Natural selection is a force that changes organisms over time. Natural selection is always working, as long as there is a favorable or an unfavorable characteristic that is inherited from one generation to the next. On which level does natural selection directly work?

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

In one or two grammatically correct sentences, write a definition for the term molecule geometry

What is the chemical formula of magnesium bromide? a. mgbr2 b. mgbr c. mg2br2 d. mg2br