I think It would be have to be tovuti
Answer:
Alpha
Explanation:
Based on the description, you can conclude that the alpha diversity is high.
Cheers
The answer is: [B]: " 2 " .
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Explanation:
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Given the chemical equation:
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<u> ? </u> H₂ + O₂ → 2 H₂<span>O ;
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</span> → <span> We are asked, "What coefficient, if any — should be put in front of the: " H</span>₂ " ;
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(which is on the "left-hand side" side of the chemical equation given— the "reactants") ;
→ to get a balanced chemical equation?
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→ Let us examine the "right-hand side" of this chemical equation—the product(s). In this case, the "product" given is: " 2 H₂O " .
So, on the "right hand side", we have:
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1) 4 "H's" → {Two "H₂" 's = 2 * 2 = "4 H's"} ; <u><em>and</em></u>:
2) 2 "O's" → { Two "O's").
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So, the left-hand side should have:
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1) 4 "H's" ; <u><em>and</em></u>:
2) 2 "O's" ;
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Let us examine the left-hand side (the "reactants").
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" <u> ? </u><u /> H₂ + O₂ " ;
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On the left-hand side, we already have:
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1) " 2 O's " ; → one "O₂" = "2 O's" ; and:
2) "2 H's " ; → one "H<span>₂" .</span>
Now, we would need:
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A "<u>total of "4 H's</u>". Is there any number we could put as a coefficient on the other reactant, which happens to be: "H₂" ; to make a <u><em>total of</em></u> "4 H's" ?
{Note: There are only these TWO (2) reactants in this chemical equation.}.
→ The "H₂" ; as it stands alone, is insufficient—since that would be only "2 H's".
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→ Thus, we can rule out: "Answer choices: [A] and [D]."
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<u>Note</u>:
→ Choice [A]: "1" ; The coefficient, "1"; is generally not (never?) used; and basically would function as the same as:
→ Choice: [D]: "<span>no coefficient is needed".
</span>→ <span>Choices [A] & [D]: would leave us with only "2 H's" on the "reactants side" (i.e. "left-hand side of the equation"; and we need FOUR ("4 H's").
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Since we are given: "H</span>₂" ; what coefficient could we put in front of this to get: "4 H's" ? (4÷2 =2). So we could put a "2" in front of the "H₂" ; to get:
"4 H's". The coefficient, "2" , corresponds directly with:
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→ Answer choice: [B]: "2" .
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{ <u>NOTE</u>: The remaining answer choice, [C], which is, "3" ; is INCORRECT; since 3 "H₂'s" would be "6 H's" ; (since 3 * "2 H's" equal "6 H's") ; which is too many "H's" → We need <u>exactly</u> "4 H's".}.
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So, the correctly balanced equation is:
2 H₂ + O₂ → 2 H₂O ;
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→ The coefficient that goes before the "H₂" ; to make this chemical equation balanced, is: "2" .
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The correct answer is: [B]: "2" .
→ The coefficient that goes before the "H₂" is: "2" .
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Hope this answer—and {lengthy} explanation—is of help!
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Answer:
7. There are different tools needed in repairing computer, which of the following categories does parts retriever, screw driver, wire cutter and long nose plier belongs?
D. Hand tools
8. Which of the following hand tools also known as nut driver?
B. hex driver
9. Which of the following tools does NOT belong to cleaning tools?
A. anti-static wrist strap
10. When cleaning computer system unit, which of the following tools is best used to blow
away dust in electronic components?
A. compressed air
Explanation:
