What is the total number of protons in the nucleus of an atom of potassium-42?

What is the maximum number of moles of water you could produce with 30 moles of O2?

Which word is the longest word in chemistry?

Neon is a highly unreactive element. which other elements would you expect to also be unreactive? A - zinc B - argon C - Fluorine D - Lithium

What is the density (in g/l) of a gas with a molar mass of 146.06 g/mol at 1.03 atmosphere and 297 k

1. What volume is required to contain 100.0 mol O2 at STP?

If EG = 19 and FG = 12 then EF = ?

Given the following reaction: 4Fe + 302 → 2Fe2O3 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2? grams (round to three significant figures)

Which Group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules? 1. oxygen 2. selenium 3. sulfur 4. tellurium

How many hydrogen atoms are in 2.80 mol of ammonium sulfide?

What is a large oval structure that directs all of the cells activities?