Predict the products of the following reaction and propose a mechanism that explains the formation of the each product. HCI (1 equiv.) ?

What volume of 1.27 M HCl is required to prepare 197.4 mL of 0.456 MHCI? O a. 70.9 mL O b.5.5 x 10² mL O c.0.0141 mL O d. 3.41 x 10² mL O e. 1.14 × 10² mL

The accompanying table shows the ages (in years) of 11 children and the numbers of words in their vocabulary. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a s A. Vocabulary size 3000+ 2400+ 1800- 1200- 600+ 0+ • .. 0 2 4 6 8 Age (years) (b) Calculate the sample r= (Round to three decimal Data Table Age, x 1 OF ANG W SA W N 5 6 3 2 4 6 Print Vocabulary size, y 9 240 540 1100 2300 2600 650 2200 270 1300 2300 Done - X +++ ars) 3000 O D. Vocabulary size 3000+ 2400- 1800- 1200- 600- of 02468 Age (years) Q o

Item 4 4 of 16 I Review I Constants I Periodic Table Gases are different from solids and liquids. In a sample of gas, the molecules are far apart. The gas molecules also move around and collide with each other as well as with the walls of the container. These collisions generate pressure. The pressure of a gas can be measured in different units. One convenient unit of measure is called the atmosphere (atm) because it is based on atmospheric pressure. At sea level, the average pressure is 1 atm. As you get higher in altitude, the pressure steadily drops until you leave the atmosphere, where the pressure is very close to 0 atm. Part C The table below shows the different commonly used units of measuring gas pressure. Use this table in the pressure unit conversions. High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa) to about 60,000 kPa…