How many valence electrons are represented in the following electron configuration? 1s22s22p5

What material is least likely to be recognized as a mixture by looking under a microscope

In North America, where is population density the highest? A. Near the coasts and Great Lakes B. Along the east coast C. In the midwestern region D. California

Will mark as Brainliest. Which of the following is an exothermic reaction? melting ice dissolving ammonium nitrate in water to cool the water dissolving sugar in water condensation

Calculate the moles of calcium chloride (CaCl2) needed to react in order to produce 85.00 grams of calcium carbonate (CaCO3). use the balanced equation!

True or false: the Precision of a calculated answer is limited by the least precise measurement used in the calculation

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3

Identify and briefly describe two ecosystems in your community that are beyond schoolyard

Is N2H2 a ionic compound?

What do Lewis dot structures show?