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3 years ago

2. I need to find the angle of corner of a room, what tool could I use?

Chemistry

1 answer:

Pavlova-9 [17]3 years ago

6 0

If anything you would use a protractor but that’s not a answer.... so I would pick whatever relates to a protractor

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Which of the following should have the largest Henry's law constant (kH) in water?XeCl2COCO2CH3CH3

geniusboy [140]

Answer:

Explanation:

Henry's law constant reflects the solubility of a gas in water. The larger the kH, the more soluble is the gas. There is a rule that states that "like dissolves like", meaning polar is soluble in polar and nonpolar is soluble in nonpolar. Since water is polar, we have to consider the nature of these gases.

Xe nonpolar

Cl₂ nonpolar

CO polar

CO₂ nonpolar

CH₃CH₃ nonpolar

CO is the only polar gas, so it has the largest kH.

3 0

3 years ago

Iridium has only two naturally occurring isotopes. Ir-191 with arelative mass of 190.96058 and Ir-193 with a relative mass of192

OLEGan [10]

Answer: The fractional abundance of Ir-191 is 0.372

Explanation:

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$ .....(1)

Let the fractional abundance of Ir-191 be x and that of Ir-193 isotope be (1-x)

For isotope 1 (Ir-191):

Mass of isotope 1 = 190.96058 amu

Fractional abundance of Ir-191 = x

For isotope 1 (Ir-193):

Mass of isotope 1 = 192.96292 amu

Fractional abundance of Ir-193 = (1 - x)

Average atomic mass of iridium = 192.217 amu

Putting values in equation 1, we get:

$192.217=[(190.96058\times x)+(192.96292\times (1-x))]\\\\x=0.372$

Hence, the fractional abundance of Ir-191 is 0.372

6 0

3 years ago

Which element is most reactive sodium,magnesium, or aluminum and why?

ludmilkaskok [199]

Magnesium would be more reactive.

6 0

3 years ago

What do tissues combine to form?

elena55 [62]

Answer is D organs because cell forms tissues, tissues form organs and organs forms the organ system

4 0

3 years ago

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11. Power can be defined as (2 points)

Ierofanga [76]

Answer:

the energy required to do work

4 0

3 years ago