D ) 0.30 atm, you just subtract 1.5 with 1.2 I forgot what the law was called
I think the correct answers from the choices listed above are the first, third and the last option. Ionic compounds are compounds that dissociates into ions when in aqueous solution. From the list, NH4Cl, KF and MgO are the ionic compounds. Hope this answers the question.
There are 3 significant figures in this value, all values before and after the decimal point are significant. As there is a decimal point, the zeros trailing are also significant.
Ignore my writing answer is in pictute
What are you looking for? bc i can’t see what you are asking