Question

water is the only element that can exist in all ______ ______
Hydrogen (H2) has a _____ charge
Oxygen (O2) has a ______ charge

Answer 1

Answer:

h2o

Explanation:

i hopethe above may help you

Answer 2

water is the only element that can exist in all three states (solid, liquid, gas)

hydrogen (H2) has a positive charge (+1 charge)

oxygen (O2) has a negative charge (-2 charge)

i hope this helps! :)