Choose the equation that represents an unbalanced neutralization reaction equation.

a) hbr + ca(oh)2 → cabr2 + h2o
b) so2 + h2o → h2so3
c) nacl + h2o → hcl + naoh
d) na + h2o → naoh + h2

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.