The orbital period of an object is 2 Ă— 107 s and its total radius is 4 Ă— 1010 m. The tangential speed of the satellite is m/s. (Round to the nearest whole number, do not add any punctuation. ).

When a scientific theory has been tested and proved by the scientific community, it becomes a law

Complete each row of the table below by filling in the missing prefix or missing exponent.

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?