Answer:
3/80 person weight is 220
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u>Step 1: Distribute
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<u>Step 2: Combine like terms
</u>
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<u>Step 3: Subtract 7 from both sides
</u>
<u />
<u>Step 4: Add 2a to both sides
</u>
<u />

<u>Step 5: Divide both sides by 4
</u>
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Answer: 
Answer:
25.12
Step-by-step explanation:
just use circumstance
Answer:
The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .
Step-by-step explanation:
The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .