Each molecule of hydrogen gas (H 2) is made of two hydrogen atoms. If you have 6.022 * 10 ^ 23 molecules of hydrogen gas, then how many moles of hydrogen atoms do you have?

Extra Stoichiometry Practice 1. How many grams of aluminum oxide can be formed by the reaction of 38.8 g of aluminum with oxygen? 4 Al (8) + 3 O2 (g) →2 A12O (s)

Why do elements in a vertical column of the periodic table have similar chemical properties? A. They possess the same number of outermost electrons. B. They have similar physical characteristics. C. They are found in similar locations in nature D.

Identify three details for how the Earth and Moon are different

The bohr model is an inaccurate model of the atom because there is no way to measure the exact of an electron in an atom

How many moles of solute particles are present in 100.0 mL of 2.50 M (NH4) 3 PO4?

1. According to the article, which country may have a greater population than China by the year 2050? A. China B. Kenya C. India D. Germany 2. What does the article list as one reason that drives couples in India to have more children? A.

How are the relationships of elements in a group different from the relationships of elements in a group

How many nitrate ions are in 387.4 grams of calcium nitrate?

Tin or silver more reactive

Chemical reactions that release energy possess reactants with lower energy than their products. True or False Heat is the most common form of energy absorbed or released in chemical reactions. True or False