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Lapatulllka [165]
3 years ago
5

1. Which type of blood cell is the most numerous in the body?

Chemistry
2 answers:
meriva3 years ago
8 0

Answer:

red blood cells

Explanation:

I'm not so sure though

Vladimir [108]3 years ago
6 0

Answer:

a

Explanation:

red blood cells

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What is the mass of 3.8 × 1024 atoms of argon (Ar)?
gulaghasi [49]
40 g Ar.......6.023*10^23 atoms
x g Ar.......3.8*10^24 atoms
x=40*3.8*10^24/(6.023*10^23)=252,365g Ar
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Nitrogen monoxide is produced by combustion in an automobile engine. What volume of oxygen gas is required to react completely w
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5 0
3 years ago
Determine the molar mass of Ze(NO3)2. (Ze=55.85 N=14.01 O=16.00) *<br> Help
Arturiano [62]

Answer:

179.87 g/mol

Explanation:

First you need to determine the number of each elements in the molecule.  This information comes from the molecular formula.  

Ze(NO3)2 tells us that there is 1 Ze atom and 2 NO3 anions per molecule.  each NO3 anion will have 1 nitrogen and 3 oxygens.  Due to that, one molecule of Ze(NO3)2 will have 1 atom of Ze, 2 atoms of nitrogen (N), and 6 atoms of oxygen (O).

Next you need to add all of the individual atom's molar masses to get the over all molar masses.  The molar masses of each element is in the question but it can also be found on the periodic table.

molar mass of Ze(NO3)2 = 55.85g/mol + (14.01g/mol*2) + (16.00g/mol*6)

molar mass of Ze(NO3)2 = 179.87 g/mol

I hope this helps.

5 0
2 years ago
PLEASE HELP!!
viktelen [127]
Grienr rjr or rjr rjr r
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3 years ago
PLEASE HELP
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Mk i will comment so u can make them brainliest lols
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