A. How many atoms would be present in a black dot marked on the paper with graphite pencil as a full stop at the end of a sentence? [Given mass of a dot = 10-18 g]
b. Write the cations and anions present (if any) in the following compounds:
(i) CH3COONa
(ii) NaCl

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature