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tester [92]
3 years ago
14

What is the chemical formula for Mg2+ and I1- ( magnesium and iodine)

Chemistry
2 answers:
NeTakaya3 years ago
8 0

Answer:MgI2

Explanation:

DENIUS [597]3 years ago
7 0
Explanation:
M
g
2
+
+
2
I
−
→
M
g
I
2
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An unknown liquid has a vapor pressure of 88 mmhg at 45°c and 39 mmhg at 25°c. What is its heat of vaporization?
Elis [28]

The relation between vapour pressure , enthalpy of vapourisation and temperature is

ln(\frac{P1}{P2} ) = \frac{deltaH}{R} (\frac{1}{T2} - \frac{1}{T1})

ln (88/ 39) = DeltaH / 8.314 (1 / 318 - 1 / 298)

0.814 = DeltaH / 8.314 (2.11 X 10^-4 )

DeltaH = -32.07 kJ


6 0
3 years ago
Naturally occuring element X exists in three isotopic forms: X-28 (27.730 amu, 60.58% abundance), X-29 (28.841 amu, 18.35% abund
bazaltina [42]

The Average atomic weight of X is 28.7amu

Isotopes are atoms with the same number of protons but differing numbers of neutrons.

Different isotopes have various atomic masses.

The proportion of atoms with a particular atomic mass that can be found in a naturally occurring sample of an element is known as the relative abundance of an isotope.

An element's average atomic mass is computed as a weighted average by multiplying the relative abundances of its isotopes by their respective atomic masses, then adding the resulting products.

Using mass spectrometry, it is possible to determine the relative abundance of each isotope.

The atomic weight of the element will be a weighted average of the isotopes based on the relative abundance:

(27.730 x 0.6058) + (28.841 x 0.1835) + (31.321 x 0.2107) = 16.7988 + 5.2923+ 6.599 = 28.690 = 28.7 amu.

Average atomic weight of X is 28.7amu

Learn more about Average Atomic Weight here

brainly.com/question/6200158

#SPJ4

3 0
2 years ago
386 g ÷ 20cm3 what is density
tatyana61 [14]
22.3 is the answer to this question
3 0
3 years ago
Read 2 more answers
Which beakers in the model contain solid insoluble substances?
ladessa [460]
Although the models are not provided, I was able to find them and the beakers with solid present in them are:
1C
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This is determined by the fact that the beakers all have a piece of closely packed substance laying at the bottom. This closely packed lattice is characteristic of solid substances, and the fact that they exist in the solution in the solid states indicates that they are insoluble.
7 0
3 years ago
Please help find out code?
Nat2105 [25]
You might need to take more pictures so we can see all the equations clearly
4 0
2 years ago
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