A. Use the periodic table to answer the following questions about calcium (Ca). (8 points)
1. What is its atomic number? (2 points)
ii. What is its average atomic mass? (2 points)
iii. How many neutrons does the isotope Ca-42 have? (2 points)
iv. What family does it belong to? (2 points)

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.