What has only one type of atom or particle in it?

Why do our seasons change?

What are the uses of zinc

A chef is serving a lunch special with 1 sandwich and 2 corn cobs per plate. If there are 5 sandwiches and 14 corn cobs, what is the theoretical yield? A. 2plates B. 4plates C. 5plates D. 7plates

When electrons are added to an element or compound this is called?

Calculate the volume occupied by 16g O2 at atp

Ammonia (NH3) is one of the most common chemicals produced in the united states. it is used to make fertilizer and other products. Ammonia is produced by the following chemical reaction. N2 (g) + 3h2 (g) = 2nh3 (g) If you have 1.00 x 10^3g of N2 a.

How many grams of O2 are in 5.0 moles of the oxygen gas?

How many of the following compounds are soluble in water? Cu (OH) 2

Mg is a member of which family? a) noble gases b) halogensc) alkaline earth metals d) alkali metalse) none of the above

How does an atom differ from a molecule?