The chemical formula for water is H2<span>O which means that every </span>molecule<span> of water has 2 </span>atoms<span> of hydrogen (H) and one </span>atom<span> of oxygen (O). Here comes the key part. From the Periodic Table of Elements, one sees that one mole of hydrogen </span>atoms weighs <span>1 gram while one mole of oxygen </span>atoms<span> weighs 16 grams.</span>
Answer:
it is D
Step-by-step explanation:
Answer: A and B
Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.
Hope that’s helps シ
I need to write at least 20 charachers,soooooo...
We solve 6 + 4
6 + 4 = 10.
Square root of 10:
<span>The square root of 10 is a periodic decimal (decimal that has infinite decimals, worth the redundancy)
What is that periodic decimal?
</span>
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REGARDS!</u>
