Accuracy and precision is often expressed as an average of several measurements. Look at the target to the right. Are the marks on the target accurate (Yes or No)? Are the marks precise (Yes or No)?

Mass of water is smething that you froma drug test or sum girl ya

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

#2- the hno3 has a h+ ion and the naoh has an oh- ion

The answer is  d.  hydrogen