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Black_prince [1.1K]
2 years ago
13

A certain food web is made up of turtles, pond weeds, water fleas, and tadpoles. Which organism is most likely the producer in t

his food web?
Turtles
Pond Weeds
Tadpoles
Water fleas
Chemistry
2 answers:
Simora [160]2 years ago
6 0
The pond weeds are the producers because they are a plant
IrinaK [193]2 years ago
5 0

Answer:

Answer: Pond weeds

Explanation:

Pond weeds are plants that generates in water ponds. Water fleas eat pond weeds, tadpoles eat water fleas, turtles eat tadpoles.

So, Pond weeds are the producer in the food web.

<h3 />
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Which element ends in 4d2
Tju [1.3M]

Answer:

Zr (Zirconium)

Explanation:

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2

3 0
2 years ago
Write a net ionic equation to show that hydroiodic acid, hi, behaves as an acid in water.
OlgaM077 [116]

Answer:

HI(aq) + H₂O(ℓ) ⟶ H₃O⁺(aq) + I⁻(aq)

Explanation:

The HI donates a proton to the water, converting it to a hydronium ion

HI(aq) + H₂O(ℓ) ⟶ H₃O⁺(aq) + I⁻(aq)

Thus, the HI is behaving like a Brønsted acid.

3 0
3 years ago
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Give example of 1 solid, 1 liquid and 1 gas solution. <br> Captionless Image
lana66690 [7]
Ice, water, fog/water vapor
7 0
2 years ago
1. A contour line represents a single equal elevation: that is, all points on the same contour line have the same elevation.
Lady bird [3.3K]
The answer is hard to give without any information.
3 0
1 year ago
When 16.0 g of an unknown compound (a nonelectrolyte) are dis solved in exactly 800. g of water, the solution has a freezing poi
dexar [7]

Answer:

A. 266g/mol

Explanation:

A colligative property of matter is freezing point depression. The formula is:

ΔT = i×Kf×m <em>(1)</em>

Where:

ΔT is change in temperature (0°C - -0,14°C = 0,14°C)i is Van't Hoff factor (1 for a nonelectrolyte dissolved in water), kf is freezing point molar constant of solvent (1,86°Cm⁻¹) and m is molality of the solution (moles of solute per kg of solution). The mass of the solution is 816,0g

Replacing in (1):

0,14°C = 1×1,86°Cm⁻¹× mol Solute / 0,816kg

<em>0,0614 = mol of solute</em>.

As molar mass is defined as grams per mole of substance and the compound weights 16,0g:

16,0g / 0,0614 mol = 261 g/mol ≈ <em>A. 266g/mol</em>

I hope it helps!

3 0
3 years ago
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