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natima [27]
3 years ago
14

A person exhales carbon dioxide and moisture. Which example of the characteristics of life is most similar? A. A gazelle runs aw

ay from a lioness. B. An algal cell has a defined boundary. C. A dog defecates when outdoors on a walk. D. A 12-year-old boy’s voice breaks.
Chemistry
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

D

Explanation:

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ella [17]

Answer:

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I'm in high-school done this long time ago

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3 years ago
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Match each renewable energy source with the correct description. solar cell converts sunlight into electricity geothermal energy
natka813 [3]

Answer:

Explanation:

solar cell - converts sunlight into electricity

geothermal energy - heat produced within the Earth​

wave energy - turns turbines along coastlines

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7 0
2 years ago
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2.40 g of NH4Cl is added to 19.4 g of water. Calculate the molality of the solution.
Sholpan [36]
Molality is the moles of solute per kg of solvent.

Moles of NH₄Cl = 2.4 / (14 + 4 x 1 + 35.5)
= 0.0448 mole

Molality = 0.0448 / (19.4 / 1000)
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3 0
3 years ago
Which of the following is an example of a molecule?
xxMikexx [17]
O2 is an example of a molecule
5 0
3 years ago
Which type of hybridization is observed when central atom is located at the centre of regular tetrahedron
Ann [662]

Answer:

sp3 hybridization

Explanation:

Hybridization means the mixing of atomic orbitals to yield hybrid orbitals with characteristics that are different from that of the isolated atomic orbitals before the combination.

sp3 hybridization occurs when one s orbital is mixed with three p orbitals to yield four sp3 hybrid orbitals which can be used to bond to a central atom.

The central atom is then located at the center of a regular tetrahedron at a bond angle of 109°.

3 0
2 years ago
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