Add 145, 156, 210. and 255 then divide by 4. The mean equals 184.
Answer:
25%
Step-by-step explanation:
.25(3,600)=900
3,600+900=4,500
Answer and Step-by-step explanation:
For these, you have to make sure the same amount of moles are on each side of the chemical equation.
→ 
→ 
→ 
These are the balanced equations.
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You would have a grade of an 88%
6.81 times 10^16 is the answer in scientific notation