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notka56 [123]
3 years ago
5

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

Chemistry
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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42 Which statement explains why a CO2 molecule is nonpolar?(1) Carbon and oxygen are both nonmetals.
Mama L [17]
The answer is (3)
 I always use the acronym SNAP
S- symmetrical is
N- Non-polar
A- asymmetrical is
P-Polar
7 0
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List three Chemical Properties of Cherry Soda
zmey [24]

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carbon, corn syrup, sugars

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Five elements named after color
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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
5. How many formula units are in 1.62 moles of magnesium iodide?
PIT_PIT [208]

Answer: 9.75 x10^23

Explanation: you do 6.02x10^23 times 1.62. And then round to three digits.

6 0
3 years ago
PLS HELPPP How many moles of oxygen atoms (not molecules) are present in 6.41×1025 molecules of dinitrogen pentoxide (N2O5)? 1.
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.

5 0
3 years ago
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