What is an example of chemical weathering

1. acid rain falls on rocks

2. chemicals from plants on rocks

3. water reacting with minerals on rock

4. All

The pH of a strong base is 12.2 at 25 degrees. what is its hydroxide-ion concentration?

An open flask is half filled with water at 25°C. Phase equilibrium can be reached after (1) more water is added to the flask (2) the flask is stoppered (3) the temperature is decreased to 15°C (4) the temperature is increased to 35°C

Which of the following are not created by an arrangement of electric charges or a current (the flow of electric charges) ? A. An electric field B. A magnetic field C. A quantum field D. A gravitational field

How many liters of 0.98 M have solution would react completely with 3.5 moles ca (oh) 2

Why is coal not classified as a mineral? It is not a solid. It is does not occur naturally. It has no crystal shape. It is made of organic material.

What is the heat energy released? Estimate the heat energy released when one mole of the of the fuel molecule acetylene C2H2 undergoes complete combustion with oxygen to form carbon dioxide and water.

When chemical x is reduced, which of these expressions would be an accurate representation of its reduced state?

Which of the following samples will have the greatest volume at STP? 22 g CO 22 g He 22 g O2 22 g Cl2 All of these samples would have the same volume at STP.

How do I get the answer for 105 Fahrenheit to Celsius

Open-ended question: Differentiate between a solution and a two phase mixture. Brass is would be classified as which one of them? Which would you classify a salad as?