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babunello [35]
2 years ago
15

__________ ___________ can release different forms of energy such as electricity or light, in addition to the release of heat en

ergy. *
Changes in Matter
Exothermic Reactions
Endothermic Reactions
Kinetic Energy
Chemistry
2 answers:
Stells [14]2 years ago
8 0

Answer:

hhhhhhhhhhhhhhhaaaaaaaaaa

Explanation:

you thought i would help you

lorasvet [3.4K]2 years ago
4 0

Answer:

___Exothermic Reactions_____can release different forms of energy such as electricity or light, in addition to the release of heat energy. *

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The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium:
irga5000 [103]

Answer:

71 Ga has a naturally abundance of 36%

Explanation:

Step 1: Given data

Gallium has 2 naturally occurring isotopes: this means the abundance of the 2 isotopes together is 100 %. The atomic weight of Ga is 69.72 amu. This is the average of all the isotopes.

Since the average mass of 69.72 is closer to the mass of 69 Ga, this means 69 Ga will be more present than 71 Ga

Percentage 69 Ga> Percentage 71 Ga

<u>Step 2:</u> Calculate the abundance %

⇒Percentage of 71 Ga = X %

⇒Percentage of 69 Ga = 100 % - X %

The mass balance equation will be:

100*69.72 = x * 71 + (100 - x)*69

6972 = 71x + 6900 -69x

72 = 2x

x = 36 %

71 Ga has a naturally abundance of 36%

69 Ga has a naturally abundance of 64%

3 0
3 years ago
Question 12 of 32
slavikrds [6]
C
Because I am right
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5 0
2 years ago
Which set of numbers gives the correct possible values of l for n = 2
Paha777 [63]
HEY THERE!!

For a given principal quantum number or n, the corresponding angular quantum number or l is equivalent to a range between 0 and (n-1) .

This means that the angular quantum number for a principal quantum number of 2 is equivalent to:

l = 0 -> (n-1) = 0 -> (2-1) = 0 -> 1

So the answer is 0, 1

HOPE IT HELPED YOU.
3 0
3 years ago
Read 2 more answers
3 &amp; 4 Help pleaseeeee
kvasek [131]
3 is C i believe, and as for 4 minerals are solid, natural.. that's about all I can say...
4 0
3 years ago
List the ions in solution in the electrolysis of conc.sodium chloride<br>​
Licemer1 [7]
Chloride ions Cl –(aq) (from the dissolved sodium chloride) are discharged at the positive electrode as chlorine gas, Cl 2(g) sodium ions Na +(aq) (from the dissolved sodium chloride) and hydroxide ions OH –(aq) (from the water) stay behind - they form sodium hydroxide solution, NaOH(aq)
5 0
3 years ago
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