True or False: It is OK to heat a sealed vessel. (In other words do you need to fit a release valve on your glassware in case pressures builds up)

How do geology and geosphere compare

KClO3 - - - > KCl + O2 Balance the decomposition chemical reaction. A) KClO3 - - - > KCl + O2 B) 2KClO3 - - - > KCl + 3O2 C) 2KClO3 - - - > 2KCl + 3O2 D) 2KClO3 - - - > 2KCl + 6O2

What is the electron configuration for a neutral potassium atom

Explain how algae is indirectly essential to consumers in ecosystems, polar bears.

Why do atoms go through radioactive decay?

Which of the following correctly describes how metals behave in an ionic bond? Metals lose their valence electrons and form positive ions. Metals lose their valence electrons and form negative ions.

A pharmacist measures the mass of a powdered drug. The mass is 506 mg. What is the mass in grams? Write your answer as a decimal.

Which of these is a source of sediment? A. Fragments if other rocks B. Chemicals and minerals dissolved in water C. Sea shells D. All of the above

Entropy is greater at higher trophic levels than at lower levels ... True of False

If the caffeine concentration in a particular brand of soda is 2.85 mg/oz, drinking how many cans of soda would be lethal? Assume that 10.0 g of caffeine is a lethal dose, and there are 12 oz in a can.