The color change would only effect the appearance of the substance, so it would be a physical change.
Answer: physical change
Answer:
A. We still feel gravity because of inertia, which occurs all around us. Gravity is not felt as much because although it feels small, gravity is the attraction that keeps objects on Earth.
B. This is due to a field and a law, which states that opposites attract and like repel.
Answer:
The heating and melting of wax
Explanation:
When a candle is burned the wax heats up, but when cooled it hardens and cannot be put back into it original form.
Hope this helps
Please mark me as Brainliest
Answer:
Correct: B
Explanation:
The first block wont move because:
Σf=3-3=0N.
The second block will move because:
Σf:5-3=2N (direction to the right).
The third block will move because:
Σf=3N (direction to the right).
The number of moles of oxygen that are in 3.7 moles of C8H11NO2 is 7.4 moles
<u><em>Explanation</em></u>
- Determine the number oxygen atom in C8H12NO2
- The number of oxygen atom in C8H11NO2 are 1 x2= 2 atoms
- since they are two atoms of oxygen in C8H11NO2 the number of oxygen moles are therefore= 2 x3.7= 7.4 moles