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insens350 [35]
2 years ago
9

What are some questions you would ask to learn more about the toxic algal bloom in Lake Temescal? Include at least two questions

*
Chemistry
1 answer:
Darina [25.2K]2 years ago
5 0

Answer:

How can we prevent harmful algae blooms?

How do you know if algal blooms are harmful?

Explanation:

I hope this helps

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An unknown solution has a pH of 7.2. Which of these chemicals is likely to cause the greatest decrease in the pH of the solution
prohojiy [21]

Answer:

HNO₃.

Explanation:

  • It is known that acids decrease the pH of the solution, while bases increase  the pH of the solution.

So, HF and HNO₃ decrease the pH of the solution as they produce H⁺ in the solution.

While, KOH and NH₃ increase the pH of the solution as they produce OH⁻ in the solution.

HNO₃ will decrease the pH of the solution greater than HF.

  • Because HNO₃ is strong acid that decomposes completely to produce H⁺ more than the same concentration of HF that is a weak acid which does not decomposed completely to produce H⁺.
7 0
3 years ago
As a result of the gold foil experiment, it was concluded that an atom(1) contains protons, neutrons, and electrons(2) contains
grin007 [14]
The answer is (2). If you recall Rutherford's gold foil experiment, remember that a stream of positively charged alpha particles were shot at a gold foil in the center of a detector ring. The important observation was that although most of the particles passed straight through the foil without being deflected, a tiny fraction of the alpha particles were deflected off the axis of the shot, and some were even deflected almost back to the point from which they were shot. The fact that some of the alpha particles were deflected indicated a positive charge (because same charges repel), and the fact that only a small fraction of the particles were deflected indicated that the positive charge was concentrated in a small area, probably residing at the center of the atom.
8 0
2 years ago
Explain electronegativity and how it relates to both molecular and ionic bonding.
Keith_Richards [23]

Answer:

Mama Mo Blue Tun Po

<h2>Explanation:</h2><h2><em><u>HOPE</u></em><em><u> </u></em><em><u>THIS</u></em><em><u> </u></em><em><u>HELPS</u></em><em><u> </u></em><em><u>PO</u></em><em><u> </u></em><em><u>:</u></em><em><u>D</u></em></h2>

3 0
2 years ago
Name the type of chemical reaction : CaO(s) + H2O(l) -----------Ca(OH)2(aq)
Anna [14]
It is called Synthesis reaction
5 0
2 years ago
What kind of solution would you have if it contained 50 grams of sodium chloride in 100 mL of water at 30˚C?
Svetlanka [38]

Answer:

Supersaturated solution.

Explanation:

Hello!

In this case, according to the types of solution in terms of the relative amounts of solute and solvent, we can define a point called solubility at which the amount of solute is no longer dissolved in the solvent; thus, a value of solute/solvent less than the solubility is related to unsaturated solutions, equal to the solubility is related to the saturated solutions and more than the solubility to supersaturated solutions.

Thus, since solubility is temperature-dependent, at 30 °C the solubility of sodium chloride is 36.09 g per 100 mL of water; which means that, since the solution has 50 g of sodium chloride, more than 36.09 g, we infer this is a supersaturated solution.

Best regards!

5 0
2 years ago
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