Why do elements in the same colum have similar properties?

A gas tank holds 20000 liters at 850 torr. If the temperature remains constant, what will the volume, in L, of the gas be at standard pressure, 760 torr?

Which statement best explains the value of the Periodic Table 1. It provides a view of the elements organized by their properties 2. It includes charts with the International System 3. The structure is hard to understand 4.

What was the date of Germanium discovery? • Which scientist or scientists discovered the Germanium • Where was Germanium discovered? Unknown • How was it Germanium discovered? •.

You have a partially filled party balloon with 2.00 g of helium gas. you then add 2.74 g of hydrogen gas to the balloon.

The moon makes light the same way that the sun does. True or False

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

Which is the MOST accurate description about how the different types of feedback mechanisms work

What was one of the main benefits to the use of the icebox for cooling food?

How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 0.98 atm and a temperature of 373 K?

What are the building blocks