4 years ago

A trait developed through learning is a(n)___________

Chemistry

2 answers:

Helen [10]4 years ago

8 0

A trait developed through learning is an ACQUIRED TRAIT.

matrenka [14]4 years ago

5 0

An acquired trait is a trait developed through learning. (:

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If 0.500 mol of NaN3 react what mass I'm grams of nitrogen would result

klemol [59]

Looks like 3*.5 mol of N, or 1.5*.5 N2
<span>convert that to grams.</span>

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3 years ago

What do the individual spheres represent in the model!

Trava [24]

Answer:

the individual atom in the molecule

Explanation:

In chemistry, the ball-and-stick model is a molecular model of a chemical substance. Invidual spheres there represent atoms in the molecule. The bigger atomic number the atom has, the larger diameter of the spheres this atom has in this model.

I hope this answer will help you. Have a nice day !

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3 years ago

Can someone help me with #35,37,39,41 please

adoni [48]

35 b.
37 h
39 i
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3 years ago

The molarity of an aqueous sodium phosphate solution is 0.650 M. What is the molality of sodium ions present in this solution? T

netineya [11]

Answer:

molality of sodium ions is 1.473 m

Explanation:

Molarity is moles of solute per litre of solution

Molality is moles of solute per kg of solvent.

The volume of solution = 1 L

The mass of solution = volume X density = 1000mL X 1.43 = 1430 grams

The mass of solute = moles X molar mass of sodium phosphate = 0.65X164

mass of solute = 106.6 grams

the mass of solvent = 1430 - 106.6 = 1323.4 grams = 1.3234 Kg

the molality = $\frac{moles of solute}{mass of solvent in kg}=\frac{0.65}{1.323}= 0.491m$

Thus molality of sodium phosphate is 0.491 m

Each sodium phosphate of molecule will give three sodium ions.

Thus molality of sodium ions = 3 X 0.491 = 1.473 m

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3 years ago

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4vir4ik [10]

A magical or medicinal potion/solution

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