The mass of a nitrogen atom is 14 u. What is the mass, in grams, of 2 mol of N?

is aluminum foil a compound element or mixture?

What is the total number of electrons found in an atom of sulfur? (1) 6 (2) 8 (3) 16 (4) 32

What is the correct name for P4S3?

What is a cell? 1. the basic unit of atoms 2. the basic unit of structure and function in living organisms 3. the basic unit of molecules 4. the basic unit of life that eats and breathes for organisms

How many grams are in 1.6 moles of potassium bromide?

2C (s) + 2H2 (g) → C2H4 (g) : ΔH = + 52.4 kJ/mol Which statement about this reaction is correct?

A chemist dissolves 660. mg of pure hydroiodic acid in enough water to make up 300. mL of solution. Calculate the pH of the solution. Round your answer to 3 significant decimal places.

What type of radiation wave from the Sun does this graphic display? answer choices: x rays microwave visible ray infrared ray

What is the charge associated with each side of the HCl molecule?

Neon is a gas made up of one type of atom. Which term best describes neon? A) molecule B) element C) compound D) mixture