What mass of Ca(OH)2 would you need to make 300.0mL of a 1.2M solution of Ca(OH)2

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas