How does the average reaction rate differ from an instantaneous reaction rate?

What are fructose and glucose an example of?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?