Animals breathe in_and breathe out__.

Chemistry

2 answers:

True [87]3 years ago

4 0

Answer:

1. Animals breathe in oxygen and breathe out carbon dioxide.

2. In sunlight, plants take in carbon dioxide and release oxygen.

Hope this answer will help you.

Ede4ka [16]3 years ago

4 0

Answer:

air and breathe out carbon and plants take in sun light and realese clean air

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14) The central iodine atom in the ICl4- ion has __________ nonbonded electron pairs and __________ bonded electron pairs in its

masha68 [24]

Answer:

Two non bonded electron pairs and four bonded electron pairs

Explanation:

An image of the compound as obtained from chemlibretext is attached to this answer.

The ion ICl4- ion, is an AX4E2 ion. This implies that there are four bond pairs and two lone pairs of electrons. As expected, the shape of the ion is square planar since the lone pairs are found above and below the plane of the square. This is clear from the image attached.

7 0

3 years ago

Is my answer right?

Ahat [919]

Yes the answer is 1s22s22p63s23p64s23d5

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3 years ago

Which of the following transitions represent the emission of a photon with the largest energy?

s2008m [1.1K]

Answer:

n=6 to n=3 (B)

Explanation:

Energy of an electron present in the $n^{th}$ orbit is directly proportional to $n^{2}$ .Hence a transistion from one orbit to another orbit emits an energy proportional to the difference of their squares of the orbits. that is if an electron travels from orbit n1 to orbit n2 then it emits an energy corresponding to $n_{1} ^{2} -n_{2} ^{2}$ .So in the above question the highest energy emission occurs when an electron moves from n=6 to n=3.(Highest difference of energy levels).