Calculate the pH if the [H+} = 0.0030 M

In which phase(s) do the molecules take the shape of the container?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?