Would this be a double or single replacement and why? Thanks Na2O2 + H2O -> NaOH + O2 Would it be single since the Na is pair with H?
I'm not a native speaker of English so I have grammar problems. What are some ways that I can improve my grammar? Do reading grammar book help? Also, is there any way to improve my writing beside writing more? Thank you
When you write the formula in word equation would it be : Octasilicon and oxygen reacted to produce sulfur trioxide? Would this be the balance equation? S8 + 12O2 -> 8SO3
So since it S3O6, it was reduce to SO3?
Thank you for the informative answer yesterday. I hope you can help me with this one too. Thanks S(subscript 8) + O( subscript 2) -> SO3 Could you explain why it O3 when S valence is -2? Thanks
I'm currently learning about balancing chemical equation but I don't understand the equation below. 2FE + 3CL(subscript 2) -> 2FECL(subscript 3) I understand 2FE balance out but how did 3CL2 became CL3? Thanks
Find the energy( in KJ) of a wave with the wavelength of 507 nm. First, I turn the 507 nm into meter then divide the speed of light by it which give me the frequency. Then I take the frequency and multiply by the planck. Then I would convert the Joule to KiloJoule.- Would this...
Dr.Bob, yesterday you told me : "The best way I think is to show examples. 12Mg = 1s2 2s2 2p6 3s2 Here the 1s orbital is lower than the 2s and they are lower than the 3s etc." 19K = 1s2 2s2 2p6 3s2 3p6 3d0 4s2 Here the 1s is lower than the 2s and those are lower than...
A number plus sixteen.
The answer would be (2x+3)(x+1). Do you need an explanation on how to do such problem?