How many moles of atoms are contained in 15.7 g of Bromine

A. describe where to look on the periodic table to find Elements which have similar reactivity and other properties. B. explain why they have similar properties C. name three elements that have those similarities.

If an object changes to a different state of matter is called physical property or chemical change or physical change

Consider a sample of helium and a sample of neon, both at 30.0°C and 1.5 atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? Consider a sample of helium and a sample of neon, both at 30.0°C and 1.

What is true of all particles of gas enclosed within a container? They move at different speeds. They have the same kinetic energy. They never collide with each other.

How many kilometers can the car travel on the amount of gasoline that would fit in a soda can? The volume of a soda can is 355 mL

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