How are fossil fuels differ then fossils ill give brainliest A. fossil fuels is used as a source of energy
B. fossil fuels are covered in layers of sediment
C. fossil fuels take many, years to form
D. fossil fuels are formed from ancient organism

It is true because i have took the test and it came out to be true

They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

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