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Reika [66]
3 years ago
12

NEED HELP ASAP

Chemistry
1 answer:
joja [24]3 years ago
3 0

A.Shield Volcano -----



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The nuclear mass of 56fe is 55.9207 amu. calculate the binding energy per nucleon for 56fe.
Aneli [31]

Fe (iron) has 26 protons,30 neutrons and 26 electrons. In order to calculate the binding energy, first you need to find the total mass of all particles in the nucleus:

<span>
<span>26 x mass of proton + 30 x mass of neutron ( all in a.m.u.) = say "m" </span></span>

<span>
Mass defect is m- 55.9207 amu, then convert it into grams and put in equation E = mc2 to get binding energy of Fe.</span>

<span> Divide it by number of nucleons to get binding energy per nucleon</span>.

8 0
3 years ago
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How do I answer question 4
lidiya [134]

One box is 120g.

mass of 126 boxes = 126*120 = 15120 g

(note: used an additional significant figure when first digit is a 1, so four significant figures)

Using the conversion 1 lb. = 453.6 g/lb

15120g = 15120 g / (453.6 g/lb) = 15120 g * (1/453.6) lb/g = 33.3 lbs. (3 significant figures)

3 0
3 years ago
As water evaporates from an open container at 40°C, which one of the following is true?
Marianna [84]
The vapor molecules have greater KE than the liquid ones have. That"s how they break free of the liquid and waft away.
6 0
2 years ago
Which of the following tend to possess the same number of outer electrons? A. all molecules with the same number of atoms B. all
exis [7]

Answer:

the answer would be "B"

Explanation:

Elements with the same number of valence electrons are found in the same column of the Periodic Table. All elements in the first column of the Periodic Table have 1 valence electron in an s orbital. These elements are known as Group 1A metals or alkali metals.

5 0
3 years ago
HELP ME PLSSSSSS need this answered asap
Klio2033 [76]

Answer:

A

Explanation:

I am very good in science (please give brainliest)

8 0
2 years ago
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