A planetary explorer vehicle on Earth weighs 557 pounds, what would it weigh on the
surface of Venus, which has 9/10 the gravity
of Earth?
A. more than on the Earth
B. less than on the Earth
C. the same as on Earth

What is the study of how matter and energy interact? a. biology b. physics c. planetary science d. chemistry

Can someone me with questions 15 to 17 plz.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1