What else is produced during the replacement reaction of magnesium and hydrochloric acid? A. MgC12
B. Mg2c12
C. Mg2C1
D. MgC1

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Can anybody me with this? ? (picture included.)