Weather is a condition of the atmosphere at a particular time and place. Wind, rain, and cloud formations are all forms of weather phenomena. What is the primary source of energy for weather phenomena?

What is the ph of a 0.15 m solution of ammonium chloride?

Which of the following would increase the solubility of a gas in water? 1. increase the temperature of the water 2. decrease the temperature of the water 3. increase the pressure of the gas above the water

Classify each of the following as a pure substance or a mixture; if it is a mixture, state whether it is heterogeneous o bomogeneous: (a) concrete, (btomato juice. (c) marble, (d) seawater, and (e) iron.

The element hydrogen is made up of which kind (s) of atoms? A. only oxygen atoms B. only hydrogen atoms C. more hydrogen atoms than oxygen atoms D. more oxygen atoms than hydrogen atoms

Sulfuric acid is a component of acid rain formed when gaseous sulfur dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous sulfuric acid. part a write a balanced chemical equation for this reaction.

Suppose the diver at the top of a 9 m high platform has a mass of 50.0 kg. Calculate her potential energy relative to the ground. Answer in Joules.

A typical hydrogen peroxide solution from a drug store is labeled as 3.0% hydrogen peroxide. what is the other 97% of this solution?

The pressure of an enclosed gas depends on

What is one way to speed up a chemical reaction without otherwise affecting the reaction? a. add a catalyst b. decrease surface area c. change the products d. change the reactants

Why is halleys comet part of our solar system?