Answer:
3. 63 in/s
Explanation:
The hawk was going 3 ells per second, that would be 21 palms per second since every ell is 7 palms its just multiplying 3 with 7. Now, since the hawk is going 3 ells per second, you multiply the 21 by 3 and get 63.
Answer:
30 moles of water will produced.
Explanation:
Given data:
Number of moles of O₂ react = 15 mol
Number of moles of water formed = ?
Solution:
Chemical equation:
2H₂ + O₂ → 2H₂O
Now we will compare the moles of water with oxygen.
O₂ : H₂O
1 : 2
15 : 2×15 = 30 mol
30 moles of water will produced.
Answer:
electric balance, goggles, beaker
Explanation:
I did it and got it right
Answer:
No.
Explanation:
No. There is 1 atom of Ca on the left and 2 Ca's on the right and 2 OH's on the left and 4 on the right.
The balanced equation is:
4OH- + 2Ca2+ ----> 2Ca(OH)2.
