Which element in period 2 of the periodic table is the most reactive nonmetal?

a. carbon

b. nitrogen

c. oxygen

d. flourine

Calcium and water form calcium hydroxide and hydrogen gas also called what type of reaction

Name the four bases found in a DNA molecule

Nucleic acids are hydrocarbons that also contain which other element?

What are the characteristics of different classes of chemical reactions?

A tank contains 135 moles of the monatomic gas argon at a temperature of 15.3 °c. how much energy must be added to the gas to increase its temperature to 45.0 °c?

What was atomic theory about?

PH=-log[6.3*10-10M] What is the pH of the solution? What is the pOH of the solution?

Will mark brainliest! Atoms form ions by gaining and losing electrons. They do this to become stable. Stability in an atom means that it obtains a full valence shell of electrons, usually 8, just like a noble gas!

Which of these is a unique property of bases? a. contains a carbon b. tastes sour c. conducts electricity in solution d. feels slippery

Which of these groups of metal would have the most similar properties?. a. Ag, Au, Cu, Zn. b. Cr, Fe, Co, Ni. c. Al, Si, P, S. d. Mg, Ca, Sr, Ba