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4 years ago

Is symbiosis a behavior that exists strictly between two different animal species?

2 answers:

5 0

No. Symbiosis exists with all life forms. For example, the sloth can grow algae (a plant) on its back. The sloth gets a bit of protection and the algae lives (Mutualism.)

il63 [147K]4 years ago

3 0

Symbiosis can exist with different life forms

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List 3 elements with 6 valence electrons

ra1l [238]

oxygen, sulfur, selenium

3 0

3 years ago

HELP PLEASE!!!!!!!

ololo11 [35]

Answer:

Try a grams calculator, Its pretty to nd one :D

Explanation:

8 0

3 years ago

An aqueous solution was created by placing 0.018 g of NaCl into a 50 mL volumetric flask and diluting to volume with deionized w

Burka [1]

Answer:

Molarity: 6.2x10⁻³M NaCl

Molality: 6.2x10⁻³m NaCl

Mole Fraction: 1.1x10⁻⁴

Mass% NaCl: 0.036% (m/m NaCl)

Explanation:

<em>Molarity -Moles NaCl / L-</em>

<em>Moles NaCl -Molar mass: 58.44g/mol-</em>

0.018g * (1mol/58.44g) = <em>0.000308 moles NaCl</em>

<em>Liters water:</em>

50mL * (1L/1000mL) = <em>0.050L</em>

M = 0.000308 moles NaCl / 0.050L

<em>Molality -Moles NaCl / kg water-</em>

<em>Moles NaCl = 0.000308 moles NaCl</em>

<em>kg water = 50mL * (1g/mL) * (1kg/1000g) = 0.050kg</em>

m = 0.000308 moles NaCl / 0.050kg

<em>Mole Fraction -Moles NaCl / Moles water+ Moles NaCl-</em>

<em>Moles water = 50g * (1mol/18.01g) = 2.776 moles</em>

Moles fraction = 0.000308 moles NaCl / 0.000308 moles NaCl + 2.776moles water

<h3>Mole fraction = 1.1x10⁻⁴</h3><h3 />

<em>Mass Percent -Mass NaCl / Mass NaCl+Mass Water * 100</em>

0.018g / 50g+0.018g * 100

<em />

8 0

3 years ago

Mention three scientist that defined acid

kirill [66]

Answer:

1. Svante Arrhenius

2. Johannes Nicolaus Brønsted and Thomas Martin Lowry

3. Gilbert N. Lewis

Explanation:

The scientist mentioned above researched and made their tested hypothesis available for further research to be built on them and they do these researches to help human understanding of the field and therefore improve knowledge.

Through their different definitions of acid which includes the ability of hydrogen ion (H+) to be produced when a substance is separated from water, the ability of acid to donate a proton (H +), It can be concluded that acids contain hydrogen and they have the ability to donate that (H +) to other substance.

6 0

3 years ago

Which has more mass, a mole of water (H2O) or a mole of glucose (C6H12O6)? a. water b. glucose c. The masses are the same

riadik2000 [5.3K]

The correct answer is A

8 0

3 years ago