Question 1 of 5 Earth's Moon is 384,400 km from Earth. What is the correct way to write this
distance in scientific notation?
A. 38.44 x 10-4 km
B. 38.44 x 104 km
C. 3.844 x 10-5 km
D. 3.844 x 105 km

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~