Answer:
The molar mass is: 18.02 g/mol.
Explanation:
- Mass of two moles of Hydrogen atoms (H2) = 2x 1 g/mol = 2 g/mol.
- Mass of one mole of water (H2O) = 2 g/mol + 16 g/mol = 18 g/mol.
1 mole of Hydrogen= 1.01, so if we have 2 moles of it here, that would be 2.02.
1 mole of Oxygen (that's all we have here)= 16.00
Once you add the two together (2.02+16.00), you will get 18.02.
I hope this made sense! Have a great day!
By crushing the salt, you are performing a physical change because you aren't altering the chemical makeup of the salt, just the physical form. Hope this helps! :)
Answer:
Melting
Explanation:
When you melt a sedimentary rock it becomes magma. Once that magma cools and hardens it becomes an igneous rock.
Answer:They are not chemically bonded to each other
Explanation:
In a solid, the molecules are packed together, keeping shape. Liquid molecules are looser, and fit to the container they are in. Gas molecules are sporadic, and expand to fit their container