PLZ HELP ITS DUE IN AN HOUR I WILL GIVE BRAINLISTS TO THE RIGHT ANSWER

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth