Uhhhhh probably C I’m not sure tho:/
You divide 690 by 100 which is 6.9
Therefore, one 50cent coin is 6.9g
If you spin on the spot and go completely around just once and stop, you "did a 360" since you moved in a circle and circles have 360 degrees.
So a 720 would be two complete turns and a 540 would be 1 and a half complete turns.
The number is <em>the amount of degrees they rotated through</em>. What's cool is, snow boarders do this while in mid air as a trick when going over jumps.
Answer:
1.8 speed
Step-by-step explanation:
Answer:
4.13E23 molecules
Step-by-step explanation:
Molar mass HCl = 36.4611 g/mol
25.0g = 25/36.4611 = 0.686 mol HCl
1 mol HCl = 6.022*10^23 molecules
0.686 mol = 0.686*6.022*10^23 = 4.13*10^23 molecules.
