In some places there are deep cracks in earths crust called

How any electrons are shared in the covalent bond of two nitrogen atoms to form a nitrogen molecule? A. 2 B. 4 C. 6 D. 8

A 75.0-milliliter lightbulb is filled with neon. There are 7.16 * 10-4 moles of gas in it, and the absolute pressure is 116.8 kilopascals after the bulb has been on for an hour. How hot did the bulb get?

How many kPa are in 2,150 mmHg? 2.83 kPa 287 kPa 1.61 ' * 104 kPa 2.18 ' * 105 kPa

How has radiometric dating made the construction and interpretation of the stratigraphic record more reliable

The student's lab manual says to mix 50 mL of his 2.0 M CaCl2 solution with 50 mL of a 3.0 M aqueous solution of sodium carbonate (Na2CO3) a. Write a balanced equation to show the reaction. Include state symbols b. What kind of reaction is this? c.

For the reaction n2 (g) + 2h2 (g) â n2h4 (l), if the percent yield for this reaction is 77.5%, what is the actual mass of hydrazine (n2h4) produced when 27.70 g of nitrogen reacts with 4.45 g of hydrogen?

A Which landmasses show evidence of ancient glaciers?

What is the molarity of a solution containing 5.0 moles of kcl in 2.0 l of solution?

Compare the electron configurations of hydrogen, lithium, and sodium. Why do you think these elements are grouped in the same family?

What is the theoretical yield of silver chloride?