How many moles of silver atoms are in 1.8 * 1020 atoms of silver?

3.0 * 10-4

3.0 * 102

3.3 * 10-3

1.1 * 1044

Which compound is sometimes found in fire extinguishers

Recycled r134a refrigerant cannot exceed what levels of contaminants

Calculate the work done by the expansion of hydrogen gas when 7.1 g of sodium react with water at constant temperature of 27°C and pressure of 1.7 atm. Use a precision of 2 significant digits. 2Na (s) + 2H2O (l) → 2NaOH (s) + H2 (g)

This is the sweetest of all natural sugars.

An atom of which element has the largest atomic radius? (1) Fe (3) Si (2) Mg (4) Zn

What would happen if you tried to sqeeze a gas into a smaller container?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat