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Lina20 [59]
3 years ago
5

Please I need this help me​

Chemistry
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

first of all is that really chemistry

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An element consists of 5.85% of an isotope with mass 53.940 u, 91.75% of an isotope with mass 55.9349 u, 2.12% of an isotope wit
Gemiola [76]

Answer:

The answer to your question is: 55.84 u. The element is Iron

Explanation:

isotope 1    mass 53.94 u        abundance  5.85%

             2   mass 55.9349      abundance 91.75%

            3    mass 56.9354       abundance 2.12%

             4    mass 57.9333      abundance 0.28%

average atomic mass = (53.94 x 0.0585) + (55.9349 x 0.9175) + (56.9354 x 0.0212) + (57.9333 x 0.0028)

average atomic mass = 3.155 + 51.32 + 1.207 + 0.1622

average atomic mass = 55.84 u. The element is Iron

4 0
3 years ago
Chlorine concentration in a municipal water supply is a uniformly distributed random variable that ranges between 0.76 ppm and 0
grandymaker [24]
With that information you can calculate the mean or average.

Given that it is uniformly distributed in that range, it means that the function is symmetrical around the mean, i.e. the mean is at the center of the distribution => mean = (0.99 + 0.76) / 2  = 0.875
3 0
3 years ago
Calculate the standard entropy change for the following reaction cu(s) + 1/2 O2(g) —> cuo(s)
Evgen [1.6K]

3433Explanation:

the awser sucks and its not RIGHT

8 0
3 years ago
Read 2 more answers
Potassium chloride and water for from the reaction of an acid base THEREFORE KCI is a .....
nordsb [41]
It is a salt and salt salt and
4 0
3 years ago
Need this ASAP so hury up​
Genrish500 [490]

Answer:

The type of bonding found in sodium chloride is called ionic bonding.

Explanation:

Ionic bonding is the attraction between two atoms with opposite charges.  In sodium chloride, sodium has a positive charge and chlorine has a negative charge; therefore, they attract one another and form a bond.

6 0
3 years ago
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