To which group of the periodic table do lithium and potassium belong? halogens
transition metals
noble gases
alkali metals
What is the density of liquid water?
2 points
0.5 g/mL
5 g/mL
1 g/mL
0.92 g/ml
Which of the following element is a liquid at room temperature?
2 points
Chlorine
Gold
Iron
Mercury

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?

The ammonia molecule in the diagram has the observed bond orientation because