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Ilya [14]
3 years ago
9

Will mark as Brainliest.

Chemistry
1 answer:
8090 [49]3 years ago
3 0

The answer is A) Aluminum chloride - It does not have the prefix "tri-" since it is ionic.

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Can atoms be created or destroyed during a chemical reaction?
ValentinkaMS [17]

Answer:

No.

Explanation:

During chemical reaction, atomes cannot be created or destroyed, they can only react together to form <em>E</em><em>l</em><em>e</em><em>m</em><em>e</em><em>n</em><em>t</em><em> </em>or <em>C</em><em>o</em><em>m</em><em>p</em><em>o</em><em>u</em><em>n</em><em>d</em><em> </em>at the <em>P</em><em>r</em><em>o</em><em>d</em><em>u</em><em>c</em><em>t</em><em> </em>side.

7 0
2 years ago
What is released when a election returns to a lower state of energy
elena-14-01-66 [18.8K]
Well basically, light is released when an excited electron returns to a lower energy state. Visible Light is part of the electromagnetic spectrum, and is a kind of radiation emitted.
3 0
3 years ago
How many molecules are in 4.00 x 10^2mg of ibuprofen?
Serggg [28]
Start by converting mg to g. There is .001g in every miligram, so there is 0.4g in this sample.

Then find the molar mass of ibuprofen (C13H18O2) which is 206.3g/mol

Then divide grams by the molar mass to get moles of C13H18O2: (0.4g)/(206.3g/mol) = 1.94x10^-3mol C13H18O2

Then multiply moles by Avogadro's number to get molecules: (1.94x10^-3mol)/(6.02x10^23) = 1.17x10^21 molecules of ibuprofen (C13H18O2)
3 0
3 years ago
How many moles of water, H2O, contain 2.0×1022 molecules of water? (See the hints for assistance in interpreting scientific nota
hammer [34]
You have to use Avogadro's number which is 6.02x10^23.  The units of Avogadro's number is molecules/mole so you divide the number of molecules by Avogadro's number which will give you the number of moles.
(2.0x10^22 molecules)/(6.02x10^23 molecules/mole)=0.033 moles
5 0
3 years ago
Which of the following is NOT a function of bones?
saveliy_v [14]

Answer:

d

Explanation:

all of the above are functions of bones

8 0
2 years ago
Read 2 more answers
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