How many oxygen atoms are in 2.30 g of quartz?

Which atoms combine together during fusion reaction on the sun?

What kind of cells do animals have?

What is formed from a metal and a non-metal

What is used to measure the distance of nearby stars?

If you have 120. mL of a 0.100 M TES buffer at pH 7.55 and you add 3.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of TES is 7.55.)

Consider the model of a sodium atom. An orange circle labeled upper N a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions.

In the following reaction: Mg + 2HCl → MgCl2 + H2 How many liters of H2 would be produced if you started with 24.3 g of Mg?

How much heat, in calories, is given off when 1.25 grams of silver is cooled from 100.0°C to 80.0°C? (The specific heat of silver is 0.057 cal/g°C)

A. What is temperature really a measure of?

A chemist needs to find out how large of a container would be required to contain the products of an ammonia decomposition. If 8.91 mol H2 are produced during the reaction, how many moles of N2 are produced?