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If the hydronium ion concentration is 4.5 x 10-6 M, what is the pH of the solution? Your answer should have 2 decimal places.

Carbon monoxide is made from the oxidation of carbon:  2C(s) +  O2(g) →  2CO(g) What mass of carbon monoxide (MM 28 g/mol) can be made from the reaction of [x] g C (MM 12 g/mol) with [y] g O2 (MM 32 g/mol)? Your answer should have at least 1 decimal place.

For the following reaction, 19.6 grams of glucose (C6H12O6) are allowed to react with 14.9 grams of oxygen gas.glucose (C6H12O6) ( s ) + oxygen ( g )  carbon dioxide ( g ) + water ( l ) What is the identity of the limiting reagent?  

What is the aluminum ion concentration (M) in a  [x] ml solution of [M] Al2(SO4)3? Your answer should have 2 decimal places.  

Most earthquakes originate deep below the crust where the pressures are enormous.

What are the two most abundant elements in Earth’s crust?

The current estimate for the age of Earth is about ____ years.

The chain of mountains found in the center of the Atlantic Ocean basin is called the

What does the texture of an igneous rock tell you about its cooling history?

Sills are formations of lava that cool on Earth’s surface in giant sheets.