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.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin