Answer:
Answer: a) 20g of H2O (18.02 g/mol) molecules=6.68x10^23
Explanation:
In order to find the amount of molecules of each of the options, we need to follow the following equation.

So, let´s get the number of molecules for each of the options.





the smalest number is in option a)
Best of luck.
Answer:
Guar gum
sodium nitrite
artificial food colorings
monosodium glutamate
etc
Substances that are not chemically bonded are mixtures.
Answer:phosphates are insoluble in water
Explanation: