3 years ago

Humans are protected from some infection by specialized cells which produce chemicals that

1 answer:

34kurt3 years ago

8 0

Humans are protected from some infection by specialized cells which produce chemicals that <span>recycle nutrients.</span>

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Mama L [17]

The answer is (3)
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S- symmetrical is
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A- asymmetrical is
P-Polar

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3 years ago

zmey [24]

Answer:

carbon, corn syrup, sugars

Explanation:

i dont know for sure, but i learned this in biology last year

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3 years ago

Dmitry [639]

Caesium -bluish(Latin) Chlorine -yellow/green (Greek) Iodine -violet (Greek) <span>Rhodium -rose (Greek) Sulphur - yellow (Arabic)</span>

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3 years ago

PIT_PIT [208]

Answer: 9.75 x10^23

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3 years ago

olga55 [171]

Answer:

(4) 266 moles

Explanation:

We have Dinitrogen Pentoxide N2O5

6.41*10^25 molecules are given

No of Moles of N2O5 = $\frac{No of Molecules }{Avogadro's Number}$

= $\frac{6.41 * 10^25}{6.022*10^23}$

= 106.5 mol

Now using Unitary Method

2 Mole of Nitrogen pentoxide require 5 mole of Oxygen to form N2O5

1 mole of N = $\frac{5}{2}*O$

In 106.5 mole of N = $\frac{5}{2}*106.5$ = 266.25 mole

So, 6.41*10^25 molecules of N2O5 will require 266.25 mole of Oxygen atoms.

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3 years ago