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just olya [345]
3 years ago
15

Which information in the periodic table indicates the number of protons in an atom?      A. the position of the element in its c

olumn              B. the element’s chemical symbol C.the element’s atomic mass D. the element’s atomic number
Chemistry
2 answers:
daser333 [38]3 years ago
5 0
HEYA!!!

The answer to your question is D.

Because atomic no. refers to no. of protons.

I hope it works out..

:)
Leni [432]3 years ago
3 0
Hi there!


D is true

the number of protons is same as atomic number in an atom


good luck!
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Potassium permanganate, KMnO, and glycerin, C3H5(OH)3, react explosively according to the
Finger [1]

The volume of CO2 at STP =124.298 L

<h3>Further explanation</h3>

Given

Reaction

4 KMnO4, +4 C3H5(OH)5, -7K2CO3, + 7 Mn2O3, +5 CO2, + 16 H2O

701,52 g of KMnO4

Required

volume of CO2 at STP

Solution

mol KMnO4 (MW=158,034 g/mol) :

mol = mass : MW

mol = 701.52 : 158.034

mol = 4.439

mol CO2 from equation : 5/4 x mol KMnO4 = 5/4 x 4.439 = 5.549

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=5.549 x 22.4

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4 0
3 years ago
What is mass in g of 15.5 moles of calcium?
padilas [110]

Answer:

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