Cân bẳng phương trình
Al+HNO3->Al(NO3)3+NH4NO3+H2O

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.