Answer:
the water underwent a physical change. This is because the water simply changed states, and could become liquid again, but it will remain H20 throughout the time
I think quantitative observations involve numerical descriptions relating to an object while qualitative observations involve non-numerical descriptions of an object.
In this case the object is a hailstone so quantitative observations would be things such as its volume, mass, weight, temperature, and so on. Qualitative observations would be things like its color, texture, general shape, and so on.
I hope this helps. Let me know if anything is unclear.
Note: You are calculating mass which is determine the gram(g)
You will have to cancel out the mol
(28.97 g/mol) * mol will give grams by itself
Given the mass 3.33 moles of air
28.97 g/mol * 3.33 mol = 96.47 grams
Solution: 96.5 grams
• Animals such as prairie dogs, can cause physical weathering by digging burrows.
Answer:
Single replacement reaction
Explanation:
By right, it should be called displacement reaction or redox reaction. Metal ion A in solution is reduced to form solid metal A while metal solid B is oxidised to form metal ion B.
Only 1 type of replacement occurred so it should be single replacement reaction
