Answer:
A.......
Explanation: The sun is the main source of energy
Answer:
9x+y+8
Explanation:
We know this because you add 3x and 6x to get 9x
then we only have one y so put y by itself then subtract 15 and y which gets us 8
Answer:
3
Explanation:
102 are significant figures
Precipitation, acid-base, and oxidation-reduction reactions are the three most common types of chemical reactions.
When dissolved substances react, one (or more) solid products are produced, which is known as Precipitation reaction. These kinds of reactions, which are also occasionally known as double displacement, double replacement, or metathesis reactions, frequently involve the exchange of ions between ionic compounds in aqueous solutions. These interactions, which occur frequently in nature, are what cause kidney stones in mammals and coral reefs to grow in ocean waters. They are extensively utilized in industry to produce a variety of common and specialized compounds. Many chemical analysis procedures, such as gravimetric methods for figuring out the composition of matter and spot tests used to identify metal ions, heavily rely on precipitation reactions as well. This is called Precipitation reaction.
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