How would the speed be different if its orbit were a circle instead of am ellipse

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals