Question

Its a brainaliest question: if the mass of mars is given 6.39×10²³ then what will be the surface area of mars( show by calculating )

Answer 1

g = G * M / r2

= (6.39 * 10-23) * (5.98 * 1024) / (6.378 * 106)2

= 9.81 meters/second2

Answer 2

Explanation:

Pure calcium carbonate can be produced from marble, or it can be prepared by passing carbon dioxide into a solution of calcium hydroxide. In the later case calcium carbonate is derived from the mixture, forming a grade of product called "precipitated calcium carbonate,” or PCC.