Briefly explain the importance of Mendeleev's work with the periodic table

Covalent bonds are in the air you breathe and the water you drink. How are covalent bonds formed? A) between atoms with more electrons than protons B) between atoms that share electrons C) between atoms with more neutrons than prontons

If HNO2 has a molarity of 0.00052, what will it's pH be

Identify the mass law that each of the following observations demonstrates, and explain your reasoning: (a) A sample of potassium chloride from Chile contains the same percent by mass of potassium as one from Poland.

Which of the following gases would have the greatest volume at STP?. A. 5.00 moles of H2 gas. B. 5.00 g of Rn gas. C. 6.02 * 1023 particles of Ne gas. D. All of the above will have the same volume at STP. E.

Which statement best describes how to predict the formula of a stable inonic compound

A sample of neon gas has a volume of 2.85 L and a temperature of 15 °C, under a constant pressure. What is the new temperature (in °C), if the volume is decreased to 1.45 L?

Which type of chemical reaction occurs in Ca+CI2 CaCI2

Which of the following organisms are carnivores? Producers Omnivores Consumers Decomposers

What is the number of moles in 2.33 L of H2S gas at STP?

Nitrous oxide (n2o), or laughing gas, is commonly used as an anesthetic in dentistry and surgery. how many moles are present in 8.4 liters of nitrous oxide at stp?