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3 years ago

15

HELP ASAP WILL AWARD 60 Points

1 answer:

Sladkaya [172]3 years ago

7 0

oxygen,crabon dioxide,and glucose

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Use the van der waals equation to calculate the pressure exerted by 1.335 mol of cl2 in a volume of 4.920 l at a temperature of

nika2105 [10]

<span>Van der waal or ideal eqn is given by PV = NRT; P = NRT/ V. Where N = 1.335 is the number of moles. T = 272K is temperature. V = 4.920L is the volume. And R = 0.08205L. Substiting the values into the eqn; we have, P = (1.331* 0.08205 * 272)/ 4.920 = 29.7047/ 4.920 = 6.03atm.</span>

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3 years ago

What happens when magnesium reacts with iodine to make magnesium iodide?

I am Lyosha [343]

Explanation:

Atomic number of magnesium is 12 and its electronic distribution is 2, 8, 2. On the other hand, atomic number of iodine is 53 and its electronic configuration is $[Kr]4d^{10}5s^{2}5p^{5}$ .

Hence, there are 7 valence electrons in an iodine atom and there are 2 valence electrons in a magnesium atom.

So, one atom of iodine requires one electron from a donor atom to complete its octet. But one magnesium atom contains two valence electrons.

Therefore, one magnesium atom will combine with two iodine atoms to result in the formation of magnesium iodide as follows.

$Mg^{2+} + 2I^{-} \rightarrow MgI_{2}$

Therefore, an ionic bond will be formed when magnesium reacts with iodine to make magnesium iodide.

7 0

3 years ago

True or False. Explain the false statements:

juin [17]

A. true
b. false
c. true
d. false
e. false

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3 years ago

It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the elec

babymother [125]

Answer:

Their electrons are placed in a higher number of orbitals

Explanation:

Suppose a element be Ga .

The atomic no is 31

The configuration is given by

$\\ \sf\longmapsto 1s^22s^22p^63ss^23p^63d^{10}4s^24p^1$

Or

$\\ \sf\longmapsto [Ar]3d^{10}4s^24p^1$

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2 years ago

Which of the following can be used to find the identity of an unknown organism?

drek231 [11]

Taxonomic key hope this helps

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3 years ago

Read 2 more answers