Which of these are properties of a base

According to the pH chart, which is the strongest acid?

According to the pH chart, which is the strongest base?

Pepsi

Vinegar

Orange Juice

What property do all three of these common household substances have in common?

Which compound demonstrated the LEAST increase of solubility as a result of an increase in temperature?

Which compound demonstrated the GREATEST increase of solubility as a result of an increase in temperature?

Which solubility graph correctly depicts the decrease of solubility associated with a decrease of temperature of the solution?

Where would water be placed, if at all, in this Venn diagram?

Carter was working with different concentrations of Sodium Hydroxide in the lab. Which of these would BEST describe the results Carter would see if he was using a conductivity apparatus in each of the different Basic concentrations?

Based on the information in the above chart, which of these acids would be the best conductor of electricity?

Lakes and ponds which have limestone or calcium carbonate are affected less by acid rain than those which have granite. This is because

Eddie's chemistry teacher has asked the class to add various household substances to this scale of acids and bases. Eddie must decide where add baking soda, pH 9.

Eddie should insert baking soda, pH 9, as a

Consider the four salts represented on the solubility curves displayed as line graphs. In all four cases the salts are which part of an aqueous solution?

Usually, when the temperature is decreased, what will happen to the rate of dissolving?

Ava is preparing three solutions of salt water. Each of the solutions has the same amount of water in the beaker and a different amounts of salt. In the first beaker, there is one scoop of salt in the beaker. The second beaker has two scoops of salt. The third beaker has three scoops of salt. Which of the beakers is the most concentrated solution?

The addition of baking soda to pure water, causes the conductivity to _________.

The addition of sulfuric acid to pure water causes the conductivity to _________.

In a laboratory investigation, students measured the rate of fermentation in yeast cells. Data was collected by student groups showing how the rate of fermentation is altered by:

1. pH of the reaction mixture;

2. amount of yeast added to the reaction mixture;

3. type of sugar added to the reaction mixture.

Students were instructed to find the optimum conditions for a new fermentation process to be used at the local bakery. The one constant in all experimental groups is that the temperature remain at 25^oC. Student teams used the Vernier Equipment

Pressure sensor, LabPro interface, gas pressure accessories kit, a clock with second hand, water bath, reaction flask with valve and tubing, turkey baster, thermometer, source of hot and cold water, balance, 25 mL graduated cylinder, buffer pH 7, yeast, and sucrose.

A control situation was run: a. temperature 25^oC, b. 25 ml. of buffer pH 7, c. 2 grams of sucrose, d. 2 grams of yeast. The three substances were combined in the reaction flask and mixed by swirling. The flask and solution was placed in the 25^oC water bath with the stopper firmly in place but, with the valve open. After 10 minutes, when the yeast was active, the flask was sealed by closing the valve. The collect button was clicked ON. A line, representing the pressure, appeared on the graph and individual measurements appeared in the data table.

Data was recorded for 300 seconds or until the pressure reached 120 kPa.

One student group varied the pH of the yeast mixture. Their results can be seen here. Based on their data, the most desirable pH for fermentation is

Calcium Carbonate is often used in experiments to neutralize Sulfuric acid. In the picture above, the beaker on the left contains a solution of sulfuric acid. What can you conclude about the picture on the right?

Nola and Bayleigh tried to dissolve 45 grams of NaCl in 100 grams of water at 80^oC. Only 40 grams dissolved; 5 grams settled at the bottom of the beaker. The solution is then said to be ________________ at 80^oC.

How does milk of magnesia act to calm an upset stomach?

Cooper is attempting to dissolve rock salt in warm water but it is a slow process. How could he most effectively increase the rate of solution of the rock salt?

Determine which choice(s) is/are correct?

I. Grinding solids increases their surface area of contact.

II. Stirring slows down (decreases) rate of dissolution.

III. Grinding solids speeds up their rate of dissolution.

IV. Heating slows down (decreases) rate of dissolution.

Brass, Bronze, and Steel are all examples of which type of solution?

Air is a common example of which type of solution

Salt water is a common example of which type of solution?