8. Zinc (Zn), important for immune system function in humans, is also used to prevent rusting through the process of galvanization. How many grams of zinc are in 1.7 mol of Zn? (Show all of your work for full points) (2pt)

A solution contains 0.018 moles each of $I',Br''$ and $Cl^{-}$ When the solution is mixed with 200 mL of $0.24MAgNO_{3},$ how much $AgCl(s)$ precipitates out? $KspAgI=1.5\times 10^{-16}$ $Ksp\quad AgBr=5.0\times 10^{-13}$ $Ksp\quad AgCl=1.6\times 10^{-10}$ 2.6g 3.3 g 0.0 g 1.7 g 5.0 g

What is the empirical formula for a molecule containing $86\% $ C and $14\% $ H? $CH_{2}$ $CH_{8}$ $C_{3}H_{7}$ $C_{7}H_{16}$

Is this an example of an Exothermic or Endothermic situation? lonic bonds Exothermic Endothermic

(48) A gas has a solubility in water at $0^{\circ }C$ of $3.6g/L$ at a pressure of 1.0 atm.What pressure is needed to produce an aqueous solution containing $9.5g/L$ of the same gas at $0^{\circ }C$

2. What is the result of atoms following the octet rule? a. They react and become a new element b. They always have 8 electrons c. They always have 8 valence electrons d. Their stability is increased

When the equations $Na+O_{2}\rightarrow Na_{2}O$ is balanced the coefficient for $O_{2}$ is 1 2 3 4

What is the name of $P_{2}O_{5}$ Diphosphorus pentoxide Phosphorus pentoxide Phosphorus dioxide Diphosphorus oxide

6. A sample of silver has a mass of 10.5g. What is its volume?

The formula for pH is $pH=-log[H^{+}]$ where $[H^{+}]$ is the hydrogen ion concentration. The hydrogen lon concentration, $[H^{+}]$ In a certain brand of fresh-brewed coffee is $[H^{+}]=1.3\times 10^{-5}$ . What is the pH of the product, to the nearest tenth? The pH of the coffee is $\square $ (Round to the nearest tenth as needed.)

Name the following Compounds (use your flow charty - LIOH - AgBr - Clif