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2 years ago

11

Air with less than 19.5% oxygen cannot support human life. How many moles of oxygen would the caisson if the percent of oxygen i

n the air dropped to 19.4%.

1 answer:

irinina [24]2 years ago

8 0

Are we adding the percent?

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Strigol is an important plant hormone that is released by crops such as rice and sugarcane. Unfortunately for these plants, stri

Len [333]

The hydrogen deficiency index( HDI) of strigol is = 10

<h3>How to calculate HDI:</h3>

The hydrogen deficiency index is used to measure the number of degree of unsaturation of an organic compound.

Strigol is an example of an organic compound because it contains carbons and hydrogen.

To calculate the HDI using the molecular formula given (C19H20O6) the formula for HDI is used which is:

$hdi = \frac{1}{2} (2c + 2 + n - h - x)$

where C = number of carbon atoms = 19

n= number of nitrogen atoms = 0

h= number of hydrogen atoms = 20

X = number of halogen atoms = 0

Note that oxygen was not considered because it forms two bonds and has no impact.

There for HDI =

$\frac{1}{2} (2 \times 19 + 2 + 0 - 20 - 0)$

HDI=

$\frac{1}{2} (40 - 20)$

HDI =

$\frac{1}{2} \times 20$

HDI = 10

Therefore, the hydrogen deficiency index of strigol is = 10

Learn more about unsaturated compounds here:

brainly.com/question/490531

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2 years ago

Which type of chemical reaction occurs in C6H12 + 9O2 ----- 6CO2 + 6H2O?

Annette [7]

Double replacement is happening

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3 years ago

Brain’s family has a compost pile at home they need to put all the weeds the pull up from the garden in it as well as any vegeta

Flauer [41]

Answer: b. It would happen faster at warmer air temperatures

Explanation:saw another site say this was the answer

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3 years ago

Can some body plz help correct me or correct the true or false answers I did wrong. I’m not sure there right :(

3241004551 [841]

4 3 and 5 are wrong:)

4 is true and 5 is false

4. insulators are really thick materials that keep electrons within their space.

For example, a charger the rubber is the insulators and the electrons are flowing inside of the charger so you don't get shocked.

5. without the force of attraction, there are no atoms:)

for number 3, its a trick question

Hope this helped!

(learned these this year so I didn't forget them:)

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2 years ago

Which element has the greatest density at STP?<br> A)calcium. B)carbon<br> C) silicon D)sodium

IgorLugansk [536]

Sodium has the greatest density at STP

6 0

3 years ago

Read 2 more answers