SO4 -2, or Sulfate
Hope this helps! :)
To crsuh things, probs so they can dissolve them into a liquid
Answer:

Explanation:
Hello,
In this case, the combustion of octane is chemically expressed by:

In such a way, due to the 25/2:8 molar ratio between oxygen and carbon dioxide, we can compute the yielded grams of carbon dioxide (molar mass 44 g/mol) as shown below:

Best regards.
Answer:
I think it is AM and frequency
Explanation:
Sorry if i'm wrong ;)
Answer: Water
Explanation: Water is an example of transparent because light can pass through it. Air is also an example.