao and h2o  react together is                        ba(oh)2that is  bao + h2o = ba(oh)21 mole of    bao    react  1 mole of h2o  to    form  1 mole  of ba(oh)2