Mgbr2
how many atoms of each element are in this compound?
a. 2 magnesium atoms and 2 bromine atoms
b) 2 magnesium atom and 2 bromine atoms
c) 2 magnesium atoms and 1 bromine atom
d 1 magnesium atom and 2 bromine atoms

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

The big bang theory suggest that the universe is about - 300 million years old - 4.6 billion years old - 30 billion years old - 13 billion years old