Examine the reactants of the reaction below.  From ONLY looking at the reactants, would you classify this reaction as a synthesis/composition reaction or a decomposition reaction? Why? CaCO3 -->
 
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Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.