Which of the following molecules has one lone pair of electrons?

a. ch4

b. hcl

c. h2o

d. nh3

When group 2A element from ion they A. lose two proton B. gain two proton C. lose two electron D. gain two electron

Table salt, nacl (s), and sugar, c12h22o11 (s), are accidentally mixed. a 3.50-g sample is burned, and 2.40 g of co2 (g) is produced. what was the mass percentage of the table salt in the mixture?

Explain in terms of particle arrangement why nacl (aq) is a homogeneous mixture

When you mix red and blue pigment, you produce what color?

A compound commonly found in drain cleaners, has a pH of 13. Which of these phrases describes sodium hydroxide? A. highly basic B. highly acidic C. slightly basic D. slightly acidic

A diatomic gas has the molar mass of 38.00g/mol. what is the possible formula?

Which of the following is the final concentration of KCl if 500 ml of 0.25 M KCl is diluted to a final volume of 5 L? 0.025 L 0.0025 L 25 L 2.5 L

What do you use to measure mass

A salt shaker filled with 17.0g sodium chloride contain how many moles?

When a radioactive decay occurs what is released? A. Only protons and neutrons B. Only electrons C. Protons/Neutrons, beta particle, gamma ray D. Only gamma rays