48 What is the color of the indicator thymol blue in a solution that has a pH of 11? (1) red (3) pink

(2) blue (4) yellow

How many Oxygen (O) atoms are in the following? CO2 Carbon Dioxide + H2O 4 3 2

2Cu + O2 + 315kj - 2CuO. Is what kind of chemical reaction?

How many grams of NaOH are needed to prepare 2.0 L of a 1.5 M NaOH solution?

Sodium is a metal like copper, suggest reasons why sodium con not be used in electrical wires.

Suppose a lab reports the mass of the sand higher that it really is. Is it really possible to collect more sand than was originally present? What is a possible explanation for the extra product?

Describe the process of condensation.

In the reaction A + B C, doubling the concentration of A doubles the reaction rate and doubling the concentration of B doubles the reaction rate.

How much more acidic is a solution with a PH of 5 than a solution with a PH of 8?

A sealed balloon is filled with 2.20 liters of helium gas at 20.0° C. If the pressure does not change, what is the temperature when the balloon expands to a volume of 2.60 liters? 16.9° C 23.6° C 25.1° C 73.3° C

If I have a molar concentration of Na2S2O3 of. 02M and a volume of. 001L. As well as a Molar Concentration of KI. 3M and H2O2 of. 1M. The equation of the reaction is 2S2O3+I3 - >3I+S4O6. The question is "How many moles of S2O3 are consumed".