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Whitepunk [10]
3 years ago
7

Scientists are often interested in knowing the molar heat of combustion the heat released during the combustion of one molar of

a substance use a periodic table to find molar masses.
How many moles of ethanol are present in the sample?

? Mol
Chemistry
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

.004993

Explanation:

lozanna [386]3 years ago
6 0

Answer: .004993

Explanation:

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A for me

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I dont know what you mean by this as this is an opinon question

7 0
2 years ago
How many moles of Fe contains 3.41 x 1023 Fe atoms?
Liula [17]

Answer:

Explanation:

28个

8 0
3 years ago
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Kinetic energy is a measure of the motion of?
zmey [24]

Mass motion

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5 0
2 years ago
Can someone help me with number 4? Please and thank you
kipiarov [429]

Answer:

1st Blank: <em>1 Co</em>

2nd Blank:<em> 2 Na2S</em>

3rd Blank:<em> 4 Na</em>

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Explanation:

<em>Trust me</em>

6 0
3 years ago
Consider the set of isoelectronic atoms and ions a2–, b–, c, d+, and e2+. which arrangement of relative radii is correct?
faust18 [17]
The term isoelectronic atoms means that if the given atoms are neutral, they would have the same number of electrons, which is relative to their sizes. Ions with positive charges are called cations, losing electrons. On the other hand, ions with negative charges are called anions, gaining electrons. The more electrons that the atoms have, the bigger it is in size. Hence, the arrangement of the radii of the atoms would have to be,

      e²⁺, d⁺, c , b⁻, a⁻

The arrangement is from smallest to largest.
7 0
3 years ago
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