How many neutrons does element X have if its atomic number is 35 and its mass number is 76?

Describe the properties of sodium, chlorine, and sodium chloride

Chemical weathering

What volume of a 0.240 m solution of barium nitrate is needed to prepare 0.500 l a solution that is 0.0800 m in nitrate ion?

What is the percent yield for the reaction pcl3 (g) + cl2 (g) ? pcl5 (g) if 119.3 g of pcl5 (? = 208.2 g/mol) are formed when 61.3 g of cl2 (? = 70.91 g/mol) react with excess pcl3? a 66.3%?

Which of the following quantities contains the greatest number of particles? 2 moles of carbon atoms 2 moles of carbon dioxide molecules 2 moles of diatomic oxygen molecules All of these quantities contain the same number of particles.

A flexible container is filled with 960.0 liters of air at 38 degrees Celsius. If pressure in the container does not change, at what temperature will the container have at a volume of 350.0 liters?

Which subatomic particles are paired with their charges? 1. electron-positive, neutron-negative, proton-neutral 2. electron-negative, neutron-neutral, proton-positive 3. electron-negative, neutron-positive, proton-neutral 4.

Where do you think information is coded in a DNA molecule?

The mole fraction of carbon dioxide in a gas mixture is. 200 there are also. 251 g of nitrogen and. 322 g of oxygen in this gas mixture what is the mass of arbon dioxide in this mixture

How do you do empirical formula