What is the first element that was discovered?

How many atoms are in KNO3?

How many grams of lithium are needed to produce 45.0 grams of lithium nitride, according to the following process? 6 Li (s) + N2 (g) → 2 Li2N (s)

What happens across a period, in the periodic table?

The properties of metals include all but which one of the following A. Conductors of heat B. Malleable - you can bend and mold it C. Ductile - you can stretch it in strings D. Usually hard and solid at room temperature E. Breaks easily

What volume is needed to store 0.050 moles of helium gas at 202.6 kPa and 400 K? (Given: R = 8.314 L∙kPa/K∙mol) A) 1.218 L B) 121.8 L C) 0.820 L D) 8.21 L E) 82.1 L

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .

What groups of elements do not have a charge and why

How many grams of Br are in 2.0 moles of CaBr2?