Answer:
28g
Solution. Hence, 2 moles of nitrogen atoms weigh 28g.
Physical, because the ice is only changing it's state. It's not changing to a new substance.
There is no element in 2s3
Riley can either change the surface area of the object or can change the slipperiness of the material.
Answer:
Techniques and Tests
Qualitative analysis typically measures changes in color, melting point, odor, reactivity, radioactivity, boiling point, bubble production, and precipitation.