Question 1

Dr pepper has an [H+] = 1.4E-5. what is the pH

The volume of gas is 250mL at 355kPa. What will the volume be when the pressure is reduced to 76.0kPa?

Match the following terms with their definitions: Words 1. pure substance 2. matter 3. atom 4. molecule 5. element Defintitions 1.

What are the two roles that the pancreas plays?

In the important industrial process for producing ammonia (the Haber Process), the overall reaction is: N2 (g) + 3H2 (g) → 2NH3 (g) + 100.4 kJ A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure.

When a sample of gas is cooled, it condenses into a liquid. In which of the following ways do the molecules of the original gas sample compare with the molecules of the liquid? a. The molecules weigh less as a gas than they do as a liquid. b.

Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (RD) strontium (SI) zirconium (Z1) silver (Ag)

Sara and Sam went for a two-hour drive. According to the graph, between. 75 hours and 1.25 hours into their trip, they A) slowed down to a speed of 15km/hour. B) travelled at a constant rate of 30km/hour.

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

Calculate the concentration of a solution that has 6.7 moles in a volume of 0.6 liters.

Is sidewalk cement an element or a compound?