A mineral that has - can be split fairly easily along plains with weak atomic attraction A. streak B. Cleavage C. luster D. Hardness

Everything around us is made of

Consider the reaction N2 (g) + O2 (g) ⇌ 2NO (g) If the equilibrium partial pressures of N2, O2, and NO are 0.22, 0.19, and 0.030 atm, respectively, at 2200°C, what is KP?

Which molecule is an alkene? A. 2-methylhexane B. 3-octyne C. Octane D. cis-2-pentene

The gas inside a balloon is characterized by the following measurements: pressure = 725.5 mmHg; volume = 400.0 mL; temperature = 16.5 C

How many grams of MgCl2 (molar mass = 95.20 g/mol) will be formed from 25.6 mL of a 0.100 M HCL solution reacting with excess magnesium metal? (The other product is hydrogen gas.)

In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants.

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?

The elements most likely to form more than type of ion are the ... A. Transition metals B. alkali metals C. halogens D. alkaline earth metals

Mole-Mass Conversions How many moles in 28. o grams of Oxygen? What is the mass of 5.0 moles of Iron? Find the number of moles of argon in 452 g of argon. Find the grams in 16.5 mol of Hydrogen.