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belka [17]
3 years ago
10

The data in the table are the result of a paramecium being placed in a hypertonic salt solution.

Chemistry
2 answers:
dlinn [17]3 years ago
7 0

Answer: salt concentration outside paramecium

Explanation:

kolezko [41]3 years ago
3 0
<span>the answer is
C. The bar for very low concentration is twice the height of the bar for medium concentration.

proof
</span>
<span>
</span>
<span>Medium--------------------15

</span>Very Low-------------------30 = 2<span /> x 15 (<span>Medium)
</span>



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There are 30.974 grams of phosphorus in one mole. approximately how many atoms of phosphorus are there in one mole? (5.01) 6.02
koban [17]

There are approximately 6.02 × 10²³ atoms of phosphorus in one mole of 30.974 grams of phosphorus (option A).

<h3>How to calculate number of atoms?</h3>

The number of atoms of a substance can be calculated by multiplying the number of moles of the substance by Avogadro's number. That is;

no of atoms = no of moles × 6.02 × 10²³

According to this question, there are 30.974 grams of phosphorus in one mole of phosphorus. The number of atoms can be calculated as follows:

no of moles of P = 30.974g ÷ 31g/mol = 0.99mol

number of atoms = 0.99 mol × 6.02 × 10²³

number of atoms = 6.02 × 10²³ atoms

Therefore, there are approximately 6.02 × 10²³ atoms of phosphorus in one mole of 30.974 grams of phosphorus.

Learn more about number of atoms at: brainly.com/question/8834373

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5 0
2 years ago
What environmental factors might make a strong odor an advantage for the
Molodets [167]

Answer:

Rafflesia smell like roadkill others for only a few hours and while a few smaller species barely smell at all. And In short  a parasitic life is heavily specialized biological requirements.

Explanation:

6 0
3 years ago
Question 7
motikmotik

Answer:

10 neutron

Explanation:

No.of neutron=Mass no. -- atm no.(or no.of p)

No of neutron=19 -- 9

=10

3 0
3 years ago
When a negatively charged species is most appropriately depicted as a hybrid of several resonance forms, the negative charge pre
Varvara68 [4.7K]

Answer:

True

Explanation:

Resonance is a concept that was introduced when it was not possible to represent a compound with a single Lewis structure. Lewis formulas represent localized electrons, either shared by two atoms in a covalent bond or as non-shared electrons belonging to a given atom. Certain organic compounds, especially those containing multiple bonds can be described by more than one Lewis structure. In these cases, the true Lewis structure has an electronic distribution that is a "hybrid" of all possible Lewis structures of that molecule. Each of Lewis's structures is known as resonance or canonical forms and they are related to each other by a double-headed arrow, where all possible positions of electrons in that molecule are represented.

This type of compound has multiple bonds (double or triple) where electrons are not fixed, but move quickly between atoms, "resonating" between the different Lewis structures. For this reason, when a resonance hybrid has a negative charge, this charge moves between the different resonant structures.

Many times, an intermediate Lewis structure is drawn, with dotted lines, simulating approaching the real structure of the compound, and where this phenomenon of electron and charge mobility can be observed. For example, as we can observe in the ozone resonance image.

5 0
3 years ago
Which of the following are cations? Check all that apply.
Lostsunrise [7]

Answer:

a

barium

b

calcium

e

aluminum

f

magnesium

g

copper

Forms cation

Explanation:

4 0
3 years ago
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