NH3 is a gas at room temperature. Solutions of "ammonia" are made by bubbling NH3 through water, so there's no "pure ammonia" unless you are talking about the gas.
You need to check the weather to make sure its safe to hang glide, think about it you wouldn't want to go out and hang glide during a storm and if its not bad weather when you start, it could change depending on the forecast. So its good to always check and make sure there are no surprises when you are up in the sky.<span />
To find the mass you you need multiply its volume by its density.
6 cm^3 • 2.76 g/cm^3 = 16.56 g
Answer:
Observational Data
Explanation:
Observational data are captured through observation of a behavior or activity.
<span>The reasons to use insoluble salts to soften water would be to make the water more potable, and to enable better sudsing when washing clothes, dishes, or for taking showers.
Hard water tends to decay pipes at a faster rate, leave deposits on sinks, tubs, and toilets.
Hard water has a high percentage of calcium and other minerals that have an unpleasant taste and will often cause the joints between pipes to start leaking much much sooner than they would otherwise.</span>