(04.01 MC) Which of the following equations is balanced? (5 points)
a
2H2 + O2 + 4H20
b
4Na + 02 2Na20
С
Fe2O3 + H2 → 2Fe + 3H20
d
CH4 + O2 → CO2 + H20
Need help!

Olá. porque a reação na temperatura é muito rapida a do copo : )

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

Its the second one nonmetals are moldable and easily shaped 

Hello there,it will only be somewhat eroded (25%)hope this : ))~top