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sammy [17]
2 years ago
8

Which organism is in Kingdom Protista? A. bacteria B. virus C. fungi D. seaweed

Chemistry
2 answers:
tresset_1 [31]2 years ago
5 0

Answer:

The answer to this question is, D) seaweed

Explanation:

Okay Kingdom protista containes protaza and algae, seaweed are algae. hope this helps

vovikov84 [41]2 years ago
4 0

Answer: A

Explanation:Idk

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A researcher recorder that a chemical reaction require 2.90 gal water and raised the temperature of the reaction vessel by 57°F.
Ivan

Answer:

10.875L

Explanation:

The problem here is a simple conversion. The conversion is from gal to liters Liter is a SI unit for recording volume as stated in the problem.

Given that:

              1 gallon of water = 3.75L

              2.90 gallon will be 2.9 x 3.75; 10.875L

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3 years ago
Why aluminum in 1820 had more value than gold​
bonufazy [111]

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Aluminum had more value than gold in the 1820s, because it was harder to obtain. Hope this helped :)

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2 years ago
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RUDIKE [14]

Answer:

Explanation:

3.12

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2 years ago
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3 years ago
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6.5 Moles of Al reacts with 7.2 Moles of H2O What is the limiting reactant and calculate the Theoretical Yield?
SVEN [57.7K]

Answer:

H₂O is the limiting reactant

Theoretical yield of 240 g Al₂O₃ and 14 g H₂

Explanation:

Find how many moles of one reactant is needed to completely react with the other.

6.5 mol Al × (3 mol H₂O / 2 mol Al) = 9.75 mol H₂O

We need 9.75 mol of H₂O to completely react with 6.5 mol of Al.  But we only have 7.2 mol of H₂O.  Therefore, H₂O is the limiting reactant.

Now find the theoretical yield:

7.2 mol H₂O × (1 mol Al₂O₃ / 3 mol H₂O) × (102 g Al₂O₃ / mol Al₂O₃) ≈ 240 g Al₂O₃

7.2 mol H₂O × (3 mol H₂ / 3 mol H₂O) × (2 g H₂ / mol H₂) ≈ 14 g H₂

Since the data was given to two significant figures, we must round our answer to two significant figures as well.

4 0
3 years ago
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