Scientists have done studies showing plastics existed in tissue samples from every major human organ. In addition to the damage
caused by the microplastics themselves and the toxic chemicals they carry
with them, once in the human body, they can also build up and block the
important filtration systems in your body.
Chemicals in plastics like bisphenol A (BPA) will increase our risk of certain
cancers, can cause hormonal issues, and even increase risk of infertility
and birth defects. Ingesting plastic can also negatively impact the immune
system over time.
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Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next